RE-NEET (UG) 2026

A photon and an electron, each of 20 eV energy, move in free space. The ratio of linear momentum of electron pe to that of photon pPh, pepPh is: [Take speed of light = 3 108 m s-1, charge of electron = -1.6 10-19 C and mass of electron = 9 10-31 kg]

1. 275
2. 2450
3. 1250
4. 225

Water flows in a streamline motion through a horizontal pipe of circular cross-section as shown in the figure. The pressure difference of water between P and Q is 15 N m-2. The area of cross-section at P and Q are 40 cm2 and 20 cm2, respectively. The rate of flow of water through the pipe, in cm3 s-1, is: [Take density of water = 1000 kg m-3] [figure]

1. 400
2. 100
3. 200
4. 300

A thin horizontal disc is rotating about a vertical axis passing through its fixed centre O. Its angular momentum is LA and LB computed about points A and B, respectively, with OB = 2 OA. The value of LALB is: [figure]

1. 2
2. 14
3. 12
4. 1

Consider a long solenoid of length l and radius r. If n is the number of turns per unit length and 0 is the permeability of free space, the inductance of the solenoid is :

1. 2 0 n2 r2 l
2. 0 n2 r2 l
3. 0 n2 r2 l
4. ( 0/2 )n2 r2 l

The temperature of a metallic sphere of radius R is increased by a small amount T. If the linear coefficient of thermal expansion of the metal is , the approximate increase in the volume of the sphere is:

1. 6 R3 T
2. 2 R3 T
3. 3 R3 T
4. 4 R3 T

Consider two circuits, (A) and (B), each having two resistors. One of them has a positive temperature coefficient of resistance, + , while the other one has a negative temperature of coefficient, - , as shown in the figure. The current through these circuits are denoted by IA and IB. At initial temperature, the resistance of the two resistors is R0. As the temperature is increased, the correct option that describes the variation of current in these circuits is: [figure]

1. both IA and IB remain constant
2. IA remains constant while IB increases
3. IA decreases while IB increases
4. IA increases while IB decreases

A beam of light falls on a metal surface such that photo-electrons are generated. If power of the light source starts to decrease linearly with time t, then variation of the photocurrent I and magnitude of the stopping potential |V| with time is best represented by:

1. [figure]
2. [figure]
3. [figure]
4. [figure]

An ideal Zener diode with breakdown voltage of -3 V is reverse biased with a negative input voltage Vi = -5 V. The magnitude of voltage difference between point B and A is: [figure]

1. 0 V
2. 3 V
3. 2 V
4. 1 V

In the measurement of viscosity of liquids using terminal velocity experiment, spherical balls of same radius but having different densities are used. The variation of the terminal velocity (v) with the ratio of density of spherical ball ( ) to density of the liquid ( ), is best represented by:

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Two planets P1 and P2 with equal mass have radii R1 and R2, respectively, where R2 = R12. The escape speeds of P1 and P2 are v1 and v2, respectively. Then v2v1 is:

1. 2
2. 1 2
3. 1
4. 2

An ac voltage V = 220 (2 103 t) Volt is applied to a series LCR circuit. Then the current amplitude in this circuit is: (Given : L = 10 mH, C = 25 , R = 100 )

1. 22.0 A
2. 2.2 A
3. 5.5 A
4. 11.0 A

Two identical inductors are connected in two different configurations P and Q, where a time varying current I(t) is flowing, as shown in the figure. The induced emf between points a and b for configuration P is EP and that for configuration Q is EQ. The ratio EP/EQ is: [Neglect the effect of mutual inductance.] [figure]

1. 2
2. 1/4
3. ½
4. 1

Three identical capacitors, P, Q and S, each of the capacitance C, are connected to a battery of voltage V, as shown in the figure. If the energy stored in the capacitor P and total energy stored in the system are UP and UT, respectively, then the ratio UPUT is: [figure]

1. 1/6
2. 2/3
3. 1/3
4. 1/2

A conducting loop of finite resistance lies on the x-y plane. There is a constant magnetic field in the z direction. The area of the loop varies with time t, as A = A0(1 + t) in appropriate units. The figure that correctly indicates the qualitative behaviour of the power P dissipated in the loop as a function of time is:

1. [figure]
2. [figure]
3. [figure]
4. [figure]

In an adiabatic expansion, the temperature of one mole of an ideal monatomic gas ( = 5/3) decreases from 60 K to 50 K. The work done by the gas in the process is: (Take the universal gas constant as R = 8.3 J mol-1 K-1)

1. 166 J
2. 41.5 J
3. 83 J
4. 124.5 J

Consider a particle moving along a straight line, whose position as a function of time is given by s(t) = t2 - t + , where = 1 m s-2, = 6 m s-1 and = 5 m. The average speed of the particle, in m s-1 from t = 0 to t = 6 s is:

1. 0
2. 12
3. 6
4. 3

The following table presents the part of the electromagnetic spectrum and their corresponding major applications.

