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Solution
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
The path length of oscillation of simple pendulum of length 1 meter is 16 cm. Its maximum velocity is (g = π2m∕s2)
©
The path length of oscillation of simple pendulum of length 1 meter is 16 cm. Its maximum velocity is (g = π2m∕s2)
©
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
A vessel completely filled with water has holes ‘A’ and ‘B’ at depths ‘h' and ‘3h’ from the top respectively. Hole ‘A’ is a square of side ‘L’ and ‘B’ is circle of radius ‘r' The water flowing out per second from both the holes is same. Then ‘ L’ is equal to
©
A vessel completely filled with water has holes ‘A’ and ‘B’ at depths ‘h' and ‘3h’ from the top respectively. Hole ‘A’ is a square of side ‘L’ and ‘B’ is circle of radius ‘r' The water flowing out per second from both the holes is same. Then ‘ L’ is equal to
©
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
A transistor is used as a common emitter amplifier with a load resistance 2 KΩ. The input resistance is 150 Ω. Base current is changed by 20 µA which 7. results in a change in collector current by 1.5 mA. The voltage gain of the amplifier is
©
A transistor is used as a common emitter amplifier with a load resistance 2 KΩ. The input resistance is 150 Ω. Base current is changed by 20 µA which 7. results in a change in collector current by 1.5 mA. The voltage gain of the amplifier is
©
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
A dies has mass ‘M ’ and radius ‘R’. How much tangential force should be applied to the rim of the disc so as to rotate with angular velocity ‘ω’ in times ‘t’ ?
©
A dies has mass ‘M ’ and radius ‘R’. How much tangential force should be applied to the rim of the disc so as to rotate with angular velocity ‘ω’ in times ‘t’ ?
©
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
A circular coil carrying current ‘I’ has radius ‘R’ and magnetic field at the centre is ‘B’. At what distance from the centre along the axis of the magnetic field will be
R
8
 ?
©
A circular coil carrying current ‘I’ has radius ‘R’ and magnetic field at the centre is ‘B’. At what distance from the centre along the axis of the magnetic field will be
R
8
 ?
©
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
Two light waves of intensities ‘I1 ’ and ‘I2’ having same frequency pass through same medium at a time in same direction and interface. The sum of the minimum and maximum intensities is
©
Two light waves of intensities ‘I1 ’ and ‘I2’ having same frequency pass through same medium at a time in same direction and interface. The sum of the minimum and maximum intensities is
©
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
An alternative voltage e = 200√2 sin (100 t) volt is connected to 1 µF capacitor through a.c. ammeter. The reading of ammeter is
©
An alternative voltage e = 200√2 sin (100 t) volt is connected to 1 µF capacitor through a.c. ammeter. The reading of ammeter is
©
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
In the following network, the current flowing through 15Ω resistance is B


In the following network, the current flowing through 15Ω resistance is B
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
The angle made by incident ray of light with normal of the reflecting surface is called
©
The angle made by incident ray of light with normal of the reflecting surface is called
©
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
In non uniform circular motion, the ratio of tangential to radius acceleration is (r = radius of circle, v = speed of the particle, α = angular acceleration)
©
In non uniform circular motion, the ratio of tangential to radius acceleration is (r = radius of circle, v = speed of the particle, α = angular acceleration)
©
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
If numerical aperture of a microscope is increased then its
©
If numerical aperture of a microscope is increased then its
©
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
In amplitude modulation
©
In amplitude modulation
©
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
If Mz = magnetization of a paramagnetic sample, B = external magnetic field, T = absolute temperature, C = curie constant then according to Curie’s law in Magnetism, the correct relation is
©
If Mz = magnetization of a paramagnetic sample, B = external magnetic field, T = absolute temperature, C = curie constant then according to Curie’s law in Magnetism, the correct relation is
©
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
An electron of stationary hydrogen atom jumps from 4th energy level to ground level. The velocity that the photon acquired as a result of electron transition will be (h = Planck’s constant, R = Rydberg’s constant, m = mass of photon)
©
An electron of stationary hydrogen atom jumps from 4th energy level to ground level. The velocity that the photon acquired as a result of electron transition will be (h = Planck’s constant, R = Rydberg’s constant, m = mass of photon)
