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Solution
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Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
A capacitor of 2 µF charged as shown in the figure. When the Switch S is turned to position 2, the percentage of its stored energy dissipated is
A capacitor of 2 µF charged as shown in the figure. When the Switch S is turned to position 2, the percentage of its stored energy dissipated is
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
To get output 1 for the following circuit, the correct choice for the input is
To get output 1 for the following circuit, the correct choice for the input is
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of Emf is
A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of Emf is
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
When a metallic surface is illuminated with radiation of wavelength , the stopping potential is V. If the same surface is illuminated with radiation of wavelength 2, the stopping potential is . The threshold wavelength for the metallic surface is
When a metallic surface is illuminated with radiation of wavelength , the stopping potential is V. If the same surface is illuminated with radiation of wavelength 2, the stopping potential is . The threshold wavelength for the metallic surface is
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
Two non-mixing liquids of densities and n (n> 1) are put in a container. The height of each liquid is h. A solid cylinder of length Land density dis put in this container. The cylinder floats with its axis vertical and length pL (P<1) in the denser liquid. The density d is equal to
Two non-mixing liquids of densities and n (n> 1) are put in a container. The height of each liquid is h. A solid cylinder of length Land density dis put in this container. The cylinder floats with its axis vertical and length pL (P<1) in the denser liquid. The density d is equal to
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
Out of the following options which one can be used to produce a propagating electromagnetic wave?
Out of the following options which one can be used to produce a propagating electromagnetic wave?
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
The charge following through a resistance R varies with time t as Q = at-bt2, where a and b are positive constants. The total heat produced in R is
The charge following through a resistance R varies with time t as Q = at-bt2, where a and b are positive constants. The total heat produced in R is
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
At what height from the surface of earth the gravitation potential and the value of g are: 5.4 x 107 J kg-2 and 6.0 ms-2 respectively? (Take, the radius of earth as 6400 km.)
At what height from the surface of earth the gravitation potential and the value of g are: 5.4 x 107 J kg-2 and 6.0 ms-2 respectively? (Take, the radius of earth as 6400 km.)
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
Coefficient of linear expansion of brass and steel rods are and Lengths of brass and steel rods are l1 and l2 respectively. If (l2-l1) is maintained same at all temperatures, which one of the following relations holds good?
Coefficient of linear expansion of brass and steel rods are and Lengths of brass and steel rods are l1 and l2 respectively. If (l2-l1) is maintained same at all temperatures, which one of the following relations holds good?
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
The intensity at the maximum in a Young's double slit experiment is I0. Distance between two slits is d = 5, where is the wavelength of light used in the experiment. What will be the intensity in front of one of the slits on the screen placed at a distance D = 10 d?
The intensity at the maximum in a Young's double slit experiment is I0. Distance between two slits is d = 5, where is the wavelength of light used in the experiment. What will be the intensity in front of one of the slits on the screen placed at a distance D = 10 d?
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt

Given, the value of Rydberg constant is 107 m-1, the wave number of the last line of the Balmer series in hydrogen spectrum will be:

Given, the value of Rydberg constant is 107 m-1, the wave number of the last line of the Balmer series in hydrogen spectrum will be:

Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
The ratio of escape velocity at earth (Ve) to the escape velocity at a planet (Vp) whose radius and mean density are twice as that of earth is
The ratio of escape velocity at earth (Ve) to the escape velocity at a planet (Vp) whose radius and mean density are twice as that of earth is
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
A long solenoid has 1000 turns. When a current of 4A flows through it, the magnetic flux linked with each turn of the solenoid is 4 x 10-3Wb. The self-inductance of the solenoid is
A long solenoid has 1000 turns. When a current of 4A flows through it, the magnetic flux linked with each turn of the solenoid is 4 x 10-3Wb. The self-inductance of the solenoid is
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
A car is negotiating a curved road of radius R. The road is banked at angle θ. The coefficient of friction between the tyre of the car and the road is . The maximum safe velocity on this road is.
A car is negotiating a curved road of radius R. The road is banked at angle θ. The coefficient of friction between the tyre of the car and the road is . The maximum safe velocity on this road is.
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
The magnetic susceptibility is negative for
The magnetic susceptibility is negative for
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
A siren emitting a sound of frequency 800 Hz moves away from an observer towards a cliff at a speed of 15ms-1. Then, the frequency of sound that the observer hears in the echo reflected from the cliff is ______(Take, velocity of sound in air = 330 ms-1)
A siren emitting a sound of frequency 800 Hz moves away from an observer towards a cliff at a speed of 15ms-1. Then, the frequency of sound that the observer hears in the echo reflected from the cliff is ______(Take, velocity of sound in air = 330 ms-1)
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
A body of mass 1 kg begins to move under the action of a time dependent force, where and are unit vectors along X and Y axis. What power will be developed by the force at the time (t)?
A body of mass 1 kg begins to move under the action of a time dependent force, where and are unit vectors along X and Y axis. What power will be developed by the force at the time (t)?
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
From a disc of radius R and mass M, a circular hole of diameter R, whose rim passes of inertia of the remaining part of the disc about a perpendicular axis, passing through the center?
From a disc of radius R and mass M, a circular hole of diameter R, whose rim passes of inertia of the remaining part of the disc about a perpendicular axis, passing through the center?
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
In a diffraction pattern due to a single slit of width a, the first minimum is observed at an angle 300 when light of wavelength 5000 is incident on the slit. The first secondary maximum is observed at an angle of
In a diffraction pattern due to a single slit of width a, the first minimum is observed at an angle 300 when light of wavelength 5000 is incident on the slit. The first secondary maximum is observed at an angle of
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
A square loop ABCD carrying a current i, is placed near and coplanar with a long straight conductor XY carrying a current I, the net force on the loop will be
A square loop ABCD carrying a current i, is placed near and coplanar with a long straight conductor XY carrying a current I, the net force on the loop will be
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
A black body is at a temperature of 5760 K. The energy of radiation emitted by the body at wavelength 250 nm is U1, at wavelength 500 nm is U2 and that at 1000 nm is U3. Wien’s constant, b = 2.88 X 106 nm-K. Which of the following is correct?
A black body is at a temperature of 5760 K. The energy of radiation emitted by the body at wavelength 250 nm is U1, at wavelength 500 nm is U2 and that at 1000 nm is U3. Wien’s constant, b = 2.88 X 106 nm-K. Which of the following is correct?
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
An air column, closed at one end and open at the other, resonates with a tuning fork when the smallest length of the column is 50 cm. The next larger length of the column resonating with the same tuning fork is
An air column, closed at one end and open at the other, resonates with a tuning fork when the smallest length of the column is 50 cm. The next larger length of the column resonating with the same tuning fork is
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
The molecules of a given mass of a gas have R.M.S. velocity of 200 ms-1 at 27 °C and 1.0x105 Nm-2 pressure. When the temperature and the pressure of the gas are respectively, 127 °C and 0.5 x 105 Nm-2, the RMS velocity of its molecules in ms-1 is
The molecules of a given mass of a gas have R.M.S. velocity of 200 ms-1 at 27 °C and 1.0x105 Nm-2 pressure. When the temperature and the pressure of the gas are respectively, 127 °C and 0.5 x 105 Nm-2, the RMS velocity of its molecules in ms-1 is
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
Consider the junction diode as an ideal. The value of current flowing through AB is
Consider the junction diode as an ideal. The value of current flowing through AB is
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
If the magnitude of sum of two vectors is equal to the magnitude of difference of the two vectors, the angle between these vectors is
If the magnitude of sum of two vectors is equal to the magnitude of difference of the two vectors, the angle between these vectors is
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
A astronomical telescope has objective and eyepiece of focal lengths 40 cm 4 cm respectively. To view an object 200 cm away from the objective, the lenses must be separated by a distance
A astronomical telescope has objective and eyepiece of focal lengths 40 cm 4 cm respectively. To view an object 200 cm away from the objective, the lenses must be separated by a distance
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
A n-p-n transistor is connected in common emitter configuration in a given amplifier. A load resistance of 800 is connected in the collector circuit and the voltage drop across it is 0.8V. If the current amplification factor is 0.96 and the input resistance of the circuits is 192, the voltage gain and the power gain of the amplifier will respectively be
A n-p-n transistor is connected in common emitter configuration in a given amplifier. A load resistance of 800 is connected in the collector circuit and the voltage drop across it is 0.8V. If the current amplification factor is 0.96 and the input resistance of the circuits is 192, the voltage gain and the power gain of the amplifier will respectively be
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
A gas is compressed isothermally to half its initial volume. The same gas is compressed separately through an adiabatic process until its volume is again reduced to half. Then
A gas is compressed isothermally to half its initial volume. The same gas is compressed separately through an adiabatic process until its volume is again reduced to half. Then
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