1. P-II, Q-IV, R-III, S-I
2. P-I, Q-II, R-III, S-IV
3. P-I, Q-IV, R-II, S-III
4. P-II, Q-I, R-IV, S-III

An ideal gas is made of polyatomic molecules. Each of the molecules has three translational, three rotational and f number of vibrational modes. If the ratio of heat capacities CP/CV of the gas is 8/7, then the value of f is:

1. 1
2. 4
3. 3
4. 2

A unit positive point charge is taken slowly through an infinitesimally thin tube that is inside a charged dielectric sphere of radius R, having uniform positive charge density , as shown in the figure. The initial and final positions of the charge are marked by A and B at distance 2R and 3R respectively, from the centre of the sphere. In this process, the magnitude of the total work done on the point charge is R2n 0. The value of n is : ( 0 is the permittivity of vacuum) [figure]

1. 18
2. 2
3. 6
4. 9

A current I0 flows through a metallic circular loop of radius r as shown in the figure. Resistance of the segment ABC is half that of ADC. Magnitude of magnetic field at the centre O of the loop is : [figure]

1. 0 I02 r
2. 0 I012 r
3. 0 I04 r
4. 0 I02 r

Bob B of mass m at rest is hanging vertically from the ceiling via a massless string of length 10 m, as shown in the figure. Point mass A of mass m travelling horizontally with speed 10 ms-1 hits bob B elastically. The bob B rises h meter after the collision. Taking the acceleration due to gravity g = 10 ms-2 and neglecting the size of the bob, the value of h is: [figure]

1. 2.5
2. 8
3. 7
4. 5

An electromagnetic wave travelling in a lossless dielectric medium having a dielectric constant, r = 9, has the electric field, Ex = E0 (kz - 2 106t) Vm-1 where E0 is the amplitude and k is the wave vector. Among the following options, the incorrect choice is

1. The direction of propagation of the electromagnetic wave is along +z
2. The speed of the electromagnetic wave inside the medium is 108 ms-1
3. The wavelength of the electromagnetic wave inside the medium is 300 m
4. The magnetic field is given by the relation By = E0v (kz - 2 106t) where v is the speed of the electromagnetic wave inside the medium

A particle of mass M moves along a horizontal x axis from x = 0 to x = L. The coefficient of kinetic friction varies as a function of x as k(x) = 0 - x, where 0, are constants of appropriate dimensions, so that k(L) = 0. The total work done by the frictional force during the motion is n 0MgL, where g is the acceleration due to gravity. The value of n is:

1. 12
2. 3
3. 1
4. 13

Consider three media P, Q and R with refractive indices 1, 1.25, and 1.5 respectively. The medium Q having a thickness of 5 cm is placed between extended media P and R as shown in the figure. An object O is placed at the centre of medium Q. If viewed from medium P near the normal direction, the apparent depth of O is h1. For similar observation from medium R, the apparent depth is h2. The value of |h1 - h2|, in cm, is: [figure]

1. 3
2. 0
3. 1
4. 2

Consider a fixed uniformly charged insulating sphere with radius R and total charge +Q. A point charge -q (q Q) with mass m is released from rest at a distance of 3R from the centre of the charged sphere. When the point charge reaches the surface of the sphere, its speed is: ( 0 is the permittivity of vacuum, neglect gravitational forces).

1. Qq4 0 mR
2. 3Qq4 0 mR
3. 2Qq3 0 mR
4. Qq3 0 mR

A car travels on a circular racetrack of radius 50 m, which is banked at an angle . If the car travels at a speed 10 ms-1, then the wear and tear on its tyres is minimum. Taking the acceleration due to gravity to be 10 ms-2, the value of is:

1. -1(2 3)
2. -1 ( 15 )
3. -1 ( 25 )
4. -1( 3/2)

A frictionless circular wire of unit radius is fixed on the horizontal plane. Two-point particles of unit mass start moving simultaneously from point A ( = 2 ) with identical uniform angular speeds in opposite directions, and meet again at point B ( = - 2 ). During this time, which of the following figures schematically represent the magnitude of the total linear momentum P of the system, as a function of ? [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Three identical p-n junction diodes D1, D2, and D3 are connected across a battery as shown in the figure. If the width of the depletion regions of D1, D2 and D3 are W1, W2 and W3, respectively, then the correct option is: [figure]

1. W2 > W1 = W3
2. W1 > W2 > W3
3. W3 = W1 > W2
4. W3 > W2 > W1

The lens combination as shown in the figure, consists of two lenses, L1 and L2, of the focal lengths +10 cm and -10 cm, respectively. The position of the image formed is: [figure]

1. 60 cm to the right of the concave lens
2. 20 cm to the left of the concave lens
3. 60 cm to the left of the concave lens
4. 30 cm to the right of the concave lens

A solid sphere A of radius R and mass M is attached at a point to a smaller solid sphere B of radius r < R and mass m < M. Assume that the line joining their centres lies along the horizontal. The moment of inertia of the system calculated about a vertical axis passing through the centre of A is IA and that calculated about a vertical axis passing through the centre of B is IB. The difference IA - IB is: [figure]

