MHT CET 2025 9 April Shift 1 Question Paper (Available): Download Question Paper (PCB) with Answers PDF

When forward bias is applied to a p-n junction, then the potential barrier and the width of the depletion region respectively.

• (A)

  increases, increases.

• (B)

  decreases, increases.

• (C)

  increases, decreases.

• (D)

  decreases, decreases.

Four solid spheres each of mass ' \(m\) ' and radius ' \(r\) ' are arranged as shown in the figure. The moment of inertia of the system about the given axis of rotation \(\mathrm{AA}^1\) is

• (A)

  \(\frac{13}{5}\mathrm{mr}^{2}\)

• (B)

  \(\frac{16}{5}\mathrm{mr}^{2}\)

• (C)

  \(\frac{18}{5}\mathrm{mr}^{2}\)

• (D)

  \(\frac{21}{5}\mathrm{mr}^{2}\)

A wave is travelling in the negative x direction having displacement 3 cm along Y direction, wavelength \(2 \pi \mathrm{~m}\) and frequency \(\left(\frac{1}{2 \pi}\right) \mathrm{Hz}\) is represented as ( \(t=\) time)

• (A)

  \(3\mathrm{sin}(\mathrm{x}+\mathrm{t})\mathrm{m}\)

• (B)

  \(3\times 10^{-2}\mathrm{sin}(x+t)m\)

• (C)

  \(3\mathrm{sin}(x+2t)m\)

• (D)

  \(3\times 10^{-3}\mathrm{sin}(x+2t)\mathrm{m}\)

A straight wire of mass ' M ' and length 2 m is placed in a magnetic field of 2 T which is acting perpendicular to the length of the wire. When a current of 1 A flows through the wire, the wire experiences an upthrust and leviates in a magnetic field. The mass ' \(M\) ' of the wire is (acceleration due to gravity \(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2\) )

• (A)

  0.4 gram

• (B)

  40 gram

• (C)

  400 gram

• (D)

  0.04 gram

A photon and an electron have equal energy ' \(E\) '. The ratio of wavelength of photon to wavelength of electron is proportional to

• (A)

  \(\frac{1}{\mathrm{E}}\)

• (B)

  \(\sqrt{E}\)

• (C)

  E

• (D)

  \(\frac{1}{\sqrt{\mathrm{E}}}\)

If the shape of the liquid surface is curved, then the

• (A)

  pressure on the convex side is equal to the atmospheric pressure.

• (B)

  pressure on the convex side is equal to the pressure on the concave side.

• (C)

  pressure on the concave side is greater than that on the convex side.

• (D)

  pressure on the concave side is lesser than that on the convex side.

' n ' polarising sheets are arranged such that each makes an angle \(45^{\circ}\) with the proceeding sheet. An unpolarised light of intensity I is incident into this arrangement. The output intensity is I/ 64 . The value of \(n\) will be \(\left(\cos 45^{\circ}=1 / \sqrt{2}\right)\)

• (A)

  6

• (B)

  5

• (C)

  4

• (D)

  8

An alternating voltage \(\mathrm{V}=100 \sqrt{2} \sin (50 \mathrm{t})\) is connected to \(2 \mu \mathrm{~F}\) capacitor through a.c. ammeter. The reading of the ammeter is

• (A)

  20 mA

• (B)

  2 mA

• (C)

  10 mA

• (D)

  0.2 mA

A gas at \(800^{\circ} \mathrm{C}\) is cooled until both its pressure and volume are halved. The final temperature of the gas will be

• (A)

  473 K

• (B)

  373.25 K

• (C)

  293.29 K

• (D)

  268.25 K

When the r.m.s. velocity of a gas is denoted by ' V ' and temperature of the gas by T , which of the following relations is TRUE?

