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Solution
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
The Set A has 4 elements and the Set B has 5 elements then the number of injective mappings that can be defined from A to B is
The Set A has 4 elements and the Set B has 5 elements then the number of injective mappings that can be defined from A to B is
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
Let f : R → R be defined by f(x) = 2x + 6 which is a bijective mapping then f−1(x) is given by
Let f : R → R be defined by f(x) = 2x + 6 which is a bijective mapping then f−1(x) is given by
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
Let * be a binary operation defined on R by a ∗ b =
a+b
4
 ∀ a, b ∊ R then the operation ∗ is
Let * be a binary operation defined on R by a ∗ b =
a+b
4
 ∀ a, b ∊ R then the operation ∗ is
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
The value of sin−1(cos‌
53π
5
) is
The value of sin−1(cos‌
53π
5
) is
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
If 3tan−1x+cot−1=π then x equal to
If 3tan−1x+cot−1=π then x equal to
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
The simplified form of tan−1(
x
y
)−tan−1(
x−y
x+y
) is equal to
The simplified form of tan−1(
x
y
)−tan−1(
x−y
x+y
) is equal to
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
If x y z are all different and not equal to zero and |
1+x11
11+y1
111+z
| = 0
then the value of x−1+y−1+z−1 is equal to
If x y z are all different and not equal to zero and |
1+x11
11+y1
111+z
| = 0
then the value of x−1+y−1+z−1 is equal to
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
If A is any square matrix of order 3×3 then |3A| is equal to
If A is any square matrix of order 3×3 then |3A| is equal to
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
If y=esin−1(t2−1) & x=esec−1(
1
t2−1
)then
dy
dx
 is equal to
If y=esin−1(t2−1) & x=esec−1(
1
t2−1
)then
dy
dx
 is equal to
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
If
A=
1
π
[
sin−1(πx)tan−1(
x
π
)
sin−1(
x
π
)		cot−1(πx)
], B=
1
π
[
−cos−1(πx)tan−1(
x
π
)
sin−1(
x
π
)		−tan−1(πx)
]
then A - B is equal to
If
A=
1
π
[
sin−1(πx)tan−1(
x
π
)
sin−1(
x
π
)		cot−1(πx)
], B=
1
π
[
−cos−1(πx)tan−1(
x
π
)
sin−1(
x
π
)		−tan−1(πx)
]
then A - B is equal to
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
If xy=ex−y then
dy
dx
 is equal to
If xy=ex−y then
dy
dx
 is equal to
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
If A is a matrix of order m × n and B is a matrix such that AB' and B'A are both defined, the order of the matrix B is
If A is a matrix of order m × n and B is a matrix such that AB' and B'A are both defined, the order of the matrix B is
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
The value of ∫
ex(1+x)dx
cos2(ex.x)
 is equal to
The value of ∫
ex(1+x)dx
cos2(ex.x)
 is equal to
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
If x y z are not equal and ≠0,≠1 the value of |
logxlogylogz
log‌2‌xlog‌2‌ylog‌2‌z
log‌3‌xlog‌3‌ylog‌3‌z
|is equal to
If x y z are not equal and ≠0,≠1 the value of |
logxlogylogz
log‌2‌xlog‌2‌ylog‌2‌z
log‌3‌xlog‌3‌ylog‌3‌z
|is equal to
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
The function f(x) = [x] where [x] the greatest integer function is continuous at
The function f(x) = [x] where [x] the greatest integer function is continuous at
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
The value of ∫
ex(x2tan−1x+tan−1x+1)
x2+1
dx is equal to
The value of ∫
ex(x2tan−1x+tan−1x+1)
x2+1
dx is equal to
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
If 2
→
a
.
→
b
=|
→
a
|.|
→
b
| then the angle between
→
a
&
→
b
 is
If 2
→
a
.
→
b
=|
→
a
|.|
→
b
| then the angle between
→
a
&
→
b
 is
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
If xmyn=(x+y)m+n then
dy
dx
 is equal to
If xmyn=(x+y)m+n then
dy
dx
 is equal to
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
The general solution of cot‌θ+tan‌θ=2 is
The general solution of cot‌θ+tan‌θ=2 is
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
The value of
π∕4
∫
−π∕4
sin103x.cos101x ‌dx is
The value of
π∕4
∫
−π∕4
sin103x.cos101x ‌dx is
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
The length of latus rectum of the parabola 4y2+3x+3y+1=0 is
The length of latus rectum of the parabola 4y2+3x+3y+1=0 is
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
The value of ∫
e6‌logx−e5‌logx
e4‌logx−e3‌logx
 dx is equal to
The value of ∫
e6‌logx−e5‌logx
e4‌logx−e3‌logx
 dx is equal to
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
The differential coefficient of log10x with respect to logx10 is
The differential coefficient of log10x with respect to logx10 is
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
The slope of the tangent to the curve x=t2+3t−8, y=2t2−2t−5 at the point (2, -1) is
The slope of the tangent to the curve x=t2+3t−8, y=2t2−2t−5 at the point (2, -1) is
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
The real part of (1−cos‌θ+i ‌sin‌θ)−1 is
The real part of (1−cos‌θ+i ‌sin‌θ)−1 is
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
π
2
∫
0
sin1000x‌dx
sin1000x+cos1000x
 is equal to
π
2
∫
0
sin1000x‌dx
sin1000x+cos1000x
 is equal to
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
If 1+sinθ+sin2θ+.... upto ∞=2√3+4, then θ =
If 1+sinθ+sin2θ+.... upto ∞=2√3+4, then θ =
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
lim
x→0
xex−sin‌x
x
 is equal to
lim
x→0
xex−sin‌x
x
 is equal to
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
If tan−1(x2+y2)=α then
dy
dx
 is equal to
If tan−1(x2+y2)=α then
dy
dx
 is equal to
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
The simplified form of in+in+1+in+2+in+3 is
The simplified form of in+in+1+in+2+in+3 is
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
The two curves x3−3xy2+2=0 and 3x2y−y3=2
The two curves x3−3xy2+2=0 and 3x2y−y3=2
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
The equation of the normal to the curve y(1+x2)=2−x where the tangent crosses x-axis is
The equation of the normal to the curve y(1+x2)=2−x where the tangent crosses x-axis is
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
The maximum value of (
1
x
)x is
The maximum value of (
1
x
)x is
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
The solution for the differential equation
dy
y
+
dx
x
=0
The solution for the differential equation
dy
y
+
dx
x
=0
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
The order and degree of the differential equation [1+(