1. 0
2. (M - m)(R + r)2
3. (m - M)(R + r)2
4. (m - M)(R - r)2

Consider that an electron is revolving in an excited state of Hydrogen atom with velocity 25.6 105 ms-1. The radius of the orbit is x 10-9 m. The value of x is: [Take the mass of electron to be 9 10-31 kg, charge of electron = -1.6 10-19 C and 14 0 = 9 109 Nm2C-2]

1. 1
2. 4
3. 3
4. 2

The mean free path of molecules in an ideal gas A is half that of another ideal gas B. The diameter of the spherical molecules of gas A is twice the diameter of the molecules of B. If number densities of the gases A and B are nA and nB, respectively, the correct option is:

1. nA = 12 nB
2. nA = nB
3. nA = 2nB
4. nA = 14 nB

A cylindrical cork of uniform density floats in a liquid of density 1. If the cork is depressed slightly and released, it oscillates harmonically with time period T. If the same cork floats in another liquid of density 2, then the similar oscillation has time period 2T. The value of 2 / 1 is:

1. 1/4
2. 4
3. 2
4. 1/2

For sound waves, if the number of nodes for the 5th harmonic of an open-ended pipe is n and that for the 9th harmonic of the same pipe with one of its ends closed is m, the ratio nm is

1. 35
2. 59
3. 95
4. 1

Consider the following nuclear reaction 238U 234Th + 4He Take masses of 238U, 234Th and 4He as 238.050 u, 234.043 u and 4.003 u, respectively. The Q value for the reaction, in keV, is: [Given: 1 u = 931.5 MeV c-2]

1. 3740
2. 3726
3. 3730
4. 3736

Which of the following measurements require 'index correction'?

1. Measurement of speed of sound using resonance tube
2. Measurement of resistance of a wire using meter bridge
3. Measurement of gravitational acceleration using simple pendulum
4. Measurement of focal length of lenses using optical bench

In a solar system, the time-period of revolution of a planet tracing a circular orbit of radius R is proportional to:

1. R3
2. R1/2
3. R3/2
4. R2

Consider that s, kB, b represents Stefan-Boltzmann constant, Boltzmann constant and Wien's displacement law constant, respectively. The dimension of s kB-1 b is

1. [ L-1T-1K-4]
2. [ L-1T-1K-2]
3. [ L-1K-2]
4. [ L-1T-1K-3]

A ray of light with wavelength is incident on three different photoelectric cells namely 1, 2 and 3. The threshold wavelength of these photoelectric cells are 1, 2, and 3, respectively and the magnitude of stopping potentials of these cells are V1, V2 and V3, respectively. The relation between and threshold wavelengths are 1 < , 2 > and 3 . The correct option is:

1. V1 < V2, V3 = 0
2. V1 = 0, V2 < V3
3. V1 = 0, V2 > V3
4. V1 > V2, V3 = 0

One main scale division of a Vernier calliper is equal to 1 mm and the number of divisions on the Vernier scale is 10. When both the jaws touch each other, the Vernier scale shifts to the left of zero of the main scale in such a way that 4th Vernier division coincides with a division of the main scale. If this Vernier calliper measures the length of the wire to be 1 cm, the actual length of the wire is :

1. 1.04 cm
2. 0.60 cm
3. 0.96 cm
4. 1.00 cm

A point charge Q is placed inside a cavity within a solid isolated conducting sphere. Consider points A, B and C as shown in the figure, where the magnitudes of the electric fields are EA, EB, EC, respectively. The points B and C are at the same distance from the center of the solid sphere. The correct option is : [figure]

1. EA 0, EB < EC
2. EA = 0, EB = EC
3. EA 0, EB = EC
4. EA = 0, EB > EC

In Geiger-Marsden experiment, the number of scattered -particles N( ) is plotted as a function of scattering angle . Which of the following options represents the correct plot?

1. [figure]
2. [figure]
3. [figure]
4. [figure]

One mole of an ideal monatomic gas undergoes a cyclic process as shown in the figure. The total heat supplied to the gas is: [figure]

1. 800 J
2. 400 J
3. 500 J
4. 600 J

Two infinitely long parallel conducting wires A and B carry currents I and 2I, respectively, in the same direction. The wire A has uniform mass per unit length and lies on an insulated floor. The wire B is kept fixed at a height h above the floor. The minimum magnitude of h so that the wire A does not rise from the floor is: [g is the acceleration due to gravity and 0 is the permeability of free space.]

1. 4 0 I2 g
2. 0 I22 g
3. 0 I2 g
4. 2 0 I2 g

Consider a spring-mass simple harmonic oscillator in one dimension. The mass of the particle is m kg and the spring constant is k Nm-1. At a given instant, the extension of the spring is x-meter and the speed of the particle is v ms-1. On the x - v plane, if the graph of v as a function of x is a circle, then the correct option is:

1. k = m
2. k = 1m
3. k = m
4. k = m2

Consider the following reaction, and choose the correct option. [figure]

1. Compound P is obtained by the hydrogenation of benzoyl chloride with Pd on BaSO4
2. On treating compound P with saturated NaHCO3 solution, brisk effervescence is observed
3. Compound P can be prepared by treating benzene with anhydrous AlCl3 and CH3COCl
4. On treating with bromine water, compound P gives a white precipitate