©
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
A metal wire of density ‘ρ’ floats on water surface horizontally. If it is NOT to sink in water then maximum radius of wire is proportional to (T = surface of water, g = gravitational acceleration)
©
A metal wire of density ‘ρ’ floats on water surface horizontally. If it is NOT to sink in water then maximum radius of wire is proportional to (T = surface of water, g = gravitational acceleration)
©
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
A sphere of mass ‘m ’ moving with velocity 'v' collides head-on another sphere of same mass which is at rest. The ratio of final velocity of second sphere to the initial velocity of the first sphere is (e is coefficient of restitution and collision is inelastic)
©
A sphere of mass ‘m ’ moving with velocity 'v' collides head-on another sphere of same mass which is at rest. The ratio of final velocity of second sphere to the initial velocity of the first sphere is (e is coefficient of restitution and collision is inelastic)
©
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
For a particle performing linear S.H.M., its average speed over one oscillation is (a = amplitude of S.H.M., n = frequency of oscillation)
©
For a particle performing linear S.H.M., its average speed over one oscillation is (a = amplitude of S.H.M., n = frequency of oscillation)
©
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
An ideal transformer converts 220 V a.c. to 3.3 kV a.c. to transmit a power of 4.4 kW. If primary coil has 600 turns, then alternating current in secondary coil is
©
An ideal transformer converts 220 V a.c. to 3.3 kV a.c. to transmit a power of 4.4 kW. If primary coil has 600 turns, then alternating current in secondary coil is
©
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
A conducing wire has length ‘L1 ’ and diameter ‘d1’. After stretching the same wire length becomes ‘L2’ and diameter ‘d2’ The ratio of resistances before and after stretching is
©
A conducing wire has length ‘L1 ’ and diameter ‘d1’. After stretching the same wire length becomes ‘L2’ and diameter ‘d2’ The ratio of resistances before and after stretching is
©
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
The molar specific heat of an ideal gas at constant pressure and constant volume is ‘CP ’ and ‘CV’ respectively. If ‘R’ is the universal gas constant and the ratio of ‘CP’ to ‘CV’ is ‘γ’ then CV =
©
The molar specific heat of an ideal gas at constant pressure and constant volume is ‘CP ’ and ‘CV’ respectively. If ‘R’ is the universal gas constant and the ratio of ‘CP’ to ‘CV’ is ‘γ’ then CV =
©
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
In a capillary tube having area cross-section ‘A’ water rises to a height ‘h ’. If cross-sectional area is reduced to
A
9
 , the rise of water in the capillary tube is
©
In a capillary tube having area cross-section ‘A’ water rises to a height ‘h ’. If cross-sectional area is reduced to
A
9
 , the rise of water in the capillary tube is
©
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
With forward biased mode, the p-n junction diode
©
With forward biased mode, the p-n junction diode
©
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
An alternating electric field of frequency 'υ' is applied across the dees (radius R) of a cyclotron to accelerate protons (mass m). The operating magnetic field ‘B’ used and K.E. of the proton beam produced by it are respectively (e = charge on proton)
©
An alternating electric field of frequency 'υ' is applied across the dees (radius R) of a cyclotron to accelerate protons (mass m). The operating magnetic field ‘B’ used and K.E. of the proton beam produced by it are respectively (e = charge on proton)
©
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
A ray of light is incident normally on a glass slab of thickness 5 cm and refractive index 1.6. The time taken to travel by a from source of slab is same as to travel through glass slab. The distance of source from the surface is
A ray of light is incident normally on a glass slab of thickness 5 cm and refractive index 1.6. The time taken to travel by a from source of slab is same as to travel through glass slab. The distance of source from the surface is
©
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
A string is vibrating in its fifth overtone between two rigid supports 2.4 m apart. The distance between successive node and antinode is
©
A string is vibrating in its fifth overtone between two rigid supports 2.4 m apart. The distance between successive node and antinode is
©
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
If
→
A
=3
^
i
−2
^
j
+
^
k
 ,
→
B
=
^
i
−3
^
j
+5
^
k
 and
→
C
=2
^
i
+
^
j
−4
^
k
 form a right angled triangle then out of the following which one is satisfied ?
©
If
→
A
=3
^
i
−2
^
j
+
^
k
 ,
→
B
=
^
i
−3
^
j
+5
^
k
 and
→
C
=2
^
i
+
^
j
−4
^
k
 form a right angled triangle then out of the following which one is satisfied ?