dy
dx
)2+sin(
dy
dx
)]
3
4
 =
d2y
dx2
The order and degree of the differential equation [1+(
dy
dx
)2+sin(
dy
dx
)]
3
4
 =
d2y
dx2
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
If
→
a
‌and‌
→
b
 are unit vectors then what is the angle between
→
a
‌and‌
→
b
 for √3
→
a
−
→
b
 to be unit vector ?
If
→
a
‌and‌
→
b
 are unit vectors then what is the angle between
→
a
‌and‌
→
b
 for √3
→
a
−
→
b
 to be unit vector ?
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
The sum of 1st n terms of the series
12
1
+
12+22
1+2
+
12+22+32
1+2+3
+...
The sum of 1st n terms of the series
12
1
+
12+22
1+2
+
12+22+32
1+2+3
+...
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
The 11th term in the expansion of (x+
1
√x
)14 is
The 11th term in the expansion of (x+
1
√x
)14 is
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
Suppose
→
a
+
→
b
+
→
c
=0, |
→
a
|=3,|
→
b
|=5, |
→
c
|=7, then the angle between
→
a
&
→
b
 is
Suppose
→
a
+
→
b
+
→
c
=0, |
→
a
|=3,|
→
b
|=5, |
→
c
|=7, then the angle between
→
a
&
→
b
 is
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
If |
→
a
|=3,|
→
b
|=4,|
→
c
|=5 each one of
→
a
,
→
b
&
→
c
 is perpendicular to the sum of the remaining then |
→
a
+
→
b
+
→
c
|is equal to
If |
→
a
|=3,|
→
b
|=4,|
→
c
|=5 each one of
→
a
,
→
b
&
→
c
 is perpendicular to the sum of the remaining then |
→
a
+
→
b
+
→
c
|is equal to
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
If the straight lines 2x + 3y - 3 = 0 and x + ky + 7 = 0 are perpendicular, then the value of k is
If the straight lines 2x + 3y - 3 = 0 and x + ky + 7 = 0 are perpendicular, then the value of k is
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
The rate of change of area of a circle with respect to its radius r=2 cms is
The rate of change of area of a circle with respect to its radius r=2 cms is
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
The value of tan
π
8
 is equal to
The value of tan
π
8
 is equal to
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
Area lying between the curves y2=2x‌and‌y=x
Area lying between the curves y2=2x‌and‌y=x
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
If P(A∩B) =
7
10
 and P(B) =
17
20
, where P stands for probability then P(A|B) is equal to
If P(A∩B) =
7
10
 and P(B) =
17
20
, where P stands for probability then P(A|B) is equal to
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
The coefficient of variation of two distributions are 60 and 70. The standard deviation are 21 and 16 respectively, then their mean is
The coefficient of variation of two distributions are 60 and 70. The standard deviation are 21 and 16 respectively, then their mean is
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
Two cards are drawn at random from a pack of 52 cards. The probability of these two being 'Aces" is
Two cards are drawn at random from a pack of 52 cards. The probability of these two being 'Aces" is
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
If sin−1x+sin−1y=
π
2
, then x2 is equal to
If sin−1x+sin−1y=
π
2
, then x2 is equal to
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
The value of
8
∫
2
√10−x
√x+√10−x
dx is
The value of
8
∫
2
√10−x
√x+√10−x
dx is
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
The contra positive of the converse of the statement “If x is a prime number then x is odd” is
The contra positive of the converse of the statement “If x is a prime number then x is odd” is
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
Two dice are thrown simultaneously, the probability of obtaining a total score of 5 is
Two dice are thrown simultaneously, the probability of obtaining a total score of 5 is
Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
If A=[
cos2θ−sin2θ
sin2θcos2θ
] and A+AT=I,
where I is the unit matrix of 2 × 2 & AT is the transpose of A, then the value of θ is equal to
If A=[
cos2θ−sin2θ
sin2θcos2θ
] and A+AT=I,
where I is the unit matrix of 2 × 2 & AT is the transpose of A, then the value of θ is equal to
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
If A =[
31
−12
] then A2−5A is equal to
If A =[
31
−12
] then A2−5A is equal to
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
The value of if x(
^
i
+
^
j
+
^
k
) is a unit vector is
The value of if x(
^
i
+
^
j
+
^
k
) is a unit vector is
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
If x=2+3‌cos‌θ and y=1−3‌sin‌θ represent a circle then the centre and radius is
If x=2+3‌cos‌θ and y=1−3‌sin‌θ represent a circle then the centre and radius is
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
The vector equation of the plane which is at a distance of
3
√14
 from the origin and the normal from the origin is 2
^
i
−3
^
j
+
^
k
 is
The vector equation of the plane which is at a distance of
3
√14
 from the origin and the normal from the origin is 2
^
i
−3
^
j
+
^
k
 is
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
Find the co-ordinates of the foot of the perpendicular drawn from the origin to the plane 5y + 8 = 0 :
Find the co-ordinates of the foot of the perpendicular drawn from the origin to the plane 5y + 8 = 0 :
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
If cos α, cos β, cos γ are the direction cosines of a vector
→
a
 , then cos 2α + cos 2β + cos 2γ is equal to
If cos α, cos β, cos γ are the direction cosines of a vector
→
a
 , then cos 2α + cos 2β + cos 2γ is equal to
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
The value of the sin 1° + sin 2° + ......+ sin 359° is equal to
The value of the sin 1° + sin 2° + ......+ sin 359° is equal to
Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
Integrating factor of x
dy
dx
−y=x4−3x is
Integrating factor of x
dy
dx
−y=x4−3x is
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
A body falls freely for 10 sec. Its average velocity during this journey (take g=10ms−2)
A body falls freely for 10 sec. Its average velocity during this journey (take g=10ms−2)
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
Three projectiles A, B and C are projected at an angle of 30°, 45°, 60° respectively. If RA,RB‌and‌Rc are ranges of A, B and C respectively, then (velocity of projection is same for A, B & C)
Three projectiles A, B and C are projected at an angle of 30°, 45°, 60° respectively. If RA,RB‌and‌Rc are ranges of A, B and C respectively, then (velocity of projection is same for A, B & C)
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
The component of a vector
→
r
 along x - axis will have a maximum value if