A long straight wire of radius a ' carries a steady current I. The current is uniformly distributed over its cross-section. The ratio of the magnetic fields B and B' at radial distancesand 2 a respectively, from the axis of the wire is
A long straight wire of radius a ' carries a steady current I. The current is uniformly distributed over its cross-section. The ratio of the magnetic fields B and B' at radial distancesand 2 a respectively, from the axis of the wire is
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
Match the corresponding entries of Column 1 with Column 2. [Where m is the magnification produced by the mirror]
Match the corresponding entries of Column 1 with Column 2. [Where m is the magnification produced by the mirror]
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
If the velocity of a particle is v =At+ Bt2, where A and B are constants, then the distance travelled by it between 1s and 2s is
If the velocity of a particle is v =At+ Bt2, where A and B are constants, then the distance travelled by it between 1s and 2s is
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
A disc and a sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first?
A disc and a sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first?
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
Two identical charged spheres suspended from a common point by two massless strings of lengths l, are initially at a distance d (d << 1) apart because of their mutual repulsion. The charges begin to leak from both the spheres at a constant rate. As a result, the spheres approach each other with a velocity v. Then, v varies as a function of the distance x between the sphere, as
Two identical charged spheres suspended from a common point by two massless strings of lengths l, are initially at a distance d (d << 1) apart because of their mutual repulsion. The charges begin to leak from both the spheres at a constant rate. As a result, the spheres approach each other with a velocity v. Then, v varies as a function of the distance x between the sphere, as
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
A particle moves so that its position vector is given by r =cos, where is a constant.
Which of the following is true?
A particle moves so that its position vector is given by r =cos, where is a constant.
Which of the following is true?
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
A piece of ice falls from a height h so that it melts completely. Only one-quarter of the heat produced is absorbed by the ice and all energy of ice gets converted into heat during its fall. The value of h is [Latent heat of ice is 3.4 X 105 J/kg and g =10 N/kg]
A piece of ice falls from a height h so that it melts completely. Only one-quarter of the heat produced is absorbed by the ice and all energy of ice gets converted into heat during its fall. The value of h is [Latent heat of ice is 3.4 X 105 J/kg and g =10 N/kg]
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
A uniform circular disc of radius 50 cm at rest is free to turn about an axis which is perpendicular to its plane and passes through its center. It is subjected to a torque which produces a constant angular acceleration of 2.0 rad s-2. Its net acceleration in ms-2 at the end of 2.0 s is an approximately
A uniform circular disc of radius 50 cm at rest is free to turn about an axis which is perpendicular to its plane and passes through its center. It is subjected to a torque which produces a constant angular acceleration of 2.0 rad s-2. Its net acceleration in ms-2 at the end of 2.0 s is an approximately
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can complete the loop?
What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can complete the loop?
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
A small signal voltage V(t) = V0 sint is applied across an ideal capacitor C
A small signal voltage V(t) = V0 sint is applied across an ideal capacitor C
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
A uniform rope of length L and mass m1 hangs vertically from a rigid support. A block of mass m2 is attached to the free end of the rope. A transverse pulse of wavelength is produced at the lower end of the rope. The wavelength of the pulse when it reaches the top of the rope is . The ratio is
A uniform rope of length L and mass m1 hangs vertically from a rigid support. A block of mass m2 is attached to the free end of the rope. A transverse pulse of wavelength is produced at the lower end of the rope. The wavelength of the pulse when it reaches the top of the rope is . The ratio is
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
An inductor 20mH, a capacitor 50F and a resistor 40 are connected in series across a source of emf V = 10 sin 340t. The power loss in AC circuit is
An inductor 20mH, a capacitor 50F and a resistor 40 are connected in series across a source of emf V = 10 sin 340t. The power loss in AC circuit is
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
An electron of mass m and a photon have same energy E. the ratio of de-Broglie wavelengths associated with them is
(c being velocity of light)
An electron of mass m and a photon have same energy E. the ratio of de-Broglie wavelengths associated with them is
(c being velocity of light)
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
When an – particle of mass m moving with velocity v bombards on a heavy nucleus of charge Ze, its distance of closest approach from the nucleus depends on m as
When an – particle of mass m moving with velocity v bombards on a heavy nucleus of charge Ze, its distance of closest approach from the nucleus depends on m as
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
A refrigerator works between 4 °C and 30 °C. It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is
(Take, 1 cal= 4.2 Joules)
A refrigerator works between 4 °C and 30 °C. It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is
(Take, 1 cal= 4.2 Joules)
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
A particle of mass 10 g moves along a circle of radius 6.4 cm with a constant tangential acceleration. What is the magnitude of this acceleration, if the kinetic energy of the particle becomes equal to 8 x 10-4J by the end of the second revolution after the beginning of the motion?
A particle of mass 10 g moves along a circle of radius 6.4 cm with a constant tangential acceleration. What is the magnitude of this acceleration, if the kinetic energy of the particle becomes equal to 8 x 10-4J by the end of the second revolution after the beginning of the motion?
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
The angle of incidence for a ray of light at a refracting surface of a prism is 450. The angle of prism is 600. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are
The angle of incidence for a ray of light at a refracting surface of a prism is 450. The angle of prism is 600. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
The addition of a catalyst during a chemical reaction alters which of the following quantities?
The addition of a catalyst during a chemical reaction alters which of the following quantities?
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
Predict the correct order among the following.
Predict the correct order among the following.
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
The correct statement regarding the basicity of arylamines is
The correct statement regarding the basicity of arylamines is
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt

When copper is heated with conc. HNO3 it produces

When copper is heated with conc. HNO3 it produces
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
For the following reactions,
(i) CH3CH2CH2Br + KOHCH3CH=CH2 + KBr + H2O
(ii)
(iii)
Which of the following statements is correct?
For the following reactions,
(i) CH3CH2CH2Br + KOHCH3CH=CH2 + KBr + H2O
(ii)
(iii)
Which of the following statements is correct?
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
Two electrons occupying the same orbital are distinguished by
Two electrons occupying the same orbital are distinguished by
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
The reaction
 
can be classified as
The reaction
 
can be classified as
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
The electronic configurations of Eu (Atomic no. 63), Gd (Atomic no. 64) and Tb (Atomic no. 65) are
The electronic configurations of Eu (Atomic no. 63), Gd (Atomic no. 64) and Tb (Atomic no. 65) are
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
At 100 °C the vapour pressure of a solution of 6.5 g of a solute in 100 g water is 732 mm. If Kb = 0.52, the boiling point of this solution will be
At 100 °C the vapour pressure of a solution of 6.5 g of a solute in 100 g water is 732 mm. If Kb = 0.52, the boiling point of this solution will be
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
The correct statement regarding the comparison of staggered and eclipsed conformations of ethane is
The correct statement regarding the comparison of staggered and eclipsed conformations of ethane is
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
Which one of the following characteristics is associated with adsorption?
Which one of the following characteristics is associated with adsorption?
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
Match the compounds given in Column I with the hybridization and shape given in Column II and mark the correct option.
Column I
A) XeF6
B) XeO3
C) XeOF4
D) XeF4
Column II
1) Distorted octahedral
2) Square planar
3) Pyramidal
4) Square pyramidal
Match the compounds given in Column I with the hybridization and shape given in Column II and mark the correct option.
Column I
A) XeF6
B) XeO3
C) XeOF4
D) XeF4
Column II
1) Distorted octahedral
2) Square planar
3) Pyramidal
4) Square pyramidal
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon, is
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon, is
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
In a protein molecule various amino acids are linked together by
In a protein molecule various amino acids are linked together by
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt

Match items of Column I with the items of Column II and assign the correct code.
Column I
A) Cyanide process
B) Froth floatation Process
C) Electrolytic
D) Zone refining
Column II
1) Ultra pure Ge
2) Dressing of ZnS
3) Extraction of Al Reduction
4) Extracting of Au
5) Purification of Ni

Match items of Column I with the items of Column II and assign the correct code.
Column I
A) Cyanide process
B) Froth floatation Process
C) Electrolytic
D) Zone refining
Column II
1) Ultra pure Ge
2) Dressing of ZnS
3) Extraction of Al Reduction
4) Extracting of Au
5) Purification of Ni

Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
Which of the following is an analgesic?
Which of the following is an analgesic?
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
Which is the correct statement for the given acids?
Which is the correct statement for the given acids?
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
The pair of electron in the given carbanion, CH3C≡C–, is present in which orbitals?
The pair of electron in the given carbanion, CH3C≡C–, is present in which orbitals?
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
Consider the molecules CH4, NH3 and H2O. Which of the given statements is false?
Consider the molecules CH4, NH3 and H2O. Which of the given statements is false?
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt

Which one of the following statements is correct when SO2 is passed through acidified K2Cr2O7 solution?