The formula of tetraammineaquachloridocobalt(III) chloride is

1. [Co(NH3)4(H2O)Cl]Cl2
2. [Co(NH3)4Cl2] H2O
3. [Co(NH3)4]Cl3 H2O
4. [Co(NH3)4(H2O)Cl]Cl

The lanthanide ion having four unpaired electrons is (Given : Atomic numbers of Ce = 58, Nd = 60, Tb = 65 and Ho = 67)

1. Ho3+
2. Nd3+
3. Ce3+
4. Tb3+

For an elementary chemical reaction, the Arrhenius plot is given below. [figure] If the energy of activation is 6.64 kJ mol-1 and R = 8.3 J K-1 mol-1, the temperature at which the rate constant becomes e2 min-1, is

1. 250 K
2. 125 K
3. 150 K
4. 200 K

The green paramagnetic species formed by heating KMnO4 at 513 K is

1. KO2
2. K2MnO4
3. Mn3O4
4. MnO

Given below are two statements : In the light of the above statements, choose the most appropriate answer from the options given below.

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

One of the products formed in the following reaction is [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Given below are two statements : In light of the above statements, choose the most appropriate answer from the options given below.

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

Among the following options, the correct trend in the electron gain enthalpy is

1. I > Br > Cl > F
2. F > Cl > Br > I
3. Br > Cl > F > I
4. Cl > F > Br > I

Given below are two statements: (Given : oxH2 = HOOC - COOH) In light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

The correct statement about peptides and proteins is

1. In -helices, the polypeptide chain is twisted into a left-handed screw (helix) through intramolecular hydrogen bonds
2. Tertiary structure of proteins has two or more polypeptide subunits
3. Only the proteins having a quaternary structure are biologically active
4. In -pleated sheet structures, peptide chains are held together by intermolecular hydrogen bonds

Given below are two statements: In light of the above statements, choose the most appropriate answer from the options given below.

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

Identify the reactions which give aniline as the major product. Choose the correct answer from the options given below.

1. C and D only
2. A and B only
3. B and D only
4. A and C only

Two moles of an ideal gas undergo free expansion from 10 L to 100 L at 300 K. The values of Ssystem and Ssurroundings are (R is universal gas constant)

1. Ssystem = 4.606 R; Ssurroundings = 0
2. Ssystem = 0; Ssurroundings = 0
3. Ssystem = 4.606 R; Ssurroundings = -4.606 R
4. Ssystem = 0; Ssurroundings = 4.606 R

The compound that CANNOT be obtained from the aldol condensation reaction shown below, is [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The complex which has facial and meridional isomers is (Given : py = pyridine and en = H2N-CH2-CH2-NH2)

1. [Ni(en)2(H2O)2]2+
2. [Cr(py)3(Cl)3]
3. [Cr(H2O)6]3+
4. [Co(NH3)4(H2O)2]3+

The numbers 17.0145 and 21.0235 were rounded to three figures after the decimal point. The resulting numbers, respectively, are

1. 17.015 and 21.024
2. 17.014 and 21.023
3. 17.015 and 21.023
4. 17.014 and 21.024

The amount of carbon dioxide evolved upon complete combustion of 116 g of n-butane is (Given: atomic mass in amu H = 1, C = 12 and O = 16)

1. 362 g
2. 352 g
3. 322 g
4. 176 g

Consider the following schematic plots of orbital wavefunction ( r) against distance (r) from the nucleus. [figure] The figure representing two radial nodes in the orbital is

1. D
2. A
3. B
4. C

The following carbocation is stabilized by the interaction of the empty p orbital with [figure]

1. empty * and empty * orbitals
2. filled and filled orbitals
3. empty and empty * orbitals
4. empty * and filled orbitals

A 1 : 3 electrolyte in an aqueous solution is

1. [Co(NH3)3(NO2)3]
2. [CoCl2(NH3)4]Cl
3. [CoCl(NH3)5]Cl2
4. [Co(NH3)6]Cl3

The standard electrode potential (E ) for the half-cell reaction Fe3+ + e- Fe2+ at 298 K is (Given : E ( Fe3+/Fe) = -0.04 V and E ( Fe2+/Fe) = -0.44 V at 298 K)

1. +0.92 V
2. +0.40 V
3. +0.76 V
4. -0.48 V

In potash alum, the ratio of K+ and SO42- ions is

1. 3 : 2
2. 1 : 2
3. 2 : 1
4. 2 : 3

Consider the following statements about the solutions formed by mixing two liquids.

1. A and C only
2. A and B only
3. B and C only
4. A only

For a salt XY, which is a strong electrolyte, the plot of m versus c has a slope of -90.0 S cm2 mol-3/2 L1/2 at 298 K. At 0.01 M concentration of XY, the value of m is 145.0 S cm2 mol-1. The limiting molar conductivity of Y- ion ( Y-0, in S cm2 mol-1) at 298 K will be (Given : X+0 = 74.0 S cm2 mol-1)

1. 76.0
2. 80.0
3. 100.0
4. 90.0

Arrange the following compounds in the increasing order of polarity A. CH3CH2OCH2CH3 B. CH3CH2OH C. CH3COCH3 D. CH3COOH Choose the correct answer from the options given below.