The component of a vector
→
r
 along x - axis will have a maximum value if
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
Maximum acceleration of the train in which a 50 kg box lying on its floor will remain stationary (Given : Co-efficient of static friction between the box and the train’s floor is 0.3 and g=10ms−2)
Maximum acceleration of the train in which a 50 kg box lying on its floor will remain stationary (Given : Co-efficient of static friction between the box and the train’s floor is 0.3 and g=10ms−2)
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
A 12 kg bomb at rest explodes into two pieces of 4 kg and 8 kg. If the momentum of 4 kg piece is 20 Ns, the kinetic energy of the 8 kg piece is
A 12 kg bomb at rest explodes into two pieces of 4 kg and 8 kg. If the momentum of 4 kg piece is 20 Ns, the kinetic energy of the 8 kg piece is
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
Which of the points is likely position of the centre of mass of the system shown in the figure ?
Which of the points is likely position of the centre of mass of the system shown in the figure ?
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
Three bodies a ring (R), a solid cylinder (C) and a solid sphere (S) having same mass and same radius roll down the inclined plane without slipping. They start from rest, if vR,vc‌and‌vs are velocities of respective bodies on reaching the bottom of the plane, then
Three bodies a ring (R), a solid cylinder (C) and a solid sphere (S) having same mass and same radius roll down the inclined plane without slipping. They start from rest, if vR,vc‌and‌vs are velocities of respective bodies on reaching the bottom of the plane, then
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
Variation of acceleration due to gravity (g) with distance x from the centre of the earth is best represented by (R → Radius of the earth)
Variation of acceleration due to gravity (g) with distance x from the centre of the earth is best represented by (R → Radius of the earth)
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
A spring is stretched by applying a load to its free end. The strain produced in the spring is
A spring is stretched by applying a load to its free end. The strain produced in the spring is
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
An ideal fluid flows through a pipe of circular cross section with diameters 5 cm and 10 cm as shown. The ratio of velocities of fluid at A and B is
An ideal fluid flows through a pipe of circular cross section with diameters 5 cm and 10 cm as shown. The ratio of velocities of fluid at A and B is
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
A pan filled with hot food cools from 94 °C to 86 °C in 2 minutes. When the room temperature'is 20 °C. How long will it cool from 74 °C to 66 °C ?
A pan filled with hot food cools from 94 °C to 86 °C in 2 minutes. When the room temperature'is 20 °C. How long will it cool from 74 °C to 66 °C ?
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
Four rods with different radii r and length l are used to connect two heat reservoirs at different temperature. Which one will conduct most heat ?
Four rods with different radii r and length l are used to connect two heat reservoirs at different temperature. Which one will conduct most heat ?
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
A Carnot engine working between 300 K and 400 K has 800 J of useful work. The amount of heat energy supplied to the engine from the source is
A Carnot engine working between 300 K and 400 K has 800 J of useful work. The amount of heat energy supplied to the engine from the source is
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
A particle executing SHM has a maximum speed of 0.5ms−1 and maximum acceleration of 1.0ms−2.The angular frequency of oscillation is
A particle executing SHM has a maximum speed of 0.5ms−1 and maximum acceleration of 1.0ms−2.The angular frequency of oscillation is
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
A source of sound is moving with a velocity of 50ms−1 towards a stationary observer. The observer measures the frequency of sound as 500 Hz. The apparent frequency of sound as heard by the observer when source is moving away from him with the same speed is (Speed of sound at room temperature 350ms−1)
A source of sound is moving with a velocity of 50ms−1 towards a stationary observer. The observer measures the frequency of sound as 500 Hz. The apparent frequency of sound as heard by the observer when source is moving away from him with the same speed is (Speed of sound at room temperature 350ms−1)
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
If there are only one type of charge in the universe, then
(
→
E
 Electric field,
→
ds
 →Area vector)
If there are only one type of charge in the universe, then
(
→
E
 Electric field,
→
ds
 →Area vector)
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
An electron of mass m, charge e falls through a distance h meter in a uniform electric field E. Then time of fall
An electron of mass m, charge e falls through a distance h meter in a uniform electric field E. Then time of fall
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
If
→
E
ax‌and‌
→
E
eq represents electric field at a point on the axial and equatorial line of a dipole. If points are at a distance r from the centre of the dipole, for r >> a
If
→
E
ax‌and‌
→
E
eq represents electric field at a point on the axial and equatorial line of a dipole. If points are at a distance r from the centre of the dipole, for r >> a
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
Nature of equipotential surface for a point charge is
Nature of equipotential surface for a point charge is
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
A particle of mass 1 gm and charge 1 µC is held at rest on a frictionless horizontal surface at distance 1 m from the fixed charge 2 mC. If the particle is released, it will be repelled. The speed of the particle when it is at a distance of 10 m from the fixed charge
A particle of mass 1 gm and charge 1 µC is held at rest on a frictionless horizontal surface at distance 1 m from the fixed charge 2 mC. If the particle is released, it will be repelled. The speed of the particle when it is at a distance of 10 m from the fixed charge
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
A capacitor of 8 F is connected as shown. Charge on the plates of the capacitor
 