Which one of the following statements is correct when SO2 is passed through acidified K2Cr2O7 solution?

Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
The correct thermodynamic conditions for the spontaneous reaction at all temperatures is
The correct thermodynamic conditions for the spontaneous reaction at all temperatures is
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
Natural rubber has
Natural rubber has
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
In which of the following options the order of arrangement agree with the variation of property indicated against it?
In which of the following options the order of arrangement agree with the variation of property indicated against it?
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
Which of the following reagents would distinguish cis-cyclopenta-1, 2-diol from the trans-isomer?
Which of the following reagents would distinguish cis-cyclopenta-1, 2-diol from the trans-isomer?
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
The product obtained as a result of a reaction of nitrogen with CaC2 is .
The product obtained as a result of a reaction of nitrogen with CaC2 is .
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
Fog is a colloidal solution of
Fog is a colloidal solution of
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?
Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
Equal moles of hydrogen and oxygen gases are placed in container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for one-half of the hydrogen to escape?
Equal moles of hydrogen and oxygen gases are placed in container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for one-half of the hydrogen to escape?
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
Lithium has a bcc structure. Its density is 530 kg m-3 and its atomic mass is 6.94 g mol-1 Calculate the edge length of a unit cell of lithium metal.
(NA= 6.02 X 1023 mol-1)
Lithium has a bcc structure. Its density is 530 kg m-3 and its atomic mass is 6.94 g mol-1 Calculate the edge length of a unit cell of lithium metal.
(NA= 6.02 X 1023 mol-1)
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
Which of the following statements about the composition of the vapour over an ideal 1:1 molar mixture of benzene and toluene is correct? Assume that the temperature is constant at 250c.
(Given, vapour pressure data at 25 °C, benzene= 12.8 kPa, toluene= 3.85 kPa)
Which of the following statements about the composition of the vapour over an ideal 1:1 molar mixture of benzene and toluene is correct? Assume that the temperature is constant at 250c.
(Given, vapour pressure data at 25 °C, benzene= 12.8 kPa, toluene= 3.85 kPa)
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
Which of the following has longest C ­—O bond length? (Free C—O bond length in CO is 1.128 )
Which of the following has longest C ­—O bond length? (Free C—O bond length in CO is 1.128 )
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
Among the following the correct order of acidity is
Among the following the correct order of acidity is
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
In the reaction,
 
