Please wait...

Solution
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
If L, C and R are the inductance, capacitance and resistance respectively, then which of the following does not represent the dimension of frequency?
If L, C and R are the inductance, capacitance and resistance respectively, then which of the following does not represent the dimension of frequency?
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
The displacement-time (x-t) graph of a body is given as



The corresponding velocity-time (v-t) graph will be
The displacement-time (x-t) graph of a body is given as



The corresponding velocity-time (v-t) graph will be
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
If the atom  follows the Bohr model and the radius ofis n times the Bohr radius, then the value of n is
If the atom  follows the Bohr model and the radius ofis n times the Bohr radius, then the value of n is
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation, which of the following is true?

A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation, which of the following is true?

Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
A particle is thrown vertically upward with a speed of u from a tower of height H. The time taken by the particle to hit ground is n times that taken by it to reach the highest point of its path. The relation between H, u and n is
A particle is thrown vertically upward with a speed of u from a tower of height H. The time taken by the particle to hit ground is n times that taken by it to reach the highest point of its path. The relation between H, u and n is
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
The log-log graph between the energy E of an electron and its de-Broglie wavelength λ will be
The log-log graph between the energy E of an electron and its de-Broglie wavelength λ will be
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
In carnot engine, efficiency is 40% at hot reservoir temperature T. For efficiency 50%, what will be the temperature of hot reservoir?
In carnot engine, efficiency is 40% at hot reservoir temperature T. For efficiency 50%, what will be the temperature of hot reservoir?
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
Fundamental frequency of a sonometer wire is n. If the length and diameter of the wire are doubled keeping the tension same, then the new fundamental frequency is
Fundamental frequency of a sonometer wire is n. If the length and diameter of the wire are doubled keeping the tension same, then the new fundamental frequency is
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
A tank is filled with water of density 1 g cm-3 and oil of density 0.9 g cm-3. The height of water layer is 100 cm and of the oil layer is 400 cm. If g = 980 cm s-2, then the velocity of efflux from an opening in the bottom of the tank is
A tank is filled with water of density 1 g cm-3 and oil of density 0.9 g cm-3. The height of water layer is 100 cm and of the oil layer is 400 cm. If g = 980 cm s-2, then the velocity of efflux from an opening in the bottom of the tank is
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
The graph which represents the relation between refractive index μ with wavelength λ is
The graph which represents the relation between refractive index μ with wavelength λ is
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
According to Bohr’s model, the minimum energy (in eV) required to remove an electron from the ground state of doubly ionised Li atom (Z = 3) is
According to Bohr’s model, the minimum energy (in eV) required to remove an electron from the ground state of doubly ionised Li atom (Z = 3) is
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
The moment of inertia of a rod about an axis through its centre and perpendicular to it is ML2(where, M is the mass and L the length of the rod). The rod is bent in the middle to that the two halves make an angle of 600. The moment of inertia of the bent rod about the same asix would be
The moment of inertia of a rod about an axis through its centre and perpendicular to it is ML2(where, M is the mass and L the length of the rod). The rod is bent in the middle to that the two halves make an angle of 600. The moment of inertia of the bent rod about the same asix would be
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
If the ratio of the concentration of electrons to that of holes in a semiconductor is and the ratio of currents is . Then, the ratio os their drift velocity is
If the ratio of the concentration of electrons to that of holes in a semiconductor is and the ratio of currents is . Then, the ratio os their drift velocity is
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
How many NAND gates are used in an OR gate?
How many NAND gates are used in an OR gate?
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
An object is placed on a smooth inclined plane of 1 in l. The horizontal acceleration to be imparted to inclined plane so that, the object is stationary relative to the inclined is given by
An object is placed on a smooth inclined plane of 1 in l. The horizontal acceleration to be imparted to inclined plane so that, the object is stationary relative to the inclined is given by
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
The population inversion in helium-neon laser is produced by
The population inversion in helium-neon laser is produced by
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
For a given circuit, it is observed that the current I is independent of the value of the resistance R6. Then, the resistance values must satisfy

For a given circuit, it is observed that the current I is independent of the value of the resistance R6. Then, the resistance values must satisfy

Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
If eyeis kept at a depth h inside the water of refractive index and viewed outside, then the diameter of circle through which the outer objects become visible, will be
If eyeis kept at a depth h inside the water of refractive index and viewed outside, then the diameter of circle through which the outer objects become visible, will be
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
If a vector A is given as A =, then the angle subtended with the x-axis is
If a vector A is given as A =, then the angle subtended with the x-axis is
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
A uniform chain of length L and mass M overhangs a horizontal table with its two-third part on the table. The friction coefficient between the table and the chain is μ. The work done by the friction during the period, the chain slips off the table is
A uniform chain of length L and mass M overhangs a horizontal table with its two-third part on the table. The friction coefficient between the table and the chain is μ. The work done by the friction during the period, the chain slips off the table is
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
A disc of mass 2 kg and radius 0.2 m is rotating with angular velocity 30 rads-1. What is angular velocity(in rad s-1),  if a mass of 0.25 kg is put on periphery of the disc?
A disc of mass 2 kg and radius 0.2 m is rotating with angular velocity 30 rads-1. What is angular velocity(in rad s-1),  if a mass of 0.25 kg is put on periphery of the disc?
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
If a body have kinetic energy T, moving on a rough horizontal surface stops at distance y. The frictional force exerted on the body is
If a body have kinetic energy T, moving on a rough horizontal surface stops at distance y. The frictional force exerted on the body is
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
The escape velocity from the Earth is 11 kms-1. The escape velocity from a planet having twice the radius and same mean density as that of Earth is
The escape velocity from the Earth is 11 kms-1. The escape velocity from a planet having twice the radius and same mean density as that of Earth is
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
A body weighs 8 g when placed in one pan and 18 g when placed on the other pan of a false balance. If the beam is horizontal when both the pans are empty, then the true weight of the body is
A body weighs 8 g when placed in one pan and 18 g when placed on the other pan of a false balance. If the beam is horizontal when both the pans are empty, then the true weight of the body is
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
If a ray travelling in the direction is incident on a plane mirror. After reflection, the ray travels along the direction. The angle of incidence is
If a ray travelling in the direction is incident on a plane mirror. After reflection, the ray travels along the direction. The angle of incidence is
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
What will be the force acting on a particle moving along a circle of radius R, if its kinetic energy k depends on the distance covered as k = as2?
What will be the force acting on a particle moving along a circle of radius R, if its kinetic energy k depends on the distance covered as k = as2?
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
A sample contains 10-2 kg each of the two substances A and B with half-lives 4 s and 8 s respectively. Their atomic weights are in the ratio of 1:2, the amounts of A and B after an interval of 16s are
A sample contains 10-2 kg each of the two substances A and B with half-lives 4 s and 8 s respectively. Their atomic weights are in the ratio of 1:2, the amounts of A and B after an interval of 16s are
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
Usually laser beams are used to measure long distance because
Usually laser beams are used to measure long distance because
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
Two tunning forks P and Q when set vibration, given 4 beats s-1. If a prong of the fork P is filled, the beats are reduced to 2 beats-1. What is frequency of P, if that of Q is 250 Hz?
Two tunning forks P and Q when set vibration, given 4 beats s-1. If a prong of the fork P is filled, the beats are reduced to 2 beats-1. What is frequency of P, if that of Q is 250 Hz?
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
A parallel plate capacitor of area A, plate separation d and capacitance C is filled with three dielectric materials having dielectric constants k1, k2 and k3 as shown. If a single dielectric material is to be used to have the same capacitance C in the capacitor, then its dielectric costant k is given by

A parallel plate capacitor of area A, plate separation d and capacitance C is filled with three dielectric materials having dielectric constants k1, k2 and k3 as shown. If a single dielectric material is to be used to have the same capacitance C in the capacitor, then its dielectric costant k is given by

Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
A ball is dropped from height h on the ground. If the coefficient of restitution is e, the height to which the ball goes up after it rebounds for the nth time is
A ball is dropped from height h on the ground. If the coefficient of restitution is e, the height to which the ball goes up after it rebounds for the nth time is
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
Permanent magnet has properties retentivity and coercivity respectively,
Permanent magnet has properties retentivity and coercivity respectively,
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
Two circular coils can be arranged in any of the three following situations as shown in figure. Their mutual inductance will be

Two circular coils can be arranged in any of the three following situations as shown in figure. Their mutual inductance will be

Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
A circular disc of radius R rolls without slipping along the horizontal surface with constant velocity v0, We consider a point A on the surface of the disc. Then, the acceleration of the point A is
A circular disc of radius R rolls without slipping along the horizontal surface with constant velocity v0, We consider a point A on the surface of the disc. Then, the acceleration of the point A is
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
The particle is placed at the origin and a force F = kx is acting on it (where, k is a positive constant.) If U (0) = 0, the graph of U (x) versus X will be, (where, U is the potential energy function)
The particle is placed at the origin and a force F = kx is acting on it (where, k is a positive constant.) If U (0) = 0, the graph of U (x) versus X will be, (where, U is the potential energy function)
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
Which of the following process represents γ–decay?
Which of the following process represents γ–decay?
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
In an n-p-n transistor circuit, the collector current is 10 mA. If 90% of the electrons emitted reach the collector
In an n-p-n transistor circuit, the collector current is 10 mA. If 90% of the electrons emitted reach the collector
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
The surface of the metal is illuminated with the light of 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV, the work function of metal is
The surface of the metal is illuminated with the light of 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV, the work function of metal is
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
In an ideal double-slit experiment, when a glass-plate (μ=1.5) of thickness t is introduced in the path of one of the interfering beams (wavelength λ), the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass-plate is
In an ideal double-slit experiment, when a glass-plate (μ=1.5) of thickness t is introduced in the path of one of the interfering beams (wavelength λ), the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass-plate is
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
An electromagnetic wave propagating along North has its electric field vector upwards. Its magnetic field vector point towards
An electromagnetic wave propagating along North has its electric field vector upwards. Its magnetic field vector point towards
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
A charged particle moving in a magnetic field experiences a resultant force
A charged particle moving in a magnetic field experiences a resultant force
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
If g is the acceleration due to gravity at the Earth's surface, the gain of the potential energy of an object of mass m raised from the surface of the Earth to height equal to the radius R of the Earth is
If g is the acceleration due to gravity at the Earth's surface, the gain of the potential energy of an object of mass m raised from the surface of the Earth to height equal to the radius R of the Earth is
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
A mass of 2 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in figure. The mass of the spring and the pan is negligible. When pressed slightly and released the mass executes a SHM. The spring constant is 200 Nm-1, What should be the minimum amplitude of motion, so that the mass gets detached from pan?

[Given, g = 10 m/s2]
A mass of 2 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in figure. The mass of the spring and the pan is negligible. When pressed slightly and released the mass executes a SHM. The spring constant is 200 Nm-1, What should be the minimum amplitude of motion, so that the mass gets detached from pan?

[Given, g = 10 m/s2]
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
Bernoulli’s theorem is a consequence of the law of conservation of
Bernoulli’s theorem is a consequence of the law of conservation of
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
The work of 146 kJ is performed in order to compress one kilomole of a gas adiabatically and in this process the temperature of the gas increases by 7 ºC. The gas is [R =8.3 Jmol-1K-1]
The work of 146 kJ is performed in order to compress one kilomole of a gas adiabatically and in this process the temperature of the gas increases by 7 ºC. The gas is [R =8.3 Jmol-1K-1]
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
A conducting loop carrying a current I is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency to

A conducting loop carrying a current I is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency to

Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
Two springs are joined and attached to a mass of 16 kg. The system is then suspended vertically from a rigid support. The spring constant of the two springs are k1 and k2 respectively. The period of vertical oscillations of the system will be
Two springs are joined and attached to a mass of 16 kg. The system is then suspended vertically from a rigid support. The spring constant of the two springs are k1 and k2 respectively. The period of vertical oscillations of the system will be
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
If one mole of a monoatomic gas is mixed with one mole of a diatomic gas , the value of r for the mixture is
If one mole of a monoatomic gas is mixed with one mole of a diatomic gas , the value of r for the mixture is
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt

The effect of rotation of the Earth on the value of acceleration due to gravity is

The effect of rotation of the Earth on the value of acceleration due to gravity is

Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
A body floats in a liquid contained in a beaker. If the whole system falls under gravity, then the upthrust on the body due to liquid is
A body floats in a liquid contained in a beaker. If the whole system falls under gravity, then the upthrust on the body due to liquid is
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
Which of the following is correct increasing order for the value of ?
Which of the following is correct increasing order for the value of ?
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
What is the structure of XeF6?
What is the structure of XeF6?
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
Lowering of vapour pressure is highest for
Lowering of vapour pressure is highest for
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
The set representing the correct order of ionic radius is
The set representing the correct order of ionic radius is
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
During nuclear explosion one of the products is 90Sr with half-life of 28.1 yr. If 1 μ g of of 90Sr was absorbed in the bones of a newly born body instead of calcium, how much of it will remain after 60 yr, if it is not lost metabolically?
During nuclear explosion one of the products is 90Sr with half-life of 28.1 yr. If 1 μ g of of 90Sr was absorbed in the bones of a newly born body instead of calcium, how much of it will remain after 60 yr, if it is not lost metabolically?
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
NaOH is a strong base. What will be the pH of 5.0×10-2 M NaOH solution? (log 2= 0.3)
NaOH is a strong base. What will be the pH of 5.0×10-2 M NaOH solution? (log 2= 0.3)
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
The enthalpy of combustion for the H2, cyclohexene and cyclohexane are -241, -3800 and -3920 kJ mol-1, respectively. Heat of hydrogenation of cyclohexene is
The enthalpy of combustion for the H2, cyclohexene and cyclohexane are -241, -3800 and -3920 kJ mol-1, respectively. Heat of hydrogenation of cyclohexene is
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
The values for Cr, Mn, Fe and Co are -0.41, +1.57, + 0.77 and 1.97 V, respectively. For which one of these metals the change in oxidation state from + 2 to + 3 is easiest?
The values for Cr, Mn, Fe and Co are -0.41, +1.57, + 0.77 and 1.97 V, respectively. For which one of these metals the change in oxidation state from + 2 to + 3 is easiest?
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
The oxidation numbers of phosphorus in Ba(H2PO2)2 and xenon in Na4XeO6 respectively are
The oxidation numbers of phosphorus in Ba(H2PO2)2 and xenon in Na4XeO6 respectively are
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
A colloidal system having a solid substance as a dispersed phase and a liquid as a dispersion medium is classified as
A colloidal system having a solid substance as a dispersed phase and a liquid as a dispersion medium is classified as
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
In a first reaction, the concentration of the reactant, decreases from 0.8 M to 0.4 M in 15 min. The time taken for the concentration to change from 0.1 M to 0.025 M is
In a first reaction, the concentration of the reactant, decreases from 0.8 M to 0.4 M in 15 min. The time taken for the concentration to change from 0.1 M to 0.025 M is
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
The value of Kc for the dissociation reaction H2(g)2H(g) is 1.2 × 10-42
The value of Kc for the dissociation reaction H2(g)2H(g) is 1.2 × 10-42
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
Ksp of CaSO4 is 4×10-12. CaSO4 is precipitated on mixing equal volumes of the following solutions.
Ksp of CaSO4 is 4×10-12. CaSO4 is precipitated on mixing equal volumes of the following solutions.
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
Which of the following is the correct decreasing order of oxidation state of nitrogen?
Which of the following is the correct decreasing order of oxidation state of nitrogen?
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
Which of the following has highest electron affinity?
Which of the following has highest electron affinity?
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
The shape of XeO2F2 molecule is
The shape of XeO2F2 molecule is
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
The radius of which of the following orbit is same as that of the first Bohr’s orbit of hydrogen atom?
The radius of which of the following orbit is same as that of the first Bohr’s orbit of hydrogen atom?
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
Calculate the osmotic pressure of 0.01 M solution of cane sugar at 300 K
(R = 0.08212 atm degree-1 mol-1)
Calculate the osmotic pressure of 0.01 M solution of cane sugar at 300 K
(R = 0.08212 atm degree-1 mol-1)
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
van der waals’ real gas, acts as an ideal gas at which condition?
van der waals’ real gas, acts as an ideal gas at which condition?
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
Given, = -0.72 V, = -0.42 V. The potential for the cell CrCr3+(0.1 M) Fe2+ (0.01 M)Fe is
Given, = -0.72 V, = -0.42 V. The potential for the cell CrCr3+(0.1 M) Fe2+ (0.01 M)Fe is
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
In a reaction, A + B C, the rate expression is R = k [A][B]2. If the concentration of both the reactant is doubled at constant volume, then the rate of the reaction will be
In a reaction, A + B C, the rate expression is R = k [A][B]2. If the concentration of both the reactant is doubled at constant volume, then the rate of the reaction will be
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
Ionisation energy in group 1A varies in the decreasing order as
Ionisation energy in group 1A varies in the decreasing order as
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
Intramolecular hydrogen bond is present in
Intramolecular hydrogen bond is present in
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
Which one of the following species acts as both Bronsted acid and base?
Which one of the following species acts as both Bronsted acid and base?
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
The reaction,
SO2+O22SO3+ Heat
The equilibrium reaction proceeds in forward direction by
The reaction,
SO2+O22SO3+ Heat
The equilibrium reaction proceeds in forward direction by
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt

Product It is (1 : addition)

Product It is (1 : addition)
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
Teflon is an example of polymer which is a/an
Teflon is an example of polymer which is a/an
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
Which of the following are addition polymers?
Which of the following are addition polymers?
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
Which one is least reactive in a nucleophilic substitution reaction?
Which one is least reactive in a nucleophilic substitution reaction?
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
Red lead is
Red lead is
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
Setting of Plaster of Paris is
Setting of Plaster of Paris is
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
Benzaldehyde reacts with CH3NH2 forming
Benzaldehyde reacts with CH3NH2 forming
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
Which is soluble in NaNO2 and dil. HCl mixture and forming salt?
Which is soluble in NaNO2 and dil. HCl mixture and forming salt?
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
Which among the following will show anisotrophy?
Which among the following will show anisotrophy?
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
An example of a non-stoichiometric compound is
An example of a non-stoichiometric compound is
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
IA solution of D-glucose in water rotates the plane of polarised light
IA solution of D-glucose in water rotates the plane of polarised light
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
Which of the following pairs give positive Tollen’s test?
Which of the following pairs give positive Tollen’s test?
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
Which pair of polymers have similar properties?
Which pair of polymers have similar properties?
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
In the following compound, groups designated as A, B, C will be numbered as
In the following compound, groups designated as A, B, C will be numbered as
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
Which of the following type of forces are present in vulcanised rubber?
Which of the following type of forces are present in vulcanised rubber?
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
Number of esters of the molecular formula C3H6O2 can be
Number of esters of the molecular formula C3H6O2 can be
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
The IUPAC name for
The IUPAC name for
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
The following compound can exhibit
The following compound can exhibit
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
If ∆Hf (H2O) is -286.20 kJ mol-1, then ∆ (OH-) is
If ∆Hf (H2O) is -286.20 kJ mol-1, then ∆ (OH-) is
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
1 mole of gas occupying 3 L volume is expanded against a constant external pressure of 1 atm to a volume of 15 L. The work done by a system is equal to
1 mole of gas occupying 3 L volume is expanded against a constant external pressure of 1 atm to a volume of 15 L. The work done by a system is equal to
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
Which is not an electrophile?
Which is not an electrophile?
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
Concentrated HNO3 forms in the presence of
Concentrated HNO3 forms in the presence of
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
TEL is a compound used as
TEL is a compound used as
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
Aldol condensation reaction is not given by
Aldol condensation reaction is not given by
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
Petroleum is obtained from water gas, name of the reaction involved ise
Petroleum is obtained from water gas, name of the reaction involved ise
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
Let Z denotes the set of all integers and A = {(a,b) : a2 + 3b2 = 28, a, b Є Z} and B = {(a, b) : a < b, a, b Є Z}. Then, the number of elements in AB is
Let Z denotes the set of all integers and A = {(a,b) : a2 + 3b2 = 28, a, b Є Z} and B = {(a, b) : a < b, a, b Є Z}. Then, the number of elements in AB is
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
If two sets A and B are having 39 elements in common, then the number of elements common to each of the sets A×B and B×A are
If two sets A and B are having 39 elements in common, then the number of elements common to each of the sets A×B and B×A are
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
The domain of the function f(x) = is
The domain of the function f(x) = is
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
If a1, a2, a3, ....are terms of AP such that a1+a5+a10+a15+a20+a24 = 225, then the sum of first 24 terms is
If a1, a2, a3, ....are terms of AP such that a1+a5+a10+a15+a20+a24 = 225, then the sum of first 24 terms is
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
A cricket team plays x number of matches in winter and wins m matches. Further, it plays y number of matches in summer and wins n matches. Its winning probability in both the seasons is
A cricket team plays x number of matches in winter and wins m matches. Further, it plays y number of matches in summer and wins n matches. Its winning probability in both the seasons is
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
The probabilities that Mr. A and Mr. B will die within a year are and respectively, then the probability that only one of them will be alive at the end of the year, is
The probabilities that Mr. A and Mr. B will die within a year are and respectively, then the probability that only one of them will be alive at the end of the year, is
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
The number of solutions of the system of equations 2x +y –z = 7, x – 3y + 2z = 1 and x + 4y – 3z = 5 is
The number of solutions of the system of equations 2x +y –z = 7, x – 3y + 2z = 1 and x + 4y – 3z = 5 is