A capacitor of 8 F is connected as shown. Charge on the plates of the capacitor
 
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
Four metal plates are arranged as shown. Capacitance between X and Y
(A → Area of each plate, d → distance between the plates)
 
Four metal plates are arranged as shown. Capacitance between X and Y
(A → Area of each plate, d → distance between the plates)
 
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
Mobility of free electrons in a conductor is
Mobility of free electrons in a conductor is
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
Variation of resistance of the conductor with temperature is as shown
The temperature co-efficient (α) of the conductor is
Variation of resistance of the conductor with temperature is as shown

The temperature co-efficient (α) of the conductor is
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
Potential difference between A and B in the following circuit
Potential difference between A and B in the following circuit
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
In the following network potential at ‘O’
 
In the following network potential at ‘O’

Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
Effective resistance between A and B in the following circuit
Effective resistance between A and B in the following circuit
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
Two heating coils of resistances 10 Ω and 20 Ω are connected in parallel and connected to a battery of emf 12 V and internal resistance 1 Ω. The power consumed by them are in the ratio
Two heating coils of resistances 10 Ω and 20 Ω are connected in parallel and connected to a battery of emf 12 V and internal resistance 1 Ω. The power consumed by them are in the ratio
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
A proton is projected with a uniform velocity 'v' along the axis of a current carrying solenoid, then
A proton is projected with a uniform velocity 'v' along the axis of a current carrying solenoid, then
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
In the cyclotron, as radius of the circular path of the charged particle increases (to = angular velocity, v = linear velocity)
In the cyclotron, as radius of the circular path of the charged particle increases (to = angular velocity, v = linear velocity)
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
A conducting wire carrying current is arranged as shown. The magnetic field at ‘O’
  
A conducting wire carrying current is arranged as shown. The magnetic field at ‘O’

Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
The quantity of a charge that will be transferred by a current flow of 20 A over 1 hour 30 minutes period is
The quantity of a charge that will be transferred by a current flow of 20 A over 1 hour 30 minutes period is
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
A galvanometer coil has a resistance of 50 Ω and the meter shows full scale deflection for a current of 5 mA, This galvanometer is converted into voltmeter of range 0 - 20 V by connecting
A galvanometer coil has a resistance of 50 Ω and the meter shows full scale deflection for a current of 5 mA, This galvanometer is converted into voltmeter of range 0 - 20 V by connecting
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
x1‌and‌x2 are susceptibility of a paramagnetic material at temperatures T1K‌and‌T2‌K respectively, then
x1‌and‌x2 are susceptibility of a paramagnetic material at temperatures T1K‌and‌T2‌K respectively, then
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
At certain place, the horizontal component of earth’s magnetic field is 3.0 G and the angle dip at that place is 30°. The magnetic field of earth at that location
At certain place, the horizontal component of earth’s magnetic field is 3.0 G and the angle dip at that place is 30°. The magnetic field of earth at that location
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
The process of super imposing message signal on high frequency carrier wave is called
The process of super imposing message signal on high frequency carrier wave is called
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
A long solenoid with 40 turns per cm carries a current of 1 A. The magnetic energy stored per unit volume is________ Jm−3.
A long solenoid with 40 turns per cm carries a current of 1 A. The magnetic energy stored per unit volume is________ Jm−3.
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
A wheel with 10 spokes each of length ‘L’ m is rotated with a uniform angular velocity ‘ω’ in a plane normal to the magnetic field ‘B’. The emf induced between the axle and the rim of the wheel.
A wheel with 10 spokes each of length ‘L’ m is rotated with a uniform angular velocity ‘ω’ in a plane normal to the magnetic field ‘B’. The emf induced between the axle and the rim of the wheel.
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
The rms value of current in a 50 Hz AC circuit is 6 A. The average value of AC current over a cycle is
The rms value of current in a 50 Hz AC circuit is 6 A. The average value of AC current over a cycle is
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
A capacitor of capacitance 10 µF is connected to an AC source and an AC Ammeter. If the source voltage varies as V=50√2‌sin‌100‌t, the reading of the ammeter is
A capacitor of capacitance 10 µF is connected to an AC source and an AC Ammeter. If the source voltage varies as V=50√2‌sin‌100‌t, the reading of the ammeter is
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
In a series L.C.R circuit, the potential drop across L, C and R respectively are 40 V, 120 V and 60 V. Then the source voltage is
In a series L.C.R circuit, the potential drop across L, C and R respectively are 40 V, 120 V and 60 V. Then the source voltage is
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
In a series L.C.R. circuit an alternating emf (v) and current (i) are given by the equation
v=v0sinωt, l=i0sin(ωt+
π
3
)
The average power discipated in the circuit over a cycle of AC is
In a series L.C.R. circuit an alternating emf (v) and current (i) are given by the equation
v=v0sinωt, l=i0sin(ωt+
π
3
)
The average power discipated in the circuit over a cycle of AC is
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
Electromagnetic radiation used to sterilise milk is
Electromagnetic radiation used to sterilise milk is
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
A plane glass plate is placed over a various coloured letters (violet, green, yellow, red). The letter which appears to raised more
A plane glass plate is placed over a various coloured letters (violet, green, yellow, red). The letter which appears to raised more
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
A ray of light passes through four transparent media with refractive index n1,n2,n3‌and‌n4 as shown. The surfaces of all media are parallel
If the emergent ray DE is parallels to incident ray AB, then
A ray of light passes through four transparent media with refractive index n1,n2,n3‌and‌n4 as shown. The surfaces of all media are parallel