• (A)

  \(\mathrm{VT}^{2}=\) constant

• (B)

  \(\frac{\mathrm{V}}{\mathrm{T}^{2}}=\) constant

• (C)

  \(\frac{\mathrm{V}^{2}}{\text{ }\mathrm{T}}=\) constant

• (D)

  \(\mathrm{V}^{2}\cdot \text{ }\mathrm{T}=\) constant

An inductor of 0.5 mH , capacitor of \(20 \mu \mathrm{~F}\) and resistance of \(20 \Omega\) are connected in series with a 220 V a.c. source. If the current is in phase with e.m.f., the maximum current in the circuit is \(\sqrt{x} A\). The value of \(x\) is

• (A)

  2

• (B)

  121

• (C)

  242

• (D)

  11

A particle vibrating simple harmonically has an acceleration of \(16 \mathrm{~cm} / \mathrm{s}^2\), when it is at a distance of 4 cm from the mean position. Its periodic time is

• (A)

  1 s

• (B)

  2.572 s

• (C)

  3.142 s

• (D)

  6.028 s

Two inductors of 88 mH each are joined in parallel. The current passing through this combination is 4 A . The energy stored in this combination of inductors in joule is

• (A)

  0.176

• (B)

  0.352

• (C)

  0.704

• (D)

  0.880

In a projectile motion shown in figure, which one of the following statements is NOT CORRECT?

• (A)

  The acceleration in the vertical direction is same at points A and B .

• (B)

  The velocity is minimum at B .

• (C)

  The vertical velocity is same at A and B .

• (D)

  The horizontal velocity is same at A and B.

A string of length \(L\) is fixed at one end and carries a mass m at the other end. The string makes \(\frac{3}{\pi}\) revolutions per second around the vertical axis through the fixed end. The tension in the string is

• (A)

  8 mL

• (B)

  12 mL

• (C)

  24 mL

• (D)

  36 mL

When three capacitors of capacitances ' C ', ' 2 C '? and ' 3 C ' are connected in series. The potential difference applied across the combination is ' \(V\) '. The energy stored in the circuit is

• (A)

  \(\frac{1}{11}\mathrm{CV}^{2}\)

• (B)

  \(\frac{3}{11}\mathrm{CV}^{2}\)

• (C)

  \(\frac{5}{11}\mathrm{CV}^{2}\)

• (D)

  \(\frac{7}{11}\mathrm{CV}^{2}\)

In the spectrum of hydrogen atom the ratio of the longest wavelength in the Balmer series to the longest wavelength in the Lyman series is

• (A)

  \(\frac{9}{4}\)

• (B)

  \(\frac{4}{9}\)

• (C)

  \(\frac{27}{5}\)

• (D)

  \(\frac{5}{27}\)

A spherical liquid drop of radius R is divided into 64 equal droplets. If surface tension is \(T\) then the work done in this process will be

• (A)

  \(8\pi R^{2}T\)

• (B)

  \(12\pi R^{2}T\)

• (C)

  \(4\pi R^{2}T\)

• (D)

  \(16\pi R^{2}T\)

A lens of power +5 D is put in contact with a lens of power -3 D . The combination will behave like a

• (A)

  convergent lens of focal length 75 cm .

• (B)

  divergent lens of focal length 16 cm .

• (C)

  convergent lens of focal length 50 cm .

• (D)

  divergent lens of focal length 40 cm .

A glass capillary of radius 0.35 mm is inclined at \(60^{\circ}\) with the vertical in water. The length of water column in the capillary tube is (surface tension of water \(=7 \times 10^{-2} \mathrm{Nm}^{-1}\), acceleration due to gravity \(=10 \mathrm{~m} / \mathrm{s}^2, \cos 0^{\circ}=1\), \(\cos 60^{\circ}=0.5\), density of water \(=1 \mathrm{gram} / \mathrm{cm}^3\) )

• (A)

  16 cm

• (B)

  4 cm

• (C)

  8 cm

• (D)

  0.8 cm

In a given circuit, AB is a uniform potentiometer wire. If the value of resistance ' \(R\) ' is slightly increased, the balance point

• (A)

  shifts towards \(B\)

• (B)

  shifts towards A

• (C)

  will not change

• (D)

  will not be obtained

In common emitter configuration, \(\beta, \mathrm{R}_{\mathrm{L}}\) and r are the a.c. current gain, load resistance and the input resistance of a transistor respectively. The voltage and power gain respectively are