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
The maximum resultant of two forces is 2P and the minimum resultant is 2Q, the two forces are at right angles, then the resultant is
The maximum resultant of two forces is 2P and the minimum resultant is 2Q, the two forces are at right angles, then the resultant is
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
In a right angle ∆ABC, A= 90 º and sides a, b, c are respectively 10 cm, 8 cm, and 6 cm. If a force F has moments 0, 64 and 36 N-cm respectively about vertices A, B and C, then magnitude of F is
In a right angle ∆ABC, A= 90 º and sides a, b, c are respectively 10 cm, 8 cm, and 6 cm. If a force F has moments 0, 64 and 36 N-cm respectively about vertices A, B and C, then magnitude of F is
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
The maximum horizontal range of a ball projected with a velocity of 40 m/s is (take g = 9.8 m/s2)
The maximum horizontal range of a ball projected with a velocity of 40 m/s is (take g = 9.8 m/s2)
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
A train of length 100 m travelling at 20 m/s overtakes another of length 200 m travelling at 10 m/s. The time taken by the first train to pass the second train is
A train of length 100 m travelling at 20 m/s overtakes another of length 200 m travelling at 10 m/s. The time taken by the first train to pass the second train is
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
If a ≤ 3cos x + 5 sin ≤b for all x, then [a, b] is
If a ≤ 3cos x + 5 sin ≤b for all x, then [a, b] is
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
If sin2θ, cosθ and sec θ are in GP, then θ is equal to (nZ)
If sin2θ, cosθ and sec θ are in GP, then θ is equal to (nZ)
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
A house of height 100 m substends a right angle at the window of an opposite house. If the height of the window is 64 m, then the distance between the two houses is
A house of height 100 m substends a right angle at the window of an opposite house. If the height of the window is 64 m, then the distance between the two houses is
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
If A and B are two fixed points, then the locus of a point which moves in such a way that the APBis a right angle, is
If A and B are two fixed points, then the locus of a point which moves in such a way that the APBis a right angle, is
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
The point on the line 4x + 3y = 5, which is equidistant from (1,2) and (3,4) is
The point on the line 4x + 3y = 5, which is equidistant from (1,2) and (3,4) is
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
If OA and OB are the tangents to the circle x2 + y2 – 6x – 8y + 21 = 0 drawn from the origin O, then AB is equal to
If OA and OB are the tangents to the circle x2 + y2 – 6x – 8y + 21 = 0 drawn from the origin O, then AB is equal to
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
The point of the contact of the tangent to the parabola y2 = 4ax which makes an angle of 30 º eith X-axis, if
The point of the contact of the tangent to the parabola y2 = 4ax which makes an angle of 30 º eith X-axis, if
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
In an ellipse, if the joining focus to the extremities of the minor axis form an equilateral triangle with the minor axis, then the eccentricity of the ellipse is
In an ellipse, if the joining focus to the extremities of the minor axis form an equilateral triangle with the minor axis, then the eccentricity of the ellipse is
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
The equations of the tangents drawn at the ends of the major axis of the ellipse 9x2 + 5y2 – 30y = 0 are
The equations of the tangents drawn at the ends of the major axis of the ellipse 9x2 + 5y2 – 30y = 0 are
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
For the equation 10z2–4iz–m = 0, where z is a complex variable and i =, which of the following is true?
For the equation 10z2–4iz–m = 0, where z is a complex variable and i =, which of the following is true?
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
The nth term of the series 5+7+13+31+85+....is
The nth term of the series 5+7+13+31+85+....is
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
The last two digits of the number 3400 are
The last two digits of the number 3400 are
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
If = 0 then x is equal to
If = 0 then x is equal to
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
Let R = {(1,1) (1,3), (4,2), (2,4), (2,3),(3,1)} be a relation on the set A = {1, 2, 3, 4}. The relation R is
Let R = {(1,1) (1,3), (4,2), (2,4), (2,3),(3,1)} be a relation on the set A = {1, 2, 3, 4}. The relation R is
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
If α= sin-1(cos(sin-1x)) and = β = cos-1(sin(cos-1x)), then tanα.tanβ is equal to
If α= sin-1(cos(sin-1x)) and = β = cos-1(sin(cos-1x)), then tanα.tanβ is equal to
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
At which point the function f(x)=, where [.] is greatest integer function, is discontinuous?
At which point the function f(x)=, where [.] is greatest integer function, is discontinuous?
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
The function y = |2sinx| is continuous for any x but it is not differentiable at
The function y = |2sinx| is continuous for any x but it is not differentiable at
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
If y = elog (1+x+x2+x3+....) , where|x|<1, then is equal to
If y = elog (1+x+x2+x3+....) , where|x|<1, then is equal to
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
If two sides of a triangle are given, then the area of the triangle will be maximum, if the angle between the given sides is
If two sides of a triangle are given, then the area of the triangle will be maximum, if the angle between the given sides is
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
is equal to
is equal to
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
If sin-1xcos-1x dx = f-1(x)