X and Y are
In the reaction,
 
X and Y are
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
MY and NY3, two nearly insoluble salts, have the same Ksp values of 6.2 x 10-13 at room temperature. Which statement would be true in regard to MY and NY3 ?
MY and NY3, two nearly insoluble salts, have the same Ksp values of 6.2 x 10-13 at room temperature. Which statement would be true in regard to MY and NY3 ?
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
Consider the nitration of benzene using mixed conc. H2SO4 and HNO3. If a large amount of KHSO4 is added to the mixture, the rate of nitration will be
Consider the nitration of benzene using mixed conc. H2SO4 and HNO3. If a large amount of KHSO4 is added to the mixture, the rate of nitration will be
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
The product formed by the reaction of an aldehyde with a primary amine is
The product formed by the reaction of an aldehyde with a primary amine is
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
The pressure of H2 required to make the potential of H2-electrode zero in pure water at 298 K is
The pressure of H2 required to make the potential of H2-electrode zero in pure water at 298 K is
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
The correct statement regarding RNA and DNA, respectively is
The correct statement regarding RNA and DNA, respectively is
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
Which one given below is a non-reducing sugar?
Which one given below is a non-reducing sugar?
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
Which of the following statements about hydrogen is incorrect?
Which of the following statements about hydrogen is incorrect?
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
Consider the following liquid-vapour equilibrium
Liquid Vapour
Which of the following relation is correct?
Consider the following liquid-vapour equilibrium
Liquid Vapour
Which of the following relation is correct?
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
Which of the following biphenyls is optically active?
Which of the following biphenyls is optically active?
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
Which of the following statements is false?
Which of the following statements is false?
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
The ionic radii of A+ and B- ions are 0.98 x10-10 m and 1.81 x10-10 m. The coordination number of each ion in AB is:
The ionic radii of A+ and B- ions are 0.98 x10-10 m and 1.81 x10-10 m. The coordination number of each ion in AB is:
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
The rate of a first-order reaction is 0.04 mol l‑1 s-1 at 10 seconds and 0.03 mol l-1 s-1 at 20 seconds after initiation of the reaction. The half-life period of the reaction is:
The rate of a first-order reaction is 0.04 mol l‑1 s-1 at 10 seconds and 0.03 mol l-1 s-1 at 20 seconds after initiation of the reaction. The half-life period of the reaction is:
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
Which of the following characteristic features always holds true for the corresponding group of animals?
Which of the following characteristic features always holds true for the corresponding group of animals?
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
Changes in GnRH pulse frequency in females is controlled by circulating levels of
Changes in GnRH pulse frequency in females is controlled by circulating levels of
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
Microtubules are the constituents of
Microtubules are the constituents of
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
Mitochondria and chloroplast are
I. semi-autonomous organelles.
II. formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery.
Which one of the following options is correct?
Mitochondria and chloroplast are
I. semi-autonomous organelles.
II. formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery.
Which one of the following options is correct?
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
Photosensitive compound in human eye is made up of
Photosensitive compound in human eye is made up of
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
Chrysophytes, euglenoids, dinoflagellates and slime moulds are included in the kingdom
Chrysophytes, euglenoids, dinoflagellates and slime moulds are included in the kingdom
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animal, include the
The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animal, include the
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
Identify the correct statement on 'inhibin'
Identify the correct statement on 'inhibin'
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
It is much easier for a small animal to run Uphill than for a large animal, because
It is much easier for a small animal to run Uphill than for a large animal, because
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the F1 plants were selfed the resulting genotypes were in the ratio of
A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the F1 plants were selfed the resulting genotypes were in the ratio of
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
Depletion of which gas in the atmosphere can lead to an increased of skin cancers
Depletion of which gas in the atmosphere can lead to an increased of skin cancers
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
Which one of the following is a characterstics feature of cropland ecosystem?
Which one of the following is a characterstics feature of cropland ecosystem?
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
Tricarpellary, syncarpous is found in flowers of
Tricarpellary, syncarpous is found in flowers of
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
In which of the following, all three are macronutrients?
In which of the following, all three are macronutrients?
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
Reduction in pH of blood will
Reduction in pH of blood will
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
Lack of relaxation between successive stimuli in sustained muscle contraction is known as
Lack of relaxation between successive stimuli in sustained muscle contraction is known as
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
Which one of the following statements is wrong?
Which one of the following statements is wrong?
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
Which of the following is a restriction endonuclease?
Which of the following is a restriction endonuclease?
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
Which of the following would appear as the pioneer organisms on bare rocks?
Which of the following would appear as the pioneer organisms on bare rocks?
