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Solution
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Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
Planck's constant (h), speed of light in the vacuum (c) and Newton's gravitational constant (G) are three fundamental constants. Which of the following combinations of these has the dimension of length?
Planck's constant (h), speed of light in the vacuum (c) and Newton's gravitational constant (G) are three fundamental constants. Which of the following combinations of these has the dimension of length?
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
Two cars P and Q start from a point at the same time in a straight line and their positions are represented by xp(t) =at + bt2 and xQ(t) = ft - t2. At what time do the cars have the same velocity?
Two cars P and Q start from a point at the same time in a straight line and their positions are represented by xp(t) =at + bt2 and xQ(t) = ft - t2. At what time do the cars have the same velocity?
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
In the given figure, a = 15m /s2 represents the total acceleration of a particle moving in the clockwise direction in a circle of radius R = 2.5 m at a given instant of time. The speed of the particle is
In the given figure, a = 15m /s2 represents the total acceleration of a particle moving in the clockwise direction in a circle of radius R = 2.5 m at a given instant of time. The speed of the particle is
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
A rigid ball of mass m strikes a rigid wall at 60 ° and gets reflected without loss of speed as shown in the figure. The value of impulse imparted by the wall on the ball will be
A rigid ball of mass m strikes a rigid wall at 60 ° and gets reflected without loss of speed as shown in the figure. The value of impulse imparted by the wall on the ball will be
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
A bullet of mass 10 g moving horizontal with a velocity of 400 m/s strikes a wood block of mass 2 kg which is suspended by light inextensible string of length 5 m. As result, the centre of gravity of the block found to rise a vertical distance of 10 cm. The speed of the bullet after it emerges of horizontally from the block will be
A bullet of mass 10 g moving horizontal with a velocity of 400 m/s strikes a wood block of mass 2 kg which is suspended by light inextensible string of length 5 m. As result, the centre of gravity of the block found to rise a vertical distance of 10 cm. The speed of the bullet after it emerges of horizontally from the block will be
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt

Two identical balls A and B having velocities of 0.5 m/s and -0.3 m/s respectively collide elastically in one dimension. The velocities of B and A after the collision respectively will be