1. A < C < B < D
2. A < B < C < D
3. C < A < D < B
4. C < A < B < D

According to crystal field theory, the correct order of ligands with respect to their decreasing order of field strength is

1. Cl- > NH3 > H2O > CO
2. CO > NH3 > H2O > Cl-
3. CO > H2O > NH3 > Cl-
4. Cl- > H2O > NH3 > CO

The amino acid that gives a red-blood colour on treating its sodium fusion extract with sodium nitroprusside is

1. serine
2. leucine
3. threonine
4. methionine

In an acidic medium, 10 mL of 0.25 M oxalic acid is titrated with KMnO4 solution. If the volume of KMnO4 solution required to reach end point is 10 mL, the strength of the KMnO4 solution is

1. 0.15 M
2. 0.10 M
3. 0.20 M
4. 0.25 M

The correct statement is

1. Aluminium has five valence orbitals.
2. Boron has a maximum covalency of four.
3. Beryllium has three valence orbitals.
4. Magnesium has a maximum covalency of four.

Among the following, the compound having conjugated double bonds is

1. hepta-1,6-diene
2. hepta-1,3-diene
3. hepta-1,4-diene
4. hepta-1,5-diene

2A k B is a zero-order reaction, where k = 1.0 mol L-1 min-1. If the initial concentration of A is 2 M, then the time taken to complete 75\% of the reaction will be

1. 2.0 min
2. 1.5 min
3. 0.75 min
4. 1.0 min

The correct order of solubility of the given salts in water at 298 K is array|l|l| Salt & Ksp at 298 K \ AgBr & 5.0 10-13 \ Zn(OH)2 & 1.0 10-15 \ Hg2Cl2 & 1.3 10-18 \ array

1. Zn(OH)2 > AgBr > Hg2Cl2
2. Hg2Cl2 > Zn(OH)2 > AgBr
3. AgBr > Zn(OH)2 > Hg2Cl2
4. Hg2Cl2 > AgBr > Zn(OH)2

The correct decreasing order of oxidation state of the underlined atom in each molecule is

1. P4O6 > Cl2O7 > AlH3
2. P4O10 > SO3 > H2 O
3. N2O5 > Al2O3 > H2 S
4. PbO2 > N2O3 > SO3

Consider the reversible processes for 1.0 mol of an ideal gas as shown in the figure. [figure] w1, w2, w3 and w4 represent work done (in calories) in the processes 1, 2, 3 and 4, respectively; U2 and U4 are changes in the internal energy for the processes 2 and 4, respectively. [use R = 2 cal K-1 mol-1] The correct option is

1. w1 + w2 + w3 + w4 = 0
2. w1 + w3 = -2T1 V2V1 - 2T2 V4V3
3. w2 + w4 = U2 - U4
4. w1 + w2 = 2T1 V2V1

In the light of the above statements, choose the most appropriate answer from the options given below.

1. A is not correct but R is correct
2. Both A and R are correct and R is the correct explanation of A
3. Both A and R are correct but R is NOT the correct explanation of A
4. A is correct but R is not correct

Among the species given below, the spin-only magnetic moment is highest for (Given: Atomic number of Ti = 22, Mn = 25, Fe = 26 and Co = 27)

1. [Ti(H2O)6]3+
2. [Mn(CN)6]3-
3. [Fe(CN)6]3-
4. [Co(NH3)6]3+

A protein undergoes reversible thermal denaturation from its initial state N to denatured state D according to N D. At 60 C, the concentrations of both N and D are equal at equilibrium, and the standard enthalpy change of denaturation is 666 kJ mol-1. The standard entropy change ( S in kJ K-1 mol-1) of the protein upon denaturation at 60 C is closest to

1. 11.1
2. 2.0
3. 2000.0
4. 333.0

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. In light of the above statements, choose the most appropriate answer from the options given below:

1. A is not correct but R is correct
2. Both A and R are correct and R is the correct explanation of A
3. Both A and R are correct and R is NOT the correct explanation of A
4. A is correct but R is not correct.

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. In light of the above statements, choose the most appropriate answer from the options given below:

1. A is not correct but R is correct
2. Both A and R are correct and R is the correct explanation of A
3. Both A and R are correct and R is NOT the correct explanation of A
4. A is correct but R is not correct.

Consider the following reaction sequences and choose the correct option. [figure]

1. M and N are stereoisomers
2. K and L are geometrical isomers
3. K and L are enantiomers
4. M and N are geometrical isomers

The highest occupied molecular orbital for Ne2 is

1. *2p
2. 2p
3. 2p
4. *2p

Match the species in List-I with their geometry in List-II.