• (A)

  \(\beta \frac{r}{R_{L}},\beta ^{2}\frac{r}{R_{L}}\)

• (B)

  \(\beta \frac{\mathrm{r}}{\mathrm{R}_{\mathrm{L}}},\beta (\frac{\mathrm{r}}{\mathrm{R}_{\mathrm{L}}})^{2}\)

• (C)

  \(\beta \frac{R_{L}}{r},\beta ^{2}\frac{R_{L}}{r}\)

• (D)

  \(\beta \frac{R_{L}}{r},\beta (\frac{R_{L}}{r})^{2}\)

A rigid body weighs 25 gram and has a measured volume of \(5 \mathrm{~cm}^3\). The possible error in the measurement of mass and volume are 0.01 gram and \(0.1 \mathrm{~cm}^3\). The maximum error in the density will be

• (A)

  \(24\%\)

• (B)

  \(2.4\%\)

• (C)

  \(4.02\%\)

• (D)

  \(2.04\%\)

The average kinetic energy of a molecule of the gas is

• (A)

  proportional to pressure.

• (B)

  proportional to volume.

• (C)

  proportional to absolute temperature.

• (D)

  dependent on the nature of the gas.

In an a.c. circuit \(I=50 \sin 100 \pi t\). The time required for the current to achieve its peak value will be

• (A)

  \(\frac{1}{50}\text{ }\mathrm{s}\)

• (B)

  \(\frac{1}{100}\text{ }\mathrm{s}\)

• (C)

  \(\frac{1}{200}\text{ }\mathrm{s}\)

• (D)

  \(\frac{1}{400}\text{ }\mathrm{s}\)

The average velocity of a particle performing S.H.M. in one complete vibration is ( \(\mathrm{A}=\) amplitude of S.H.M., \(\omega=\) angular velocity)

• (A)

  zero

• (B)

  \(\mathrm{A}\omega\)

• (C)

  \(\frac{\mathrm{A}\omega}{2}\)

• (D)

  \(\frac{\mathrm{A}\omega ^{2}}{2}\)

The range of voltmeter of resistance \(300 \Omega\) is 5 V . The resistance required to be connected to convert it into an ammeter of range 5 A is nearly

• (A)

  \(1\Omega\) in series

• (B)

  \(1\Omega\) in parallel

• (C)

  \(0.1\Omega\) in series

• (D)

  \(0.1\Omega\) in parallel

The value of acceleration due to gravity (g) becomes \(\left(\frac{g}{3}\right)\) at height ' \(h\) ' above the earth's surface. If ' R ' is the radius of earth, the height h will be equal to

• (A)

  \(\sqrt{3}\mathrm{R}\)

• (B)

  3 R

• (C)

  \((\sqrt{3}-1)\mathrm{R}\)

• (D)

  \((\sqrt{3}+1)R\)

A bicycle wheel of diameter ' \(D\) ' has ' \(N\) ' number of spokes. Wheel is rotating at the rate of ' \(x\) ' revolutions per minute, perpendicular to the horizontal component of earth's magnetic field ' \(\mathrm{B}_{\mathrm{H}}\) '. The e.m.f. induced between the rim and the centre of the wheel will be

• (A)

  \(\frac{\mathrm{B}_{\mathrm{H}}\pi \mathrm{Dx}}{120}\)

• (B)

  \(\frac{\mathrm{B}_{\mathrm{H}}\pi \mathrm{Dx}}{240}\)

• (C)

  \(\frac{B_{H}\pi D^{2}x}{240}\)

• (D)

  \(\frac{\mathrm{B}_{\mathrm{H}}\pi \mathrm{D}^{2}\mathrm{x}}{120}\)

Four thin rods of same mass M and same length L form a square as shown in figure. Moment of inertia of this system about an axis passing through point O and perpendicular to its plane is

• (A)

  \(\frac{4}{3}\mathrm{ML}^{2}\)

• (B)

  \(\frac{\mathrm{ML}^{2}}{3}\)

• (C)

  \(\frac{\mathrm{ML}^{2