Two identical balls A and B having velocities of 0.5 m/s and -0.3 m/s respectively collide elastically in one dimension. The velocities of B and A after the collision respectively will be
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
A particle moves from a point(-2i+5j) to (4j+3k) when a force of (4 i+3j) N is applied. How much work has been done by the force?
A particle moves from a point(-2i+5j) to (4j+3k) when a force of (4 i+3j) N is applied. How much work has been done by the force?
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
Two rotating bodies A and B of masses m and 2m with moments of inertia IA and IB(IB > IA) have equal kinetic energy of rotation. If LA and LB be their angular momenta respectively, then
Two rotating bodies A and B of masses m and 2m with moments of inertia IA and IB(IB > IA) have equal kinetic energy of rotation. If LA and LB be their angular momenta respectively, then
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
A solid sphere of mass m and radius R is rotating about its diameter. A solid cylinder of the same mass and same radius is also rotating about its geometrical axis with an angular speed twice that of the sphere. The ratio of their kinetic energies of rotation (Sphere/cylinder) will be
A solid sphere of mass m and radius R is rotating about its diameter. A solid cylinder of the same mass and same radius is also rotating about its geometrical axis with an angular speed twice that of the sphere. The ratio of their kinetic energies of rotation (Sphere/cylinder) will be
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
A light rod of length l has two masses m1 and m2 attached to its two ends. The moment of inertia of the system about an axis perpendicular to the rod and passing through the centre of mass is
A light rod of length l has two masses m1 and m2 attached to its two ends. The moment of inertia of the system about an axis perpendicular to the rod and passing through the centre of mass is
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
Starting from the centre of the earth having radius R, the variation of g (acceleration due to gravity) is shown by
Starting from the centre of the earth having radius R, the variation of g (acceleration due to gravity) is shown by
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
A satellite of mass m is orbiting the earth (of radius R) at a height h from its surface. The total energy of the satellite in terms of g0, the value of acceleration due to gravity at the earth's surface is
A satellite of mass m is orbiting the earth (of radius R) at a height h from its surface. The total energy of the satellite in terms of g0, the value of acceleration due to gravity at the earth's surface is
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
A rectangular film of liquid is extended from (4 cm x 2 cm) to (5 cm x 4 x cm). If the work done is 3 x 10-4 J, the value of the surface tension of the liquid is
A rectangular film of liquid is extended from (4 cm x 2 cm) to (5 cm x 4 x cm). If the work done is 3 x 10-4 J, the value of the surface tension of the liquid is
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
Three liquids of densities p1, p2 and p3 (with p1> p2 > p3). having the same value of surface tension T, rise to the same height in three identical capillaries. The angles of contact e1, e2 and e3 obey
Three liquids of densities p1, p2 and p3 (with p1> p2 > p3). having the same value of surface tension T, rise to the same height in three identical capillaries. The angles of contact e1, e2 and e3 obey
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
Two identical bodies are made of a material for which the heat capacity increases with temperature. One of these is at 100 °C, while the other one is at 0 °C. If the two bodies are brought into contact, then assuming no heat loss, the final common temperature is
Two identical bodies are made of a material for which the heat capacity increases with temperature. One of these is at 100 °C, while the other one is at 0 °C. If the two bodies are brought into contact, then assuming no heat loss, the final common temperature is
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
A body cools from a temperature 3T to 2T in 10 minutes. The room temperature is T. Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be
A body cools from a temperature 3T to 2T in 10 minutes. The room temperature is T. Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
One mole of an ideal monatomic gas undergoes a process described by the equation pV3  =constant. The heat capacity of the gas during this process is
One mole of an ideal monatomic gas undergoes a process described by the equation pV3  =constant. The heat capacity of the gas during this process is
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
The temperature inside a refrigerator is t2oC and the room temperature is t1oC. The amount of heat delivered to the room for each joule of electrical energy consumed ideally will be
The temperature inside a refrigerator is t2oC and the room temperature is t1oC. The amount of heat delivered to the room for each joule of electrical energy consumed ideally will be