,then
If sin-1xcos-1x dx = f-1(x)

,then
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
The slopes of the common tangents of the ellipse =1 and the circle x2 + y2 = 3 are
The slopes of the common tangents of the ellipse =1 and the circle x2 + y2 = 3 are
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
If the vectors a and b are linearly independent satisfying ( tanθ +1) a + ( secθ -2)b =0, then the value of θ is
If the vectors a and b are linearly independent satisfying ( tanθ +1) a + ( secθ -2)b =0, then the value of θ is
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
If a and b are two unit vectors inclined at an angle , then {a×(b+a×b)}. b is equal to
If a and b are two unit vectors inclined at an angle , then {a×(b+a×b)}. b is equal to
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
Let u, v and w be such that |u|=1, |v|=3 and |w|=2. If the projection of v along u is equal to that of w along u and vectors v and w are perpendicular to each other, then|u-v+w|equals
Let u, v and w be such that |u|=1, |v|=3 and |w|=2. If the projection of v along u is equal to that of w along u and vectors v and w are perpendicular to each other, then|u-v+w|equals
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
The solution of the differential equation = is
The solution of the differential equation = is
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
The solution of the differential equation =0 is
The solution of the differential equation =0 is
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
The part of straight line y =x between x = 1 and x = 2 is revolved about X-axis, then the curved surface area of the solid thus generated is
The part of straight line y =x between x = 1 and x = 2 is revolved about X-axis, then the curved surface area of the solid thus generated is
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
n is equal to
n is equal to
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
If
, then the value of k is
If
, then the value of k is
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
A body of 6 kg rests in limiting equilibrium on an inclined plane whose slope is 30 º. If the plane is raised to slope of 60 º, then force (in kg-wt) along the plane required to support it is
A body of 6 kg rests in limiting equilibrium on an inclined plane whose slope is 30 º. If the plane is raised to slope of 60 º, then force (in kg-wt) along the plane required to support it is
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
If the line x + 2ky + 3 = 0 is a diameter of the circle x2 + y2 – 6x + 2y = 0, then k is equal to
If the line x + 2ky + 3 = 0 is a diameter of the circle x2 + y2 – 6x + 2y = 0, then k is equal to
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
If the angles A, B, C of a triangle are in AP and the sides a, b, c opposite to these angles are in GP, then a2, b2, c2 are in
If the angles A, B, C of a triangle are in AP and the sides a, b, c opposite to these angles are in GP, then a2, b2, c2 are in
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
The value of
cos + cos + cos + cos +cos + cos +cos is
The value of
cos + cos + cos + cos +cos + cos +cos is
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
If sinx + siny=0 = cos x + cosy, then, cos2x + cos 2y is equal to
If sinx + siny=0 = cos x + cosy, then, cos2x + cos 2y is equal to
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
If f(x)= ,then the points of local maxima for the function f(x) are
If f(x)= ,then the points of local maxima for the function f(x) are
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
The adjacent side of a rectangle with given parameter as 200 cm and enclosing maximum area are
The adjacent side of a rectangle with given parameter as 200 cm and enclosing maximum area are
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
All the value of m for which both the roots of the equation x2 – 2mx + m2 – 1 = 0 are greater than -2 but less than 4, lie in the interval
All the value of m for which both the roots of the equation x2 – 2mx + m2 – 1 = 0 are greater than -2 but less than 4, lie in the interval
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
The value of 4+2(1+2)log2+ (log2)3+(log2)3+ .... is
The value of 4+2(1+2)log2+ (log2)3+(log2)3+ .... is
Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Click on Allow to receive notifications
×
Open Now