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening, carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using the following options.
Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening, carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using the following options.
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
Cotyledon of maize grain is called
Cotyledon of maize grain is called
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
Which of the following guards the opening of hepatopancereatic duct into the duodenum ?
Which of the following guards the opening of hepatopancereatic duct into the duodenum ?
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
In the stomach, gastric acid is secreted by the
In the stomach, gastric acid is secreted by the
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
In mammals, which blood vessel which would normally carry largest amount of urea?
In mammals, which blood vessel which would normally carry largest amount of urea?
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
The term ecosystem was coined by
The term ecosystem was coined by
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
Which of the following s required as inducer (s) for the expression of lac operon ?
Which of the following s required as inducer (s) for the expression of lac operon ?
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
Which of the following is wrongly matched in the given table ?
Which of the following is wrongly matched in the given table ?
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt = rN(1-N/K)
When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt = rN(1-N/K)
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
Which one of the following statements is not true?
Which one of the following statements is not true?
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
In bryophytes and pteridophytes, transport of male gametes requires
In bryophytes and pteridophytes, transport of male gametes requires
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
Which of the following is not a stem modification?
Which of the following is not a stem modification?
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
Which one of the following cell organelles is enclosed by a single membrane?
Which one of the following cell organelles is enclosed by a single membrane?
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
Analogous structure are results of
Analogous structure are results of
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
Which one of the following statements is wrong?
Which one of the following statements is wrong?
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
Proximal end of the filament of stamen is attached to the
Proximal end of the filament of stamen is attached to the
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
Which of the following is not required for any of the techniques of DNA fingerprinting available at present?
Which of the following is not required for any of the techniques of DNA fingerprinting available at present?
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
Which of the following characteristics is not shared by birds and mammals?
Which of the following characteristics is not shared by birds and mammals?
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
Select the incorrect statement
Select the incorrect statement
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
The amino acid, tryptophan is the precursor for the synthesis of
The amino acid, tryptophan is the precursor for the synthesis of
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
Joint Forest Management Concept was introduced in India during
Joint Forest Management Concept was introduced in India during
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
One of the major compound of cell wall of most fungi is
One of the major compound of cell wall of most fungi is
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
A complex of ribosomes attached to a single strand of RNA is known as
A complex of ribosomes attached to a single strand of RNA is known as
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
Which of the following features is not present in the phylum –Arthorpoda?
Which of the following features is not present in the phylum –Arthorpoda?
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
Asthma may be attributed to
Asthma may be attributed to
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
Pick out the correct statements.
I. Haemophilia is a sex-linked recessive disease.
II. Down’s syndrome is due to aneuploidy.
III. Phenylketonuria is an autosomal recessive gene disorder.
IV. Sickle cell anaemia is an X-linked recessive gene disorder
Pick out the correct statements.
I. Haemophilia is a sex-linked recessive disease.
II. Down’s syndrome is due to aneuploidy.
III. Phenylketonuria is an autosomal recessive gene disorder.
IV. Sickle cell anaemia is an X-linked recessive gene disorder
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
The two polypeptides of human insulin are linked together by
The two polypeptides of human insulin are linked together by
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
The coconut water from tender coconut represents
The coconut water from tender coconut represents
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
Which of the following is not a feature of the plasmids ?
Which of the following is not a feature of the plasmids ?
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
Which of the National Aquatic Animal of India?
Which of the National Aquatic Animal of India?
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
The Avena curvature is used for bioassay of
The Avena curvature is used for bioassay of
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
Which of the following is the most important cause of animals and plants being driven to extinction ?
Which of the following is the most important cause of animals and plants being driven to extinction ?
Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
Which of the following approaches does not give the defined action of contraceptive?
Which of the following approaches does not give the defined action of contraceptive?
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant type offspring. This indicates
In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant type offspring. This indicates
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
A typical fat molecule is made up of
A typical fat molecule is made up of
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
Match the terms in Column I with their description in Column II and choose the correct option.
Match the terms in Column I with their description in Column II and choose the correct option.
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