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
A given sample of an ideal gas occupies a volume V at a pressure p and absolute temperature T. The mass of each molecule of the gas is m. Which of the following gives the density of the gas?
A given sample of an ideal gas occupies a volume V at a pressure p and absolute temperature T. The mass of each molecule of the gas is m. Which of the following gives the density of the gas?
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
A body of mass m is attached to the lower end of a spring whose upper end is fixed. The spring has negligible mass. When the mass m is slightly pulled down and released, it oscillates with a time period of 3s. When the mass m is increased by 1 kg, the time period of oscillations becomes 5s. The value of min kg is
A body of mass m is attached to the lower end of a spring whose upper end is fixed. The spring has negligible mass. When the mass m is slightly pulled down and released, it oscillates with a time period of 3s. When the mass m is increased by 1 kg, the time period of oscillations becomes 5s. The value of min kg is
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
The second overtone of an open organ pipe has the same frequency as the first overtone of a closed pipe L meter long. The length of the open pipe will be
The second overtone of an open organ pipe has the same frequency as the first overtone of a closed pipe L meter long. The length of the open pipe will be
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt

Three sound waves of equal amplitudes have frequencies (n- 1), n, (n + 1). They superimpose to give beats. The number of beats produced per second will be

Three sound waves of equal amplitudes have frequencies (n- 1), n, (n + 1). They superimpose to give beats. The number of beats produced per second will be

Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
An electric dipole is placed at an angle of 30 ° with an electric field intensity 2 x 105 N/C. It experiences a torque equal to 4 Nm. The charge on the dipole, if the dipole length is 2 cm, is
An electric dipole is placed at an angle of 30 ° with an electric field intensity 2 x 105 N/C. It experiences a torque equal to 4 Nm. The charge on the dipole, if the dipole length is 2 cm, is
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
A parallel-plate capacitor of area A, plate separation d and capacitance C is filled with four dielectric materials having dielectric constants k1, k2, k3 and k4 as shown in the figure below. If a single dielectric material is to be used to have the same capacitance C in this capacitor, then its dielectric constant k is given by
A parallel-plate capacitor of area A, plate separation d and capacitance C is filled with four dielectric materials having dielectric constants k1, k2, k3 and k4 as shown in the figure below. If a single dielectric material is to be used to have the same capacitance C in this capacitor, then its dielectric constant k is given by
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
The potential difference (VA- VB) between the points A and B in the given figure is
The potential difference (VA- VB) between the points A and B in the given figure is
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
A filament bulb (500 W, 100 V) is to be used in a 230 V main supply. When a resistance R is connected in series, it works perfectly and the bulb consumes 500 W. The value of R is
A filament bulb (500 W, 100 V) is to be used in a 230 V main supply. When a resistance R is connected in series, it works perfectly and the bulb consumes 500 W. The value of R is
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is B. It is then bent into a circular coil of n turns. The magnetic field at the centre of this coil of n turns will be
A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is B. It is then bent into a circular coil of n turns. The magnetic field at the centre of this coil of n turns will be
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field and is in equilibrium state. The energy required to rotate it by 60o is W. Now the torque required to keep the magnet in this new position is
A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field and is in equilibrium state. The energy required to rotate it by 60o is W. Now the torque required to keep the magnet in this new position is
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
An electron is moving in a circular path under the influence of a transverse magnetic field of 3.57 x 10-2 T. If the value of e/m is 1.76 x 1011 C/kg, the frequency of revolution of the electron is
An electron is moving in a circular path under the influence of a transverse magnetic field of 3.57 x 10-2 T. If the value of e/m is 1.76 x 1011 C/kg, the frequency of revolution of the electron is
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
Which of the following combinations should be selected for better tuning of an L-C-R circuit used for communication?
Which of the following combinations should be selected for better tuning of an L-C-R circuit used for communication?
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt

A uniform magnetic field is restricted within a region of radius r. The magnetic field changes with time at a rate . Loop 1 of radius R > r encloses the region r and loop 2 of radius R is outside the region of the magnetic field as shown in the figure. Then, the emf generated is

A uniform magnetic field is restricted within a region of radius r. The magnetic field changes with time at a rate . Loop 1 of radius R > r encloses the region r and loop 2 of radius R is outside the region of the magnetic field as shown in the figure. Then, the emf generated is

Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
The potential differences across the resistance, capacitance and inductance are 80 V, 40 V and 100 V respectively in an L-C-R circuit. The power factor of this circuit is
The potential differences across the resistance, capacitance and inductance are 80 V, 40 V and 100 V respectively in an L-C-R circuit. The power factor of this circuit is
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
A 100 resistance and a capacitor of 100 reactance are connected in series across a 220 V source. When the capacitor is 50% charged, the peak value of the displacement Current is
A 100 resistance and a capacitor of 100 reactance are connected in series across a 220 V source. When the capacitor is 50% charged, the peak value of the displacement Current is
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
Two identical glass ( µg = 3 /2) equiconvex lenses of focal length f each are kept in contact. The space between the two lenses is filled with water ( µw = 4/3). The focal length of the combination is
Two identical glass ( µg = 3 /2) equiconvex lenses of focal length f each are kept in contact. The space between the two lenses is filled with water ( µw = 4/3). The focal length of the combination is
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
An air bubble in a glass slab with refractive index 1.5 (near normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face. The thickness (in cm) of the slab is
An air bubble in a glass slab with refractive index 1.5 (near normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face. The thickness (in cm) of the slab is
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
The interference pattern is obtained with two coherent light sources of intensity ratio n. In the interference pattern, the ratio will be
The interference pattern is obtained with two coherent light sources of intensity ratio n. In the interference pattern, the ratio will be
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
A person can see clearly objects only when they lie between 50 cm and 400 cm from his eyes. in order to increase the maximum distance of distinct vision to infinity, the type and power of the correcting lens, the person has to use, will be
A person can see clearly objects only when they lie between 50 cm and 400 cm from his eyes. in order to increase the maximum distance of distinct vision to infinity, the type and power of the correcting lens, the person has to use, will be
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
A linear aperture whose width is 0.02 cm is placed immediately in front of a lens of focal length 60 cm. the aperture is illuminated normally by a parallel beam of wavelength 5 x 10-5 cm. The distance of the first dark band of the diffraction pattern from the centre of the screen is
A linear aperture whose width is 0.02 cm is placed immediately in front of a lens of focal length 60 cm. the aperture is illuminated normally by a parallel beam of wavelength 5 x 10-5 cm. The distance of the first dark band of the diffraction pattern from the centre of the screen is
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
Electrons of mass m with de- Broglie wavelength λ fall on the target in an X-ray tube. The cut off wavelength (λo)of the emitted X-ray is
Electrons of mass m with de- Broglie wavelength λ fall on the target in an X-ray tube. The cut off wavelength (λo)of the emitted X-ray is
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
Photons with energy 5 e V are incident on a cathode C in a photoelectric cell. The maximum energy of emitted photoelectrons is 2 eV. When photons of energy 6 eV are incident on C, on photoelectrons will reach the anode A, if the stopping potential of A relative to C is
Photons with energy 5 e V are incident on a cathode C in a photoelectric cell. The maximum energy of emitted photoelectrons is 2 eV. When photons of energy 6 eV are incident on C, on photoelectrons will reach the anode A, if the stopping potential of A relative to C is
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
If an electron in a hydrogen atom jumps from the 3rd orbit to the 2nd orbit, it emits a photon of wavelength λ. When it jumps from the 4th orbit to the 3rd orbit, the corresponding wavelength of the photon will be
If an electron in a hydrogen atom jumps from the 3rd orbit to the 2nd orbit, it emits a photon of wavelength λ. When it jumps from the 4th orbit to the 3rd orbit, the corresponding wavelength of the photon will be
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
The half-life of a radioactive substance is 30 minutes. The time (in minutes) taken between 40% decay and 85% decay of the same radioactive substance is
The half-life of a radioactive substance is 30 minutes. The time (in minutes) taken between 40% decay and 85% decay of the same radioactive substance is
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
For CE transistor amplifier, the audio signal voltage across the collector resistance of 2 kQ is 4 V. If the current amplification factor of the transistor is 100 and the base resistance is 1 kQ, then the input signal voltage is
For CE transistor amplifier, the audio signal voltage across the collector resistance of 2 kQ is 4 V. If the current amplification factor of the transistor is 100 and the base resistance is 1 kQ, then the input signal voltage is
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
The given circuit has two ideal diodes connected as show in the figure below. The current flowing through the resistance R1 will be
The given circuit has two ideal diodes connected as show in the figure below. The current flowing through the resistance R1 will be
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt

What is the output Y in the following circuit, when all the three inputs A, B, C are first 0 and then 1?

What is the output Y in the following circuit, when all the three inputs A, B, C are first 0 and then 1?

Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
Which one of the following compounds shows the presence of intramolecular hydrogen bond?
Which one of the following compounds shows the presence of intramolecular hydrogen bond?
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
The molar conductivity of a 0.5 mol/dm3 solution of AgNO3 with electrolytic conductivity of 5.76 x 10-3 S cm-3 at 298 K is
The molar conductivity of a 0.5 mol/dm3 solution of AgNO3 with electrolytic conductivity of 5.76 x 10-3 S cm-3 at 298 K is
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt

The decomposition of phosphine (PH3) on tungsten at low pressure is a first-order reaction. It is because the

The decomposition of phosphine (PH3) on tungsten at low pressure is a first-order reaction. It is because the

Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
The coagulation values in millimoles per litre of the electrolyte used for the coagulation of As2S3 are given below
I. (NaCl)= 52, II. (BcCl2) = 0.69
III. (MgSO4) = 0.22
The correct order of their coagulating power is
The coagulation values in millimoles per litre of the electrolyte used for the coagulation of As2S3 are given below
I. (NaCl)= 52, II. (BcCl2) = 0.69
III. (MgSO4) = 0.22
The correct order of their coagulating power is
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
During the electrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 amperes is
During the electrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 amperes is
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
How many electrons can fit in the subshell for which n = 3 and l = 1?
How many electrons can fit in the subshell for which n = 3 and l = 1?
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
For a sample of perfect gas when its pressure is changed isothermally from Pi to p1, the entropy change is given by
For a sample of perfect gas when its pressure is changed isothermally from Pi to p1, the entropy change is given by
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
The van’t Hoff factor (i) for a dilute aqueous solution of the strong electrolyte barium hydroxide is
The van’t Hoff factor (i) for a dilute aqueous solution of the strong electrolyte barium hydroxide is
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
The percentage of pyridine (C5H5N) that forms pyridinium iron (C5H5N+H) In A 0.10 M aqueous pyridine solution (Kb for C5H5N = 1.7 X 10 -9) is
The percentage of pyridine (C5H5N) that forms pyridinium iron (C5H5N+H) In A 0.10 M aqueous pyridine solution (Kb for C5H5N = 1.7 X 10 -9) is
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
In calcium fluoride, having the fluorite structure, the coordination numbers for calcium ion (Ca2+) and fluoride ion (F-) are
In calcium fluoride, having the fluorite structure, the coordination numbers for calcium ion (Ca2+) and fluoride ion (F-) are
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
If the Ecell for a given reaction has a negative value, which of the following gives correct relationships for the values of ll G0 and Keq?
If the Ecell for a given reaction has a negative value, which of the following gives correct relationships for the values of ll G0 and Keq?
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
Which one of the following is incorrect for ideal solution?
Which one of the following is incorrect for ideal solution?
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
The solubility of AgCl (s) with solubility product 1.6 x 10-10 in 0.1 M NaCl solution would be
The solubility of AgCl (s) with solubility product 1.6 x 10-10 in 0.1 M NaCl solution would be
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
Suppose the elements X and Y combine to from two compounds XY2 and X3Y2. When 0.1 mole of XY2 weighs 10 g and 0.05 mole of X3Y2 weighs 9 g, the atomic weights of X and Y are
Suppose the elements X and Y combine to from two compounds XY2 and X3Y2. When 0.1 mole of XY2 weighs 10 g and 0.05 mole of X3Y2 weighs 9 g, the atomic weights of X and Y are
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere in 60 seconds is (charge on electron = 1.60x 10-19C)
The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere in 60 seconds is (charge on electron = 1.60x 10-19C)
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
Boric acid is an acid because its molecule
Boric acid is an acid because its molecule
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
AlF3 is soluble in HF only in presence of KF. It is due to the formation of
AlF3 is soluble in HF only in presence of KF. It is due to the formation of
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
Zinc can be coated on iron to produce galvanised iron but the reverse is not possible. It is because
Zinc can be coated on iron to produce galvanised iron but the reverse is not possible. It is because
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
The suspension of slaked lime in water is known as
The suspension of slaked lime in water is known as
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
The hybridisations of atomic orbitals of nitrogen in NO, NO3 and NH3 respectively are
The hybridisations of atomic orbitals of nitrogen in NO, NO3 and NH3 respectively are
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
which of the following fluoro-compounds is most likely to behave as a Lewis base?
which of the following fluoro-compounds is most likely to behave as a Lewis base?
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
Which of the following pairs of ions is isoelectronic and isostructural?
Which of the following pairs of ions is isoelectronic and isostructural?
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
In context with beryllium, which one of the following statements is incorrect?
In context with beryllium, which one of the following statements is incorrect?
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
Hot concentrated sulphuric acid is a moderately strong oxidising agent. Which of the following reaction does not show - ­oxidising behaviour?
Hot concentrated sulphuric acid is a moderately strong oxidising agent. Which of the following reaction does not show - ­oxidising behaviour?
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
Which of the following pairs of d-orbitals will have electron density along the axes?
Which of the following pairs of d-orbitals will have electron density along the axes?
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
The correct geometry and hybridization for XeF4 are
The correct geometry and hybridization for XeF4 are
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
Among the following, which one is a wrong statement?
Among the following, which one is a wrong statement?
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
The correct increasing order of trans-effect o the following species is
The correct increasing order of trans-effect o the following species is
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
Which one of the following statements related to lanthanons is incorrect?
Which one of the following statements related to lanthanons is incorrect?
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
Jahn-Teller effect is not observed in high spin complexes of
Jahn-Teller effect is not observed in high spin complexes of
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
Which of the following can be used as the halide component for Friedel-Crafts reaction?
Which of the following can be used as the halide component for Friedel-Crafts reaction?
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
In which of the following molecules, all atoms are coplanar?
In which of the following molecules, all atoms are coplanar?
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
Which one of the _following structures represents nylon 6, 6 polymer?
Which one of the _following structures represents nylon 6, 6 polymer?
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
In pyrrole

the electron density is maximum on
In pyrrole

the electron density is maximum on
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
Which of the following compounds shall not produce propene by reaction with HBr followed by elimination or direct only elimination reaction?
Which of the following compounds shall not produce propene by reaction with HBr followed by elimination or direct only elimination reaction?
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
Which one of the following nitro-compounds does not react with nitrous acid
Which one of the following nitro-compounds does not react with nitrous acid
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
The central dogma of molecular genetics states that the genetic information flows from
The central dogma of molecular genetics states that the genetic information flows from
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
The correct corresponding order of names of four aldoses with configuration given below respectively, is
 

The correct corresponding order of names of four aldoses with configuration given below respectively, is
 