If the emergent ray DE is parallels to incident ray AB, then
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
Focal length of a convex lens is 20 cm and its (RI) is 1.5. It produces an erect, enlarged image if the distance of the object from the lens is
Focal length of a convex lens is 20 cm and its (RI) is 1.5. It produces an erect, enlarged image if the distance of the object from the lens is
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
A ray of light suffers a minimum deviation when incident on an equilateral prism of refractive index √2 . The angle of incidence is
A ray of light suffers a minimum deviation when incident on an equilateral prism of refractive index √2 . The angle of incidence is
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
In Young’s double slit experiment the source is white light. One slit is covered with red filter and the other with blue filter. There shall be
In Young’s double slit experiment the source is white light. One slit is covered with red filter and the other with blue filter. There shall be
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
Light of wavelength 600 ηm is incident normally on a slit of width 0.2 mm. The angular width of central maxima in the diffraction pattern is (measured from minimum to minimum)
Light of wavelength 600 ηm is incident normally on a slit of width 0.2 mm. The angular width of central maxima in the diffraction pattern is (measured from minimum to minimum)
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
For what distance is ray optics is good approximation when the aperture is 4 mm and the wavelength of light is 400 ηm ?
For what distance is ray optics is good approximation when the aperture is 4 mm and the wavelength of light is 400 ηm ?
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
The variation of photo-current with collector potential for different frequencies of incident radiation v1,v2 and v3 is as shown in the graph, then

The variation of photo-current with collector potential for different frequencies of incident radiation v1,v2 and v3 is as shown in the graph, then

Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
The de Broglie wavelength of an electron accelerated to a potential of 400 V is approximately
The de Broglie wavelength of an electron accelerated to a potential of 400 V is approximately
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
Total energy of electron in an excited state of hydrogen atom is -3.4 eV. The kinetic and potential energy of electron in this state
Total energy of electron in an excited state of hydrogen atom is -3.4 eV. The kinetic and potential energy of electron in this state
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
When electron jumps from n = 4 level to n = 1 level, the angular momentum of electron changes by
When electron jumps from n = 4 level to n = 1 level, the angular momentum of electron changes by
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
A radio-active sample of half-life 10 days contains 1000 x nuclei. Number of original nuclei present after 5 days is
A radio-active sample of half-life 10 days contains 1000 x nuclei. Number of original nuclei present after 5 days is
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
An element X decays into element Z by two-step process.
X → Y +
4
‌
2
He
Y → Z + 2 e− then :
An element X decays into element Z by two-step process.
X → Y +
4
‌
2
He
Y → Z + 2 e− then :
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
A nucleus of mass 20 u emits a γ photon of energy 6 MeV. If the emission assume to occur when nucleus is free and rest, then the nucleus will have kinetic energy nearest to
(take 1u=1.6×10−27 kg)
A nucleus of mass 20 u emits a γ photon of energy 6 MeV. If the emission assume to occur when nucleus is free and rest, then the nucleus will have kinetic energy nearest to
(take 1u=1.6×10−27 kg)
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
Constant DC voltage is required from a variable AC voltage. Which of the following is correct order of operation ?
Constant DC voltage is required from a variable AC voltage. Which of the following is correct order of operation ?
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
In a transistor, the collector current varies by 0.49 mA and emitter current varies by 0.50 mA. Current gain β measured is
In a transistor, the collector current varies by 0.49 mA and emitter current varies by 0.50 mA. Current gain β measured is
Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
Identify the logic operation carried out by the following circuit.
Identify the logic operation carried out by the following circuit.
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
The half-life period of a 1st order reaction is 60 minutes. What percentage will be left over after 240 minutes ?
The half-life period of a 1st order reaction is 60 minutes. What percentage will be left over after 240 minutes ?
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
Which of the following is not a colligative property ?
Which of the following is not a colligative property ?
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
The contribution of particle at the edge centre to a particular unit cell is
The contribution of particle at the edge centre to a particular unit cell is
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
When an electrolyte is dissociated in solution, the van’t Hoff's factor (i) is,
When an electrolyte is dissociated in solution, the van’t Hoff's factor (i) is,
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
Which of the following is incorrect in a galvanic cell ?
Which of the following is incorrect in a galvanic cell ?
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
A secondary cell is one
A secondary cell is one
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
Osmotic pressure of the solution can be increased by,
Osmotic pressure of the solution can be increased by,
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
The amount of current in Faraday is required for the reduction of 1 mol of Cr2O72− ions to Cr3+ is,
The amount of current in Faraday is required for the reduction of 1 mol of Cr2O72− ions to Cr3+ is,
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
For a chemical reaction,
mA → xB, the rate law is r=k[A]2.
If the concentration of A is doubled, the reaction rate will be,
For a chemical reaction,
mA → xB, the rate law is r=k[A]2.
If the concentration of A is doubled, the reaction rate will be,
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
Schottky defect in a crystal is observed when,
Schottky defect in a crystal is observed when,
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
3A → 2B, rate of reaction +
d[B]
dt
 is equal to
3A → 2B, rate of reaction +
d[B]
dt
 is equal to
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
The activation energy of a chemical reaction can be determined by,
The activation energy of a chemical reaction can be determined by,
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
Which of the following statements is incorrect w.r.t. Physisorption ?
Which of the following statements is incorrect w.r.t. Physisorption ?
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
Sulphur sol contains
Sulphur sol contains
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
Reactions in Zeolite catalyst depend on,
Reactions in Zeolite catalyst depend on,
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
IUPAC name of the compound
IUPAC name of the compound

Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
Replacement of Cl of Chlorobenzene to give phenol requires drastic conditions, but Cl of 2, 4 - dinitro chlorobenzene is readily replaced. This is because,
Replacement of Cl of Chlorobenzene to give phenol requires drastic conditions, but Cl of 2, 4 - dinitro chlorobenzene is readily replaced. This is because,
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
In the reaction :
Ethanol‌
PCl5
–––––––>
‌X‌
alc‌KOH
–––––––>
 Y
H2SO4,room‌temp.
–––––––––––––––>
H2O,Δ
Z, the product Z is
In the reaction :
Ethanol‌
PCl5
–––––––>
‌X‌
alc‌KOH
–––––––>
 Y
H2SO4,room‌temp.
–––––––––––––––>
H2O,Δ
Z, the product Z is
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
Which of the following compound is most acidic ?
Which of the following compound is most acidic ?
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
Benzene carbaldehyde is reacted with concentrated NaOH solution to give the products A and B. The product A can be used food preservative and the product B is an aromatic hydroxy compound where OH gorup is linked to sp3 hybridised carbon atom next to Benzene ring. The products A and B are respectively,
Benzene carbaldehyde is reacted with concentrated NaOH solution to give the products A and B. The product A can be used food preservative and the product B is an aromatic hydroxy compound where OH gorup is linked to sp3 hybridised carbon atom next to Benzene ring. The products A and B are respectively,
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
The reaction which involves dichlorocarbene as an electrophile is,
The reaction which involves dichlorocarbene as an electrophile is,
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
Ethanol is converted into ethoxy ethane,
Ethanol is converted into ethoxy ethane,
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
An organic compound X is oxidised by using acidified K2Cr2O7 solution. The product obtained reacts with phenyl hydrazine but does not answer silver mirror test. The compound X is,
An organic compound X is oxidised by using acidified K2Cr2O7 solution. The product obtained reacts with phenyl hydrazine but does not answer silver mirror test. The compound X is,
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
Predict the product ‘C’ in the following series of reactions :
CH3−COOH
PCl5
–––––––>
 A
C6H6
–––––––>
Anhyd‌AlCl3
B
CH3MgBr
–––––––>
C
Predict the product ‘C’ in the following series of reactions :
CH3−COOH
PCl5
–––––––>
 A
C6H6
–––––––>
Anhyd‌AlCl3
B
CH3MgBr
–––––––>
C
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
The number of oxygen atoms in 4.4 gm of CO2 is,
The number of oxygen atoms in 4.4 gm of CO2 is,
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
If the bond energies of H-H, Br-Br and H-Br are 433, 192 and 364‌kJ‌mol−1 respectively, then ΔH° for the reaction :
H2(g)+Br2(g)→2HBr(g)
If the bond energies of H-H, Br-Br and H-Br are 433, 192 and 364‌kJ‌mol−1 respectively, then ΔH° for the reaction :
H2(g)+Br2(g)→2HBr(g)
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
In the reaction; Fe(OH)3(s)⇌Fe3+(aq)+3OH−(aq), if the concentration of OH− ions is decreased by
1
4
 times, then the equilibrium concentration of Fe3+ will increase by,
In the reaction; Fe(OH)3(s)⇌Fe3+(aq)+3OH−(aq), if the concentration of OH− ions is decreased by
1
4
 times, then the equilibrium concentration of Fe3+ will increase by,
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
The correct statement regarding entropy is,
The correct statement regarding entropy is,
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
Equilibrium constants K1, and K2 for the following equilibria
(a) NO(g)+
1
2
O2(g)⇌NO2(g)
(b) 2NO2(g)⇌2‌NO(g)+O2(g)
are related as :
Equilibrium constants K1, and K2 for the following equilibria
(a) NO(g)+
1
2
O2(g)⇌NO2(g)
(b) 2NO2(g)⇌2‌NO(g)+O2(g)
are related as :
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
Van-Arkel method of refining Zirconium involves,
Van-Arkel method of refining Zirconium involves,
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
The composition of ‘copper matte’ is,
The composition of ‘copper matte’ is,
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
The complex formed when Al2O3 is leached from Bauxite using concentrated NaOH solution is,
The complex formed when Al2O3 is leached from Bauxite using concentrated NaOH solution is,
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
The property which is not true about Fluorine is,
The property which is not true about Fluorine is,
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
Which is true regarding nitrogen ?
Which is true regarding nitrogen ?
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
The shape of XeF6 is,
The shape of XeF6 is,
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
The number of isomers possible for the octahedral complex [CoCl2(en)(NH3)2]+ is,
The number of isomers possible for the octahedral complex [CoCl2(en)(NH3)2]+ is,
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
CO is a stronger ligand than Cl−, because
CO is a stronger ligand than Cl−, because
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
The metal ion having maximum paramagnetic behaviour among the first transition series elements is,
The metal ion having maximum paramagnetic behaviour among the first transition series elements is,
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
When a brown compound of Mn (A) is treated with HCl, it gives a gas (B). The gas (B) taken in excess reacts with NH3 to give an explosive compound (C).
The compounds A, B and C are;
When a brown compound of Mn (A) is treated with HCl, it gives a gas (B). The gas (B) taken in excess reacts with NH3 to give an explosive compound (C).
The compounds A, B and C are;
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
Mn2+ compounds are more stable than Fe2+ compounds towards oxidation to their +3 state, because
Mn2+ compounds are more stable than Fe2+ compounds towards oxidation to their +3 state, because
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
Which of the following sequence is correct regarding field strength of ligands as per spectrochemical series ?
Which of the following sequence is correct regarding field strength of ligands as per spectrochemical series ?
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
As per IUPAC norms, the name of the complex [Co(en)2(ONO)Cl]Cl is
As per IUPAC norms, the name of the complex [Co(en)2(ONO)Cl]Cl is
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
In the following sequence of reactions ;
A
Reduction
–––––––>
B
HNO2
–––––––>
CH3CH2OH
The compound A is
In the following sequence of reactions ;
A
Reduction
–––––––>
B
HNO2
–––––––>
CH3CH2OH
The compound A is
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
An organic compound A on reduction gives compound B, which on reaction with trichloro methane and caustic potash forms C. The compound ‘C’ on catalytic reduction gives N-methyl benzenamine, the compound ‘A’ is,
An organic compound A on reduction gives compound B, which on reaction with trichloro methane and caustic potash forms C. The compound ‘C’ on catalytic reduction gives N-methyl benzenamine, the compound ‘A’ is,
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
Which of the following gives positive Fehling’s solution test ?
Which of the following gives positive Fehling’s solution test ?
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
A liquid can exist only,
A liquid can exist only,
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
The energy of electron in the nth Bohr orbit of H-atom is
The energy of electron in the nth Bohr orbit of H-atom is
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
Consider the following sets of quantum numbers :
Which of the below setting is not permissible arrangement of electrons in an atom ?
Consider the following sets of quantum numbers :
Which of the below setting is not permissible arrangement of electrons in an atom ?
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
The increasing order of bond order of O2,O2+,O2−, and O2−− is
The increasing order of bond order of O2,O2+,O2−, and O2−− is
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
HCl gas is covalent and NaCl is an ionic compound. This is because
HCl gas is covalent and NaCl is an ionic compound. This is because
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
Which of the following is not true ?
Which of the following is not true ?
Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
Which of the following is a polyamide ?
Which of the following is a polyamide ?
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
Which of the following is correct about H-bonding in DNA ?
Which of the following is correct about H-bonding in DNA ?
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
Which of the following is employed as Tranquilizer ?
Which of the following is employed as Tranquilizer ?
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
Reactivity of order of halides for dehydrohalogenation is
Reactivity of order of halides for dehydrohalogenation is
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
Main axis of diatomic molecule is Z. The orbitals Px‌and‌Py overlap to form
Main axis of diatomic molecule is Z. The orbitals Px‌and‌Py overlap to form
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
The hybridisation of C in diamond, graphite and ethyne is in the order
The hybridisation of C in diamond, graphite and ethyne is in the order
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
A miscible mixture of C6H6+CHCl3 can be separated by
A miscible mixture of C6H6+CHCl3 can be separated by
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
An organic compound contains C = 40%, H = 13.33% and N = 46.67%. Its emperical formula is
An organic compound contains C = 40%, H = 13.33% and N = 46.67%. Its emperical formula is
Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
Electrophile that participates in nitration of benzene is
Electrophile that participates in nitration of benzene is
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
In a dithecous anther, each pollen sac contains 1000 MMC. What is the total number of pollen-grains produced by the anther?
In a dithecous anther, each pollen sac contains 1000 MMC. What is the total number of pollen-grains produced by the anther?
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
The edible part of the fruit of apple is:
The edible part of the fruit of apple is:
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
Desired genes have been introduced into transgenic animals to obtain large scale production of useful biological products encoded by these genes. This approach is generally referred to as:
Desired genes have been introduced into transgenic animals to obtain large scale production of useful biological products encoded by these genes. This approach is generally referred to as:
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
Sarcomere is the functional unit of contraction in a muscle fiber. Identify the portion of myofibril that constitute a sarcomere.
Sarcomere is the functional unit of contraction in a muscle fiber. Identify the portion of myofibril that constitute a sarcomere.
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
The puffed-up appearance of dough is due to fermentation by bacteria. Identify the gas liberated during the process.
The puffed-up appearance of dough is due to fermentation by bacteria. Identify the gas liberated during the process.
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
Amniocentesis is one of the methods:
Amniocentesis is one of the methods:
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
Some desert beetles can survive on “metabolic water”, without ever drinking liquid water which:
Some desert beetles can survive on “metabolic water”, without ever drinking liquid water which:
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
Pick the hormone which is not secreted by human placenta.
Pick the hormone which is not secreted by human placenta.
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
The hormone ‘melatonin’ is secreted by the gland:
The hormone ‘melatonin’ is secreted by the gland:
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
One of the breeding techniques useful to eliminate harmful recessive genes by selection is:
One of the breeding techniques useful to eliminate harmful recessive genes by selection is:
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
Connel’s field experiment on the rocky sea coast of Scotland,where larger Barnacle Balanus dominates the intertidal area and removes the smaller Barnacle Chthamalus. This happened due to:
Connel’s field experiment on the rocky sea coast of Scotland,where larger Barnacle Balanus dominates the intertidal area and removes the smaller Barnacle Chthamalus. This happened due to:
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
Most suitable method of introducing align DNA into a plant cell is:
Most suitable method of introducing align DNA into a plant cell is:
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
The relative contribution of various greenhouse gases to total global warming is given in the following diagram:

Identify the greenhouse gases.
The relative contribution of various greenhouse gases to total global warming is given in the following diagram:

Identify the greenhouse gases.
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
Which one of the following statements is correct?
Which one of the following statements is correct?
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
In which type of interactions, both the interacting organisms do not live close together?
In which type of interactions, both the interacting organisms do not live close together?
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
Match the plant structures given in the Column I with their plants given in the Column II.

Match the plant structures given in the Column I with their plants given in the Column II.
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
The gene disorder phenylketonuria is an example for:
The gene disorder phenylketonuria is an example for:
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
Identify from the following group of animals, which exhibit oestrous cycle.
Identify from the following group of animals, which exhibit oestrous cycle.
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
Find the mis-match from the following pairs.
Find the mis-match from the following pairs.
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
‘A’ and ‘B’ are the two adjacent living cells. The cell ‘A’ has solute potential (ψs) of −9 bars and pressure potential (ψp) of 4 bars, whereas cell ‘B’ has solute potential (ψs) of −8 bars and pressure potential (ψp) of 5 bars. What will be the direction of water movement between these cells?
‘A’ and ‘B’ are the two adjacent living cells. The cell ‘A’ has solute potential (ψs) of −9 bars and pressure potential (ψp) of 4 bars, whereas cell ‘B’ has solute potential (ψs) of −8 bars and pressure potential (ψp) of 5 bars. What will be the direction of water movement between these cells?
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
A plant is provided with ideal conditions for photosynthesis and supplied with isotope 14CO2,When the products of the process are analysed carefully, what would be the nature of products?
A plant is provided with ideal conditions for photosynthesis and supplied with isotope 14CO2,When the products of the process are analysed carefully, what would be the nature of products?
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
In a polysaccharide, number of monosaccharides are linked by:
In a polysaccharide, number of monosaccharides are linked by:
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
The primary treatment of sewage water involves:
The primary treatment of sewage water involves:
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
A scrubber in the exhaust of a chemical industry removes:
A scrubber in the exhaust of a chemical industry removes:
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
A person admitted to hospital as he had myocardial infarction.A cardiologist injecting him ‘streptokinase’, why?
A person admitted to hospital as he had myocardial infarction.A cardiologist injecting him ‘streptokinase’, why?
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
A person who has allergy, the type of antibody produced in his body is:
A person who has allergy, the type of antibody produced in his body is:
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
Find the sequence of binding of the following aminoacyl tRNA complexes during translation to mRNA transcribed by a DNA segment having the base sequences 3′ TACATGGGTCCG 5′.