©
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
A square frame ABCD is formed by four identical rods each of mass ‘m ’ and length ‘l' . This frame is in X-Y plane such that side AB coincides with X-axis and side AD along Y-axis.The moment of inertia of the frame about X-axis is
A square frame ABCD is formed by four identical rods each of mass ‘m ’ and length ‘l' . This frame is in X-Y plane such that side AB coincides with X-axis and side AD along Y-axis.The moment of inertia of the frame about X-axis is
©
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
A unit vector is represented as (0.8
^
i
−b
^
j
+0.4
^
k
). Hence the value of ‘b’ must be
©
A unit vector is represented as (0.8
^
i
−b
^
j
+0.4
^
k
). Hence the value of ‘b’ must be
©
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
Magnetic susceptibility for a paramagnetic and diamagnetic materials is respectively
©
Magnetic susceptibility for a paramagnetic and diamagnetic materials is respectively
©
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
A mass is suspended from a vertical spring which is executing S.H.M. of frequency 5 Hz. The spring is unstretched at the highest point of oscillation. Maximum speed of the mass is [acceleration due to gravity g = 10 m/s2]
©
A mass is suspended from a vertical spring which is executing S.H.M. of frequency 5 Hz. The spring is unstretched at the highest point of oscillation. Maximum speed of the mass is [acceleration due to gravity g = 10 m/s2]
©
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
The moment of inertia of a ring about an axis passing through the centre and perpendicular to its plane is ‘I ’. It is rotating with angular velocity ‘ω' . Another identical ring is gently placed on it so that their centres coincide. If both the rings are rotating about the same axis then loss in kinetic energy is
©
The moment of inertia of a ring about an axis passing through the centre and perpendicular to its plane is ‘I ’. It is rotating with angular velocity ‘ω' . Another identical ring is gently placed on it so that their centres coincide. If both the rings are rotating about the same axis then loss in kinetic energy is
©
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
A bomb at rest explodes into 3 parts of same mass. The momentum of two parts is -3P
^
i
 and 2P
^
j
 respectively. The magnitude of momentum of the third part is
A bomb at rest explodes into 3 parts of same mass. The momentum of two parts is -3P
^
i
 and 2P
^
j
 respectively. The magnitude of momentum of the third part is
©
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
In a photocell, frequency of incident radiation is increased by keeping other factors constant (v > v0), the stopping potential
©
In a photocell, frequency of incident radiation is increased by keeping other factors constant (v > v0), the stopping potential
©
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
A mass attached to one end of a string crosses top-most point on a vertical circle with critical speed. Its centripetal acceleration when string becomes horizontal will be (g = gravitational acceleration)
©
A mass attached to one end of a string crosses top-most point on a vertical circle with critical speed. Its centripetal acceleration when string becomes horizontal will be (g = gravitational acceleration)
©
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
The expression for electric field intensity at a point outside uniformly charged thin plane sheet is (d is the distance of point from plane sheet)
©
The expression for electric field intensity at a point outside uniformly charged thin plane sheet is (d is the distance of point from plane sheet)
©
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
W hen source of sound moves towards a stationary observer, the wavelength of sound received by him
©
W hen source of sound moves towards a stationary observer, the wavelength of sound received by him
©
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
The deflection in galvanometer falls to (
1
4
)th when it is shunted by 3Ω. If additional shunt of 2Ω is connected to earlier shunt, the deflection in galvanometer falls to
©
The deflection in galvanometer falls to (
1
4
)th when it is shunted by 3Ω. If additional shunt of 2Ω is connected to earlier shunt, the deflection in galvanometer falls to
©
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
A body is thrown from the surface of the earth with velocity ‘u ’ m/s. The maximum height in m above the surface of the earth upto which it will reach is (R=radius of earth, g = acceleration due to gravity)
©
A body is thrown from the surface of the earth with velocity ‘u ’ m/s. The maximum height in m above the surface of the earth upto which it will reach is (R=radius of earth, g = acceleration due to gravity)
©
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
A series combination of N1 capacitors (each of capacity C1) is charged to potential difference ‘3 V' . Another parallel combination of N2 capacitors (each of capacity C2) is charged to potential difference ‘V ’. The total energy stored in both the combinations is same. The value of C1 in terms of C2 is
©
A series combination of N1 capacitors (each of capacity C1) is charged to potential difference ‘3 V' . Another parallel combination of N2 capacitors (each of capacity C2) is charged to potential difference ‘V ’. The total energy stored in both the combinations is same. The value of C1 in terms of C2 is