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
In the given reaction

The product P is
In the given reaction

The product P is
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
A given nitrogen-containing aromatic compound A reacts with Sn/HCl, followed by HN02 to give an unstable compound B. B, on treatment with phenol, forms a beautiful coloured compound C with the molecular formula C12H10N2 0. The structure of compound A is
A given nitrogen-containing aromatic compound A reacts with Sn/HCl, followed by HN02 to give an unstable compound B. B, on treatment with phenol, forms a beautiful coloured compound C with the molecular formula C12H10N2 0. The structure of compound A is
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
Consider the reaction
CH3 CH2 CH2 Br + NaCN - CH3 CH2 CH2 CN + NaBr
This reactin will be the fastest in
Consider the reaction
CH3 CH2 CH2 Br + NaCN - CH3 CH2 CH2 CN + NaBr
This reactin will be the fastest in
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
The correct structure of the product A formed in the reaction
The correct structure of the product A formed in the reaction
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
Which among the given molecules can exhibit tautomerism?
Which among the given molecules can exhibit tautomerism?
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
The correct order of strengths of the carboxylic acids
The correct order of strengths of the carboxylic acids
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
The compound that will react most readily with gaseous bromine has the formula
The compound that will react most readily with gaseous bromine has the formula
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
Which one of the following is wrong for fungi?
Which one of the following is wrong for fungi?
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
Methanogens belong to
Methanogens belong to
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
Select the wrong statement.
Select the wrong statement.
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
The label of a herbarium sheet does not carry information on
The label of a herbarium sheet does not carry information on
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
Conifers are adapted to tolerate extreme environmental conditions because of
Conifers are adapted to tolerate extreme environmental conditions because of
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
Which one of the following statements is wrong?
Which one of the following statements is wrong?
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
The term 'polyadelphous' is related to
The term 'polyadelphous' is related to
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?
How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
Radial symmetry is found in the flowers of
Radial symmetry is found in the flowers of
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
Free-central placentation is found in
Free-central placentation is found in
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
Cortex is the region found between
Cortex is the region found between
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
The balloon-shaped structures called tyloses
The balloon-shaped structures called tyloses
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
A non-proteinaceous enzyme is
A non-proteinaceous enzyme is
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
Select the mismatch.
Select the mismatch.
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
Select the wrong statement.
Select the wrong statement.
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
A cell organelle containing hydrolytic enzyme is
A cell organelle containing hydrolytic enzyme is
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
During cell growth, DNA synthesis takes place in
During cell growth, DNA synthesis takes place in
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
Which of the following biomolecules is common to respiration-mediated breakdown of fats, carbohydrates and proteins?
Which of the following biomolecules is common to respiration-mediated breakdown of fats, carbohydrates and proteins?
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which one of the following test results indicates that it is phloem sap?
A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which one of the following test results indicates that it is phloem sap?
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?
You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
Phytochrome is a
Phytochrome is a
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
Which is essential for the growth of root tip?
Which is essential for the growth of root tip?
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
The process which makes major difference between C3 and C4 plants is
The process which makes major difference between C3 and C4 plants is
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
Which one of the following statements is not correct?
Which one of the following statements is not correct?
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
Which one of the following generates new genetic combinations leading to variation?
Which one of the following generates new genetic combinations leading to variation?
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
Match column I with column II and select the correct option using the codes given below
Match column I with column II and select the correct option using the codes given below
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
In majority of angiosperms
In majority of angiosperms
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
Pollination in water hyacinth and water lily is brought about by the agency of
Pollination in water hyacinth and water lily is brought about by the agency of
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
The ovule of an angiosperm is technically equivalent to
The ovule of an angiosperm is technically equivalent to
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
Taylor conducted the experiments to prove semi-conservative mode of chromosome replication on
Taylor conducted the experiments to prove semi-conservative mode of chromosome replication on
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
The mechanism that causes a gene to move from one linkage group to another is called
The mechanism that causes a gene to move from one linkage group to another is called
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
The equivalent of a structural gene is
The equivalent of a structural gene is
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
A true breeding plant is
A true breeding plant is
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
Which of the following rRNA act as structural RNA as well as ribozyme in bacteria?
Which of the following rRNA act as structural RNA as well as ribozyme in bacteria?