Choose the answer showing the correct order of alphabets.
Find the sequence of binding of the following aminoacyl tRNA complexes during translation to mRNA transcribed by a DNA segment having the base sequences 3′ TACATGGGTCCG 5′.

Choose the answer showing the correct order of alphabets.
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
Which one of the following statements is wrong with respect to separation of DNA fragments on gel electrophoresis?
Which one of the following statements is wrong with respect to separation of DNA fragments on gel electrophoresis?
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
E. coli bacteria grew in 15NH4‌Cl medium for several generations are allowed to grow in 14NH4‌Cl medium. After 2 generations, the bacteria are isolated from the medium and DNA of bacteria centrifuged in CsCl. The result of the density gradient of DNA is:
E. coli bacteria grew in 15NH4‌Cl medium for several generations are allowed to grow in 14NH4‌Cl medium. After 2 generations, the bacteria are isolated from the medium and DNA of bacteria centrifuged in CsCl. The result of the density gradient of DNA is:
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
A doctor identifies symptoms of nasal congestion, headache,sore throat, hoarseness, cough in a patient. The conclusion is that, the patient is infected by a pathogen:
A doctor identifies symptoms of nasal congestion, headache,sore throat, hoarseness, cough in a patient. The conclusion is that, the patient is infected by a pathogen:
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
Which among these is not a post fertilization event?
Which among these is not a post fertilization event?
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
Choose the correct sequence of events occur in human reproduction.
Choose the correct sequence of events occur in human reproduction.
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
Offspring formed during sexual reproduction exhibits more variation than those formed by asexual method, because:
Offspring formed during sexual reproduction exhibits more variation than those formed by asexual method, because:
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
The gene for haemophilia is located on ‘X’ chromosome. Hence it is normally impossible for a:
The gene for haemophilia is located on ‘X’ chromosome. Hence it is normally impossible for a:
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
Snow blindness is caused due to:
Snow blindness is caused due to:
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
The codons UUU and UUC codes for phenylalanine only. This feature of genetic code is called:
The codons UUU and UUC codes for phenylalanine only. This feature of genetic code is called:
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
Some of the events occur during life cycle of Plasmodium are given below. Identify the correct statement.
Some of the events occur during life cycle of Plasmodium are given below. Identify the correct statement.
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
A population is correctly defined as having which of the following characteristics?
(A) Inhabiting the same geography area
(B) Individuals belonging to same species
(C) Possessing a constant and uniform density and dispersion
A population is correctly defined as having which of the following characteristics?
(A) Inhabiting the same geography area
(B) Individuals belonging to same species
(C) Possessing a constant and uniform density and dispersion
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
Digestion of proteins is incomplete in the absence of enterokinase, because:
Digestion of proteins is incomplete in the absence of enterokinase, because:
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
A human male is heterozygous for autosomal genes ‘A’ and ‘B’.He is also hemizygous for haemophilic gene ‘h’. What percentage of sperms will carry ‘abh’ genotype?
A human male is heterozygous for autosomal genes ‘A’ and ‘B’.He is also hemizygous for haemophilic gene ‘h’. What percentage of sperms will carry ‘abh’ genotype?
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
Which one of the following statements is not correct about a plasmid?
Which one of the following statements is not correct about a plasmid?
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
What is the role of competitive inhibitor during enzyme action?
What is the role of competitive inhibitor during enzyme action?
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
The rate of formation of new organic matter by deer in a forest ecosystem is called:
The rate of formation of new organic matter by deer in a forest ecosystem is called:
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
Identify a microorganism that can produces biomass of protein.
Identify a microorganism that can produces biomass of protein.
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
In a taxonomic hierarchy, the number of common characters will increase as we go from:
In a taxonomic hierarchy, the number of common characters will increase as we go from:
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
From the following pedigree chart of a family, one can make an analysis that:
From the following pedigree chart of a family, one can make an analysis that:
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
What is the function of the enzyme ‘recombinase’ during meiosis?
What is the function of the enzyme ‘recombinase’ during meiosis?
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
One of the following area is an example for secondary succession, if the succession takes place in/on:
One of the following area is an example for secondary succession, if the succession takes place in/on:
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
Which one of these is not an accessory gland in male reproductive system?
Which one of these is not an accessory gland in male reproductive system?
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
Read the following statements carefully and choose the correct statements.
(A) In a transcription unit, the promoter located at the 5′ end of coding strand.
(B) The single strand DNA having the polarity 5′ → 3′ is the template strand.
(C) RNA polymerase binds to the operator during transcription.
(D) Single base DNA differences occur in humans are called Single Nucleotide Polymorphism (SNPs).
Read the following statements carefully and choose the correct statements.
(A) In a transcription unit, the promoter located at the 5′ end of coding strand.
(B) The single strand DNA having the polarity 5′ → 3′ is the template strand.
(C) RNA polymerase binds to the operator during transcription.
(D) Single base DNA differences occur in humans are called Single Nucleotide Polymorphism (SNPs).
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
Plants obtained through tissue culture are genetically identical and they are obtained by somatic cells. What do you call them?
Plants obtained through tissue culture are genetically identical and they are obtained by somatic cells. What do you call them?
Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
Choose the incorrect statement from the following.
Choose the incorrect statement from the following.
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
All the following interactions are mutualism, except:
All the following interactions are mutualism, except:
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
The phenomenon called ‘Apical dominance’ in plants is due to a phytohormone:
The phenomenon called ‘Apical dominance’ in plants is due to a phytohormone:
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
Identify the incorrect statement from the following.
Identify the incorrect statement from the following.
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
In plants, lateral roots arise from:
In plants, lateral roots arise from:
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
Facultative absorption of water from primary urine is influenced by the hormone:
Facultative absorption of water from primary urine is influenced by the hormone:
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
Identify the correct equation for Hardy-Weinberg law.
Identify the correct equation for Hardy-Weinberg law.
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
Elution means:
Elution means:
Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
Lactational amenorrhea:
Lactational amenorrhea:
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