©
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
Heat energy is incident on the surface at the rate of 1000 J/min. If coefficient of absorption is 0.8 and coefficient of reflection is 0.1 then heat energy transmitted by the surface in 5 minutes is
©
Heat energy is incident on the surface at the rate of 1000 J/min. If coefficient of absorption is 0.8 and coefficient of reflection is 0.1 then heat energy transmitted by the surface in 5 minutes is
©
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
Two metal wires ‘P’ and ‘Q’ of same length and material are stretched by same load. Their masses are in the ratio m1:m2. The ratio of elongation of wire ‘P’ to that of ‘Q’ is
©
Two metal wires ‘P’ and ‘Q’ of same length and material are stretched by same load. Their masses are in the ratio m1:m2. The ratio of elongation of wire ‘P’ to that of ‘Q’ is
©
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
Let x = [
a2b2
c
] be the physical quantity. If the percentage error in the measurement of physical quantities a, b and c is 2, 3 and 4 percent respectively then percentage error in the measurement of x is
©
Let x = [
a2b2
c
] be the physical quantity. If the percentage error in the measurement of physical quantities a, b and c is 2, 3 and 4 percent respectively then percentage error in the measurement of x is
©
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
Following graphs show the variation of stopping potential corresponding to the frequency of incident radiation (F) for a given metal. The correct variation is shown in graph (v0 = Threshold frequency)


Following graphs show the variation of stopping potential corresponding to the frequency of incident radiation (F) for a given metal. The correct variation is shown in graph (v0 = Threshold frequency)
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
In compound microscope, the focal length and aperture of the objective used is respectively
©
In compound microscope, the focal length and aperture of the objective used is respectively
©
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
The energy of an electron having de-Broglie wavelength ‘λ’ is (h = Plank’s constant, m = mass of electron)
©
The energy of an electron having de-Broglie wavelength ‘λ’ is (h = Plank’s constant, m = mass of electron)
©
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
‘n’ number of waves are produced on a string in 0.5 second. Now the tension in the string is doubled (Assume length and radius constant), the number of waves produced in 0.5 second for the same harmonic will be
©
‘n’ number of waves are produced on a string in 0.5 second. Now the tension in the string is doubled (Assume length and radius constant), the number of waves produced in 0.5 second for the same harmonic will be
©
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
The increase in energy of a metal bar of length ‘L’ and cross-sectional area ‘A’ when compressed with a load ‘M ’ along its length is (Y = Young’s modulus of the material of metal bar)
©
The increase in energy of a metal bar of length ‘L’ and cross-sectional area ‘A’ when compressed with a load ‘M ’ along its length is (Y = Young’s modulus of the material of metal bar)
©
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
The ratio of magnetic fields due to a bar magnet at the two axial points P1 and P2 which are separated from each other by 10 cm is 25 : 2. Points P1 is situated at 10 cm from the centre of the magnet. Magnetic length of the bar magnet is (Points P1 and P2 are on the same side of magnet and distance of P2 from the centre is greater than distance of P1 from the centre of magnet)
©
The ratio of magnetic fields due to a bar magnet at the two axial points P1 and P2 which are separated from each other by 10 cm is 25 : 2. Points P1 is situated at 10 cm from the centre of the magnet. Magnetic length of the bar magnet is (Points P1 and P2 are on the same side of magnet and distance of P2 from the centre is greater than distance of P1 from the centre of magnet)
©
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
A satellite is revolving in a circular orbit at a height ‘h ’ above the surface of the earth of radius ‘R’. The speed of the satellite in its orbit is one-fourth the escape velocity from the surface of the earth. The relation between ‘h’ and ‘R’ is
©
A satellite is revolving in a circular orbit at a height ‘h ’ above the surface of the earth of radius ‘R’. The speed of the satellite in its orbit is one-fourth the escape velocity from the surface of the earth. The relation between ‘h’ and ‘R’ is
©
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
A pipe closed at one end has length 83 cm. The number of possible natural oscillations of air column whose frequencies lie below 1000 Hz are (velocity of sound in air = 332 m/s)
©
A pipe closed at one end has length 83 cm. The number of possible natural oscillations of air column whose frequencies lie below 1000 Hz are (velocity of sound in air = 332 m/s)
©
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
A certain reaction occurs in two steps as
(i) 2SO2(g) + 2NO2(g) → 2SO3(g)+ 2NO(g)
(ii) 2NO(g) + O2 (g) → 2NO2(g) In the reaction
©
A certain reaction occurs in two steps as
(i) 2SO2(g) + 2NO2(g) → 2SO3(g)+ 2NO(g)
(ii) 2NO(g) + O2 (g) → 2NO2(g) In the reaction
©
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
Which among the following equations represents the first law of thermodynamics under isobaric conditions ?