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
Stirred-tank bioreactors have been designed for
Stirred-tank bioreactors have been designed for
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
A foreign DNA and plasmid cut by the same restriction endonuclease can be joined to form a recombinant plasmid using
A foreign DNA and plasmid cut by the same restriction endonuclease can be joined to form a recombinant plasmid using
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
Which of the following is not a component of downstream processing?
Which of the following is not a component of downstream processing?
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
Which of the following restriction enzymes produces blunt ends?
Which of the following restriction enzymes produces blunt ends?
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
Which kind of therapy was given in 1990 to a four-year-old girl with Adenosine Deaminase (ADA) deficiency?
Which kind of therapy was given in 1990 to a four-year-old girl with Adenosine Deaminase (ADA) deficiency?
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
How many hotspots of biodiversity in the world have been identified till date by Norman Myers?
How many hotspots of biodiversity in the world have been identified till date by Norman Myers?
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
The primary producers of the deep-sea hydrothermal vent ecosystem are
The primary producers of the deep-sea hydrothermal vent ecosystem are
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
Which of the following is correct for r-selected species?
Which of the following is correct for r-selected species?
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
If '+' sign is assigned to beneficial interaction, '-' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by'+''-' refers to
If '+' sign is assigned to beneficial interaction, '-' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by'+''-' refers to
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
Which of the following is correctly matched?
Which of the following is correctly matched?
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
Red List contains data or information on
Red List contains data or information on
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
Which of the following sets of diseases is caused by bacteria?
Which of the following sets of diseases is caused by bacteria?
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
Match column I with column II for housefly classification and select the correct option using the codes given below:
Match column I with column II for housefly classification and select the correct option using the codes given below:
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
Choose the correct statement.
Choose the correct statement.
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
Study the four statements (I-IV) given below and select the two correct ones out of them :
I. Definition of biological species was given by Ernst Mayr.
II. Photoperiod does not affect reproduction in plants.
III. Binomial nomenclature system was given by RH Whittaker.
IV. In unicellular organisms, reproduction is synonymous with growth.
The two correct statements are
Study the four statements (I-IV) given below and select the two correct ones out of them :
I. Definition of biological species was given by Ernst Mayr.
II. Photoperiod does not affect reproduction in plants.
III. Binomial nomenclature system was given by RH Whittaker.
IV. In unicellular organisms, reproduction is synonymous with growth.
The two correct statements are
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
In male cockroaches, sperms are stored in which part of the reproductive system?
In male cockroaches, sperms are stored in which part of the reproductive system?
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
Smooth muscles are
Smooth muscles are
Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
Oxidative phosphorylation is
Oxidative phosphorylation is
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
Which of the following is the least likely to be involved in stabilising the three ­dimensional folding of most proteins?
Which of the following is the least likely to be involved in stabilising the three ­dimensional folding of most proteins?
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
Which of the following describes the given graph correctly?
Which of the following describes the given graph correctly?
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
When cell has stalled DNA replication fork, which checkpoint should be predominantly activated?
When cell has stalled DNA replication fork, which checkpoint should be predominantly activated?
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
Match the stages of meiosis in column to their characteristic features in Column II and select the correct option using the codes given below
Match the stages of meiosis in column to their characteristic features in Column II and select the correct option using the codes given below
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
Which hormone stimulate the production of pancreatic juice and bicarbonate?
Which hormone stimulate the production of pancreatic juice and bicarbonate?
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
The partial pressure of oxygen in the alveoli of the lungs is
The partial pressure of oxygen in the alveoli of the lungs is
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
Choose the correct statement.
Choose the correct statement.
Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
Graves' disease is caused due to
Graves' disease is caused due to
Q.61 Correct
Q.61 In-correct
Q.61 Unattempt
Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.
Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.
Q.62 Correct
Q.62 In-correct
Q.62 Unattempt
Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.
Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.
Q.63 Correct
Q.63 In-correct
Q.63 Unattempt
Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilisation.
Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilisation.
Q.64 Correct
Q.64 In-correct
Q.64 Unattempt
Osteoporosis, an age-related disease of skeletal system, may occur due to
Osteoporosis, an age-related disease of skeletal system, may occur due to
Q.65 Correct
Q.65 In-correct
Q.65 Unattempt
Serum differs from blood in
Serum differs from blood in
Q.66 Correct
Q.66 In-correct
Q.66 Unattempt
Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because
Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because
Q.67 Correct
Q.67 In-correct
Q.67 Unattempt
The posterior pituitary gland is not a 'true' endocrine gland because
The posterior pituitary gland is not a 'true' endocrine gland because
Q.68 Correct
Q.68 In-correct
Q.68 Unattempt