1. A-III, B-II, C-I, D-IV
2. A-IV, B-III, C-I, D-II
3. A-III, B-IV, C-I, D-II
4. A-III, B-I, C-II, D-IV

Match the vitamins in List I with their sources in List II

1. A-III, B-I, C-IV, D-II
2. A-II, B-III, C-IV, D-I
3. A-IV, B-I, C-II, D-III
4. A-IV, B-II, C-I, D-III

For the following reaction sequence, choose the correct option [figure]

1. Both P and Q are carbonyl compounds
2. If P is the sodium salt of a carboxylic acid, Q is a primary alcohol
3. P and Q are aromatic compounds
4. If P gives a carboxylic acid on acidification, Q gives a poisonous gas on exposure to air and light

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

How many turns of Calvin cycle are required for the formation of three molecules of glucose?

1. 18
2. 6
3. 3
4. 1

Photorespiration reaction catalyzed by RuBisCo is shown below: RuBP + O2 3-Phosphoglycerate + X Identify “X” from the given options:

1. Malate
2. Phosphoenolpyruvate
3. 2-Phosphoglycolate
4. Oxaloacetate

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

How many molecules of pyruvic acid are produced at the end of glycolysis from 206 molecules of glucose?

1. 412
2. 206
3. 309
4. 103

Match List-I with List-II.

1. A-I, B-III, C-II
2. A-II, B-III, C-I
3. A-II, B-I, C-III
4. A-III, B-II, C-I

Mitochondrial inner membrane encloses .

1. aqueous humor
2. matrix
3. cytosol
4. mucus

Phyllotaxy is the pattern of arrangement of .

1. sepals
2. leaves
3. flowers
4. fruits

Mad cow disease is caused by .

1. Mycoplasma sp.
2. prions
3. viroids
4. Aspergillus sp.

Cell theory was formulated by .

1. Antonie Von Leeuwenhoek
2. Schleiden and Schwann
3. Robert Brown
4. Singer and Nicolson

Which of the following plant growth regulators promotes internode elongation prior to flowering in cabbage?

1. Ethephon
2. Abscisic acid
3. Gibberellin
4. Indole butyric acid

Which pigment has absorption peak at 700 nm in the photosynthetic reaction centre PS I (P700)?

1. Carotenoids
2. Chlorophyll b
3. Chlorophyll a
4. Xanthophylls

Sphenopsida class belongs to .

1. pteridophytes
2. bryophytes
3. angiosperms
4. gymnosperms

Which of the following represents the correct sequence of arrangement of bones in the lower limb of humans?

1. Femur-tarsal-patella-tibia
2. Femur-tibia-patella-tarsal
3. Patella-femur-tibia-tarsal
4. Femur-patella-tibia-tarsal

Which of the following plant growth regulators is used as herbicide?

1. Gibberellin
2. 2,4-D
3. Kinetin
4. Abscisic acid

Genus represents .

1. a group of closely related families
2. an individual plant or animal
3. a population of plants and animals
4. a group of closely related species

The plastid that stores xanthophyll is known as .

1. amyloplast
2. chloroplast
3. chromoplast
4. aleuroplast

In water, frogs respire using .

1. trachea
2. skin
3. buccal cavity
4. lungs

Which of the following is not a characteristic of chordates?

1. Presence of post anal part (tail)
2. Presence of notochord
3. Central nervous system is dorsal
4. Absence of gills

Smooth endoplasmic reticulum .

1. is a site for the synthesis of carbohydrates
2. has ribosomes attached to its surface
3. is the major site for the synthesis of lipids
4. is actively involved in protein synthesis

Which of the following are characteristics of prokaryotic cells?

1. (A), (B) and (C) only
2. (B) and (C) only
3. (A) and (C) only
4. (A), (C) and (D) only

Match List-I with List-II.

1. A-IV, B-III, C-I, D-II
2. A-III, B-IV, C-I, D-II
3. A-II, B-IV, C-I, D-III
4. A-II, B-IV, C-III, D-I

Which of the following statements related to pituitary gland are correct?

1. (B) and (C) only
2. (A) and (B) only
3. (A), (B) and (C) only
4. (C) and (D) only

Which of the following statements regarding photorespiration are correct?

1. (A) and (B) only
2. (A) and (D) only
3. (C) and (D) only
4. (B) and (D) only

Which of the following statements is incorrect?

1. Fibrinogen is produced from fibrin
2. Blood coagulates in response to an injury
3. Blood clot consists of fibrins
4. Fibrin is produced from fibrinogen

Arrange the following taxonomic categories in ascending order.

1. (F), (C), (B), (G), (D), (E), (A)
2. (G), (A), (E), (C), (B), (D), (F)
3. (A), (C), (D), (G), (F), (B), (E)
4. (G), (C), (D), (B), (E), (A), (F)

Select the correct sequence of experiments that led to a gradual understanding of photosynthesis in green plants.

1. Production of glucose role of air release of oxygen absorption spectra of chlorophyll a and b
2. Absorption spectra of chlorophyll a and b production of glucose release of oxygen role of air
3. Role of air release of oxygen production of glucose absorption spectra of chlorophyll a and b
4. Release of oxygen production of glucose absorption spectra of chlorophyll a and b role of air

Match List-I with List-II.

1. A-I, B-II, C-III, D-IV
2. A-I, B-II, C-IV, D-III
3. A-II, B-I, C-IV, D-III
4. A-II, B-I, C-III, D-IV

The number of vertebrae in a human is .