©
Which among the following equations represents the first law of thermodynamics under isobaric conditions ?
©
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
During galvanization of iron, which metal is used for coating iron surface ?
©
During galvanization of iron, which metal is used for coating iron surface ?
©
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
Formation of PCl3 is explained on the basis of what hybridisation of phosphorus atom ?
©
Formation of PCl3 is explained on the basis of what hybridisation of phosphorus atom ?
©
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
Identify the element that forms amphoteric oxide,
©
Identify the element that forms amphoteric oxide,
©
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
Identify the product ‘C’ in the following reaction.
Aniline
(CH3CH)2O
→
Pyridine
 A
(Br2)
→
CH3COOH
 B
H+‌or‌O‌H−
→
 C
©
Identify the product ‘C’ in the following reaction.
Aniline
(CH3CH)2O
→
Pyridine
 A
(Br2)
→
CH3COOH
 B
H+‌or‌O‌H−
→
 C
©
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
Identify the functional group that has electron donating inductive effect.
©
Identify the functional group that has electron donating inductive effect.
©
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
Which among the following metals crystallise as a simple cube ?
©
Which among the following metals crystallise as a simple cube ?
©
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
W hich among the following oxoacids of phosphorus shows a tendency of disproportionation ?
©
W hich among the following oxoacids of phosphorus shows a tendency of disproportionation ?
©
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
What is the oxidation number of gold in the complex [AuCl4]1− ?
©
What is the oxidation number of gold in the complex [AuCl4]1− ?
©
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
Which symbol replaces the unit of atomic mass, amu?
©
Which symbol replaces the unit of atomic mass, amu?
©
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
Which of the following compounds reacts immediately with Lucas reagent ?
©
Which of the following compounds reacts immediately with Lucas reagent ?
©
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
What is the catalyst used for oxidation of SO2 to SO3 in lead chamber process for manufacturer of sulphuric acid ?
©
What is the catalyst used for oxidation of SO2 to SO3 in lead chamber process for manufacturer of sulphuric acid ?
©
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
The number of moles of electrons passed when current of 2 A is passed through a solution of electrolyte for 20 minutes is
©
The number of moles of electrons passed when current of 2 A is passed through a solution of electrolyte for 20 minutes is
©
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
The molarity of urea (molar mass 60 g mol-1) solution by dissolving 15 g of urea in 500 cm3 of water is
©
The molarity of urea (molar mass 60 g mol-1) solution by dissolving 15 g of urea in 500 cm3 of water is
©
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
Which carbon atom of deoxy Ribose sugar in DNA does NOT contain −
|
C
|
− OH bond ?
©
Which carbon atom of deoxy Ribose sugar in DNA does NOT contain −
|
C
|
− OH bond ?
©
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
Which of the following carboxylic acids is most reactive towards esterification ?
©
Which of the following carboxylic acids is most reactive towards esterification ?
©
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
Molarity is
©
Molarity is
©
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
Which of the followings is a tricarboxylic acid ?
©
Which of the followings is a tricarboxylic acid ?
©
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
W hat is the num ber of donor atom s in dimethylglyoximato ligand ?
W hat is the num ber of donor atom s in dimethylglyoximato ligand ?
©
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
In which substance does nitrogen exhibit the lowest oxidation state ?
©
In which substance does nitrogen exhibit the lowest oxidation state ?
©
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
Which of the following is most reactive towards addition reaction of hydrogen cyanide to form corresponding cyanohydrin ?
©
Which of the following is most reactive towards addition reaction of hydrogen cyanide to form corresponding cyanohydrin ?
©
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
The most basic hydroxide from following is
©
The most basic hydroxide from following is
©
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
What is the SI unit of density ?
©
What is the SI unit of density ?
©
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
Which of the following compounds does NOT undergo haloform reaction ?
©
Which of the following compounds does NOT undergo haloform reaction ?
©
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
Two moles of an idea gas are allowed to expand from a volume of 10 dm3 to 2m3 at 300 K against a pressure of 101.325 KPa. Calculate the work done.
©
Two moles of an idea gas are allowed to expand from a volume of 10 dm3 to 2m3 at 300 K against a pressure of 101.325 KPa. Calculate the work done.
©
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
In which among the following solids, Schottky defect is NOT observed ?
©
In which among the following solids, Schottky defect is NOT observed ?
©
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
What are the products of auto-photolysis of water ?
©
What are the products of auto-photolysis of water ?
©
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
Bauxite, the ore of aluminium, is purified by which process ?
©
Bauxite, the ore of aluminium, is purified by which process ?
©
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
Phenol in presence of sodium hydroxide reacts with chloroform to form salicylaldehyde. The reaction is known as
©
Phenol in presence of sodium hydroxide reacts with chloroform to form salicylaldehyde. The reaction is known as
©
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
Which among the following elements of group-2 exhibits anomalous properties ?
©
Which among the following elements of group-2 exhibits anomalous properties ?
©
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
Excess of ammonia with sodium hypochloride solution in the presence of glue or gelatine gives
©
Excess of ammonia with sodium hypochloride solution in the presence of glue or gelatine gives
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Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
What is the density of solution of sulphuric acid used as an electrolyte in lead accumulator ?
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What is the density of solution of sulphuric acid used as an electrolyte in lead accumulator ?
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Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
Which of the following polymers is used to manufacture clothes for firefighters ?
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Which of the following polymers is used to manufacture clothes for firefighters ?
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Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
Which elements is obtained in the pure form by van Arkel method ?
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Which elements is obtained in the pure form by van Arkel method ?
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Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
Which of the following is NOT a tranquilizer ?
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Which of the following is NOT a tranquilizer ?
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Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
Conversion of hexane into benzene involves the reaction of
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Conversion of hexane into benzene involves the reaction of
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Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
The element that does NOT exhibit allotropy is
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The element that does NOT exhibit allotropy is
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Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
Which of the following reactions is used to prepare aryl fluorides from diazonium salts and fluoroboric acid ?
Which of the following reactions is used to prepare aryl fluorides from diazonium salts and fluoroboric acid ?
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
The correct relation between elevation ofboiling point and mass of solute is
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The correct relation between elevation ofboiling point and mass of solute is
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Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
Which among the group -1 5 elements does NOT exists as tetra atomic molecule ?
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Which among the group -1 5 elements does NOT exists as tetra atomic molecule ?
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Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
Identify the monosaccharide containing only one asymmetric carbon atom in its molecule.
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Identify the monosaccharide containing only one asymmetric carbon atom in its molecule.
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Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
Identify the oxidation states of titanium (Z = 22) and copper (Z = 29) in their colourless compounds.
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Identify the oxidation states of titanium (Z = 22) and copper (Z = 29) in their colourless compounds.
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Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
Arenes on treatments with chlorine in presence of ferric chloride as a catalyst undergo what type of reaction ?
Arenes on treatments with chlorine in presence of ferric chloride as a catalyst undergo what type of reaction ?
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
In case of R, S configuration the group having highest priority is
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In case of R, S configuration the group having highest priority is
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Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
Lactic acid and glycollic acid are the monomers used for preparation of polymer
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Lactic acid and glycollic acid are the monomers used for preparation of polymer
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Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
What is the geometry of water molecule ?
What is the geometry of water molecule ?
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Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
With which halogen the reactions, of alkanes are explosive ?
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With which halogen the reactions, of alkanes are explosive ?
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Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
Calculate the work done during combustion of 0.138 kg of ethanol, C2H5OH(l)at 300 K. Given: R = 8.314 Jk−1mol−1 molar mass of ethanol = 46 g mol−1.
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Calculate the work done during combustion of 0.138 kg of ethanol, C2H5OH(l)at 300 K. Given: R = 8.314 Jk−1mol−1 molar mass of ethanol = 46 g mol−1.
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Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
Slope of the straight line obtained by plotting log10k against represents what term ?
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Slope of the straight line obtained by plotting log10k against represents what term ?
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