The part of nephron involved in active reabsorption of sodium is

The part of nephron involved in active reabsorption of sodium is
Q.69 Correct
Q.69 In-correct
Q.69 Unattempt
Which of the following is hormone-releasing IUD?
Which of the following is hormone-releasing IUD?
Q.70 Correct
Q.70 In-correct
Q.70 Unattempt
Which of the following is incorrect regarding vasectomy?
Which of the following is incorrect regarding vasectomy?
Q.71 Correct
Q.71 In-correct
Q.71 Unattempt
Embryo with more than 16 blastomeres formed due to in vitro fertilisation is transferred into
Embryo with more than 16 blastomeres formed due to in vitro fertilisation is transferred into
Q.72 Correct
Q.72 In-correct
Q.72 Unattempt
Which of the following depicts the correct pathway of transport of sperms?
Which of the following depicts the correct pathway of transport of sperms?
Q.73 Correct
Q.73 In-correct
Q.73 Unattempt
Match column I with column II and select the correct option using the codes given below
Match column I with column II and select the correct option using the codes given below
Q.74 Correct
Q.74 In-correct
Q.74 Unattempt
Several hormones like hCG, hPL, oestrogen, progesterone are produced by
Several hormones like hCG, hPL, oestrogen, progesterone are produced by
Q.75 Correct
Q.75 In-correct
Q.75 Unattempt
If a colourblind man marries a woman who is homozygous for normal colour vision, the probability of their son being colourblind is
If a colourblind man marries a woman who is homozygous for normal colour vision, the probability of their son being colourblind is
Q.76 Correct
Q.76 In-correct
Q.76 Unattempt
Genetic drift operates in
Genetic drift operates in
Q.77 Correct
Q.77 In-correct
Q.77 Unattempt
In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
Q.78 Correct
Q.78 In-correct
Q.78 Unattempt
The chronological order of human evolution from early to the recent is
The chronological order of human evolution from early to the recent is
Q.79 Correct
Q.79 In-correct
Q.79 Unattempt
Which of the following is the correct sequence of events in the origin of life?
I. Formation of protobionts.
II. Synthesis of organic monomers.
III. Synthesis of organic polymers.
IV. Formation of DNA-based genetic systems.
Which of the following is the correct sequence of events in the origin of life?
I. Formation of protobionts.
II. Synthesis of organic monomers.
III. Synthesis of organic polymers.
IV. Formation of DNA-based genetic systems.
Q.80 Correct
Q.80 In-correct
Q.80 Unattempt
A molecule that can act as a genetic material must fulfil the traits given below, except
A molecule that can act as a genetic material must fulfil the traits given below, except
Q.81 Correct
Q.81 In-correct
Q.81 Unattempt
DNA-dependent RNA polymerase catalyses transcription on one strand of the DNA which is called the
DNA-dependent RNA polymerase catalyses transcription on one strand of the DNA which is called the
Q.82 Correct
Q.82 In-correct
Q.82 Unattempt
Interspecific hybridisation is the mating of
Interspecific hybridisation is the mating of
Q.83 Correct
Q.83 In-correct
Q.83 Unattempt
Which of the following is correct Regarding AIDS causative agent HIV?
Which of the following is correct Regarding AIDS causative agent HIV?
Q.84 Correct
Q.84 In-correct
Q.84 Unattempt
Among the following edible fishes, which one is a marine fish having rich source of omega-3 fatty acids?
Among the following edible fishes, which one is a marine fish having rich source of omega-3 fatty acids?
Q.85 Correct
Q.85 In-correct
Q.85 Unattempt
Match column I with column II and select the correct option using the codes given below
Column 1 Column 2
A. Citric Acid 1. Trichoderma
B. Cyclosporin 2. Clostridium
C. Statins 3. Aspergillus
D. Butyric acid 4. Monascus
Match column I with column II and select the correct option using the codes given below
Column 1 Column 2
A. Citric Acid 1. Trichoderma
B. Cyclosporin 2. Clostridium
C. Statins 3. Aspergillus
D. Butyric acid 4. Monascus
Q.86 Correct
Q.86 In-correct
Q.86 Unattempt
Biochemical Oxygen Demand (BOD) may not be a good index for pollution in water bodies receiving effluents from
Biochemical Oxygen Demand (BOD) may not be a good index for pollution in water bodies receiving effluents from
Q.87 Correct
Q.87 In-correct
Q.87 Unattempt
The principle of competitive exclusion was stated by
The principle of competitive exclusion was stated by
Q.88 Correct
Q.88 In-correct
Q.88 Unattempt
Which of the following National Parks is home to the famous musk deer or hangul?
Which of the following National Parks is home to the famous musk deer or hangul?
Q.89 Correct
Q.89 In-correct
Q.89 Unattempt
A lake which is rich in organic waste may result in
A lake which is rich in organic waste may result in
Q.90 Correct
Q.90 In-correct
Q.90 Unattempt
The 'highest DDT concentration in aquatic food chain shall occur in
The 'highest DDT concentration in aquatic food chain shall occur in
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