1. 206
2. 7
3. 12
4. 26

Endomembrane system includes .

1. Golgi complex, chloroplast, peroxisomes and vacuole
2. endoplasmic reticulum, Golgi complex, lysosomes and vacuole
3. endoplasmic reticulum, chloroplast, peroxisomes and vacuole
4. mitochondria, chloroplast, peroxisomes and vacuole

Length of the stem at time 0 is 20 cm. The arithmetic growth rate is 30 cm per day. What is the length of the stem at the end of the 7th day?

1. 460 cm
2. 50 cm
3. 170 cm
4. 230 cm

Match List-I with List-II.

1. A-II, B-IV, C-I, D-III
2. A-I, B-III, C-II, D-IV
3. A-III, B-II, C-I, D-IV
4. A-II, B-I, C-IV, D-III

The number of action potentials generated by sino-atrial node (SAN) in a healthy human is per minute.

1. 120–140
2. 28–30
3. 70–75
4. 100–110

Match List-I with List-II.

1. A-III, B-V, C-II, D-IV, E-I
2. A-I, B-V, C-II, D-IV, E-III
3. A-II, B-I, C-III, D-IV, E-V
4. A-II, B-III, C-V, D-I, E-IV

Which of the following is not a part of human central neural system?

1. Pericardium
2. Arachnoid
3. Dura mater
4. Pia mater

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is incorrect, but Statement II is true
2. Both Statement I and Statement II are true
3. Both Statement I and Statement II are false
4. Statement I is correct, but Statement II is false

Match List-I with List-II.

1. A-IV, B-II, C-I, D-III
2. A-II, B-IV, C-I, D-III
3. A-IV, B-II, C-III, D-I
4. A-IV, B-III, C-I, D-II

Symbiotic associations between fungi and algae are called .

1. chrysophytes
2. lichens
3. sponges
4. mycorrhiza

Which of the following is not a prokaryote?

1. Fungi
2. Bacteria
3. Blue green algae
4. Mycoplasma

Arrange the following elements in descending order of their contribution to percentage weight of the human body.

1. B, A, C, D
2. A, B, C, D
3. C, A, B, D
4. B, C, D, A

Which one of the following statements is incorrect?

1. -cells of pancreas secrete insulin
2. -cells of pancreas secrete glucagon
3. -cells of pancreas secrete insulin
4. Glucagon stimulates glycogenolysis

Which of the following are characteristic features of Solanaceae family?

1. B, C and D only
2. A, B and C only
3. D only
4. A and B only

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

The correct sequence of adult cell cycle phases is .

1. S-M-G2-G1
2. G1-G2-S-M
3. G1-M-G2-S
4. G1-S-G2-M

In frogs, the number of pairs of cranial nerves arising from the brain are .

1. 12
2. 6
3. 9
4. 10

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below:

1. A is not correct but R is correct
2. Both A and R are correct and R is the correct explanation of A
3. Both A and R are correct but R is not the correct explanation of A
4. A is correct but R is not correct

The method of directly injecting a sperm into ovum in assisted reproductive technology is called :

1. Embryo transfer (ET)
2. Gamete intra fallopian transfer (GIFT)
3. Zygote intra fallopian transfer (ZIFT)
4. Intra cytoplasmic sperm injection (ICSI)

Adaptive radiation in placental mammals and Australian Marsupials leading to similarity between distant species is an example of .

1. genetic drift
2. divergent evolution
3. convergent evolution
4. founder effect

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below:

1. A is not correct but R is correct
2. Both A and R are correct and R is the correct explanation of A
3. Both A and R are correct but R is not the correct explanation of A
4. A is correct but R is not correct

Arrange the following in descending order of number of species in the Amazonian rain forest.

1. B > A > D > C > E
2. C > B > D > E > A
3. D > A > C > B > E
4. E > B > A > C > D

Sponges exchange O2 with CO2 by .

1. gills
2. simple diffusion over their entire body surfaces
3. moist cuticle
4. tracheal tubes

For a person with blood group 'O', which of the following is not a possible combination of parents' blood group genotypes?

1. Father : IA IB and Mother : IA i
2. Father : IA i and Mother : IA i
3. Father : IA i and Mother : IB i
4. Father : IB i and Mother : IB i

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

Which of the following is used as an effective sedative and painkiller for treating post-surgery patients?

1. Anti-retroviral drugs
2. Interferon
3. Antibiotics
4. Morphine

Which of the following plants produces non-albuminous seeds?

1. Pea
2. Wheat
3. Maize
4. Barley

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below:

1. A is not correct but R is correct
2. Both A and R are correct and R is the correct explanation of A
3. Both A and R are correct but R is not the correct explanation of A
4. A is correct but R is not correct

The covering of ovum at ovulation is .

1. chorion
2. endometrium
3. zona radiata
4. zona pellucida

Which of the following is used as a clot buster?

1. Statins
2. Streptokinase
3. Penicillin
4. Cyclosporin A

Which of the following structure is not a part of the male reproductive system?