Which of he following statements is not correct?
Which of he following statements is not correct?
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
Which of the following features is not present in Periplaneta Americana?
Which of the following features is not present in Periplaneta Americana?
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
Water soluble pigments found in plant cell vacuoles are
Water soluble pigments found in plant cell vacuoles are
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
A cell at telophase stage is observed by a student in a brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is containing more number of chromosomes as compared to other dividing cells. This would result in
A cell at telophase stage is observed by a student in a brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is containing more number of chromosomes as compared to other dividing cells. This would result in
Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?
A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?
Q.61 Correct
Q.61 In-correct
Q.61 Unattempt
In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self –cells, then it leads to
In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self –cells, then it leads to
Q.62 Correct
Q.62 In-correct
Q.62 Unattempt
Emerson’s enhancement effect and red drop have been instrumental in the discovery of
Emerson’s enhancement effect and red drop have been instrumental in the discovery of
Q.63 Correct
Q.63 In-correct
Q.63 Unattempt
Select the correct statement.
Select the correct statement.
Q.64 Correct
Q.64 In-correct
Q.64 Unattempt
Which of the following is not a characteristic feature during mitosis cells ?
Which of the following is not a characteristic feature during mitosis cells ?
Q.65 Correct
Q.65 In-correct
Q.65 Unattempt
Blood pressure in the pulmonary artery is
Blood pressure in the pulmonary artery is
Q.66 Correct
Q.66 In-correct
Q.66 Unattempt
Which of the following structure is homologous to the wing of a bird?
Which of the following structure is homologous to the wing of a bird?
Q.67 Correct
Q.67 In-correct
Q.67 Unattempt
Seed formation without fertilization in flowering plants involves the process of
Seed formation without fertilization in flowering plants involves the process of
Q.68 Correct
Q.68 In-correct
Q.68 Unattempt
Name the chronic respiratory disorder caused mainly by cigarette smoking
Name the chronic respiratory disorder caused mainly by cigarette smoking
Q.69 Correct
Q.69 In-correct
Q.69 Unattempt
Spindle fibres attach on to
Spindle fibres attach on to
Q.70 Correct
Q.70 In-correct
Q.70 Unattempt
In context of amniocentesis which of the following statements is incorrect?
In context of amniocentesis which of the following statements is incorrect?
Q.71 Correct
Q.71 In-correct
Q.71 Unattempt
Stems modified into flat green organs performing the functions of leaves are known as
Stems modified into flat green organs performing the functions of leaves are known as
Q.72 Correct
Q.72 In-correct
Q.72 Unattempt
In chloroplast the highest number if protons are found in
In chloroplast the highest number if protons are found in
Q.73 Correct
Q.73 In-correct
Q.73 Unattempt
Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomemclature?
Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomemclature?
Q.74 Correct
Q.74 In-correct
Q.74 Unattempt
In meiosis crossing over is initiated at
In meiosis crossing over is initiated at
Q.75 Correct
Q.75 In-correct
Q.75 Unattempt
Antivenom injection contains performed antibodies while polio drops that are administered into the body contain
Antivenom injection contains performed antibodies while polio drops that are administered into the body contain
Q.76 Correct
Q.76 In-correct
Q.76 Unattempt
The Taq polymerase enzyme is obtained from
The Taq polymerase enzyme is obtained from
Q.77 Correct
Q.77 In-correct
Q.77 Unattempt
Which of the following most appropriately describes haemophilia?
Which of the following most appropriately describes haemophilia?
Q.78 Correct
Q.78 In-correct
Q.78 Unattempt
The standard petel of a papilionaceous corolla is also called ?
The standard petel of a papilionaceous corolla is also called ?
Q.79 Correct
Q.79 In-correct
Q.79 Unattempt
Which part of the tobacco plant is infected by Meloidegyne incognitia?
Which part of the tobacco plant is infected by Meloidegyne incognitia?
Q.80 Correct
Q.80 In-correct
Q.80 Unattempt
Which of the following statements is wrong for viroids?
Which of the following statements is wrong for viroids?
Q.81 Correct
Q.81 In-correct
Q.81 Unattempt
Which of the following statements is not true for cancer cells in relation to mutations?
Which of the following statements is not true for cancer cells in relation to mutations?
Q.82 Correct
Q.82 In-correct
Q.82 Unattempt
Which type of tissue correctly matched with its location?
Which type of tissue correctly matched with its location?
Q.83 Correct
Q.83 In-correct
Q.83 Unattempt
Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other?
Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other?
Q.84 Correct
Q.84 In-correct
Q.84 Unattempt
Specialised epidermal cells surrounding the guard cells are called
Specialised epidermal cells surrounding the guard cells are called
Q.85 Correct
Q.85 In-correct
Q.85 Unattempt
Fertilisation in humans is practically feasible only if
Fertilisation in humans is practically feasible only if
Q.86 Correct
Q.86 In-correct
Q.86 Unattempt
Which one of the following is the starter codon?
Which one of the following is the starter codon?
Q.87 Correct
Q.87 In-correct
Q.87 Unattempt
A river with an inflow of domestic sewage rich in organic waste may result in
A river with an inflow of domestic sewage rich in organic waste may result in
Q.88 Correct
Q.88 In-correct
Q.88 Unattempt
Following are the two statements regarding the origin of life
I. The earliest organisms that appeared on the earth were non-green and presumably anaerobes.
II. The first autotrophic organisms were the chemoautotrophs that never released oxygen.
Of the above statements which one of the following options is correct?
Following are the two statements regarding the origin of life
I. The earliest organisms that appeared on the earth were non-green and presumably anaerobes.
II. The first autotrophic organisms were the chemoautotrophs that never released oxygen.
Of the above statements which one of the following options is correct?
Q.89 Correct
Q.89 In-correct
Q.89 Unattempt
A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called
A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called
Q.90 Correct
Q.90 In-correct
Q.90 Unattempt
Gause's principle of competitive exclusion states that
Gause's principle of competitive exclusion states that
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