1. Infundibulum
2. Rete testis
3. Epididymis
4. Vasa efferentia

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

The opening between the right atrium and the right ventricle is guarded by .

1. sino-atrial node
2. bicuspid valve
3. tricuspid valve
4. semilunar valve

Which of the following is not evidence for evolution?

1. Divergent evolution of anatomical structures such as forelimbs
2. Convergent evolution of traits like wings of birds and butterflies
3. Paleontological evidence from fossil records
4. Embryological support for evolution as proposed by Ernst Haeckel

The inactive form of Bt toxin is converted to the active form in the insect gut

1. by nucleases
2. due to alkaline pH
3. due to acidic pH
4. by proteases

Colostrum, secreted by mother during initial days of lactation, is abundant in .

1. IgD
2. IgG
3. IgM
4. IgA

Which of the following in female gametophyte of an angiosperm helps in guiding the pollen tube for fertilizing the eggs?

1. Polar nucleus
2. Antipodals
3. Synergids
4. Central cells

Which of the following diseases is not sexually transmitted?

1. Genital warts
2. Syphilis
3. Tuberculosis
4. Gonorrhoea

Which of the following statements about lac-operon is correct?

1. Galactose can act as an inducer of lac operon
2. Gene i is constitutively expressed
3. Lactose activates repressor to bind to the operator
4. Genes i, z, y and a share single common promoter

Match List-I with List-II.

1. A-IV, B-I, C-III, D-II
2. A-II, B-I, C-IV, D-III
3. A-I, B-II, C-IV, D-III
4. A-III, B-IV, C-II, D-I

A population of diploid organisms is at Hardy-Weinberg equilibrium. If the frequency of allele A is 0.1, the frequency of AA is .

1. 0.99
2. 0.01
3. 0.02
4. 0.10

Sperm motility is due to .

1. muscular movement
2. flagellar movement
3. ciliary movement
4. amoeboid movement

Consider a population of 10 million cells. Given the per-capita birth rate of 0.002 (per unit time) and the per-capita death rate of 0.002 (per unit time), the expected number of cells after 10 generations is .

1. 100 million
2. 1 million
3. 5 million
4. 10 million

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below:

1. A is false but R is true
2. Both A and R are correct and R is the correct explanation of A
3. Both A and R are true, but R is not the correct explanation of A
4. A is true but R is false

Muscle contraction is initiated by a signal sent by the central nervous system by the release of .

1. cyclic adenosine monophosphate
2. acetylcholine
3. acetyl coenzyme A
4. cyclic guanosine monophosphate

Which of the following hormones is not secreted by human placenta?

1. LH
2. hCG
3. Estrogen
4. Progesterone

Which of the following statements is correct about Plasmodium?

1. Fertilization takes place in mosquito gut
2. Reproduces sexually in liver cells
3. Reproduces sexually in RBCs
4. Gametocytes develop in mosquito gut

Which of the following are primary consumers in a food chain?

1. Carnivores
2. Parasites
3. Predators
4. Herbivores

Which of the following statements about the reabsorption process in Henle's loop are correct?

1. A, B and D only
2. A and B only
3. B, C and D only
4. A, B and C only

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below:

1. A is not correct but R is correct
2. Both A and R are correct and R is the correct explanation of A
3. Both A and R are correct but R is not the correct explanation of A
4. A is correct but R is not correct

Which of the following is the correct order of arrangement of vertebral column from the head to toe?

1. Cervical vertebra, thoracic vertebra, lumbar vertebra, sacrum
2. Cervical vertebra, thoracic vertebra, sacrum, lumbar vertebra
3. Sacrum, lumbar vertebra, thoracic vertebra, cervical vertebra
4. Cervical vertebra, lumbar vertebra, thoracic vertebra, sacrum

Match List-I with List-II.

1. A-III, B-I, C-II, D-IV
2. A-III, B-IV, C-II, D-I
3. A-I, B-II, C-III, D-IV
4. A-II, B-I, C-IV, D-III

If the diploid chromosome number of typical angiosperm is 36, what would be the chromosome number in its endosperm?

1. 72
2. 18
3. 36
4. 54

Which of the following enzymes synthesizes precursor mRNA?

1. DNA polymerase
2. RNA polymerase I
3. RNA polymerase II
4. RNA polymerase III

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

How many thecae are present in each lobe of a typical bilobed angiosperm anther?

1. 12
2. 2
3. 6
4. 8

Natural selection can lead to .

1. A and C only
2. A only
3. A, C and D only
4. A, B, C and D

Which of the following statements are correct?

1. B and C only
2. A, B and C
3. A and B only
4. A and C only

Match List-I with List-II.

1. A-IV, B-III, C-I, D-II
2. A-III, B-IV, C-II, D-I
3. A-III, B-IV, C-I, D-II
4. A-II, B-IV, C-I, D-III

Which of the following are secondary lymphoid organs?

1. A and D only
2. A and B only
3. B and C only
4. B and D only

During PCR, primers bind to the DNA strands in the step.

1. ligation
2. denaturation
3. extension
4. annealing

Given below are two statements: In the light of the above statements, choose the correct answer from the options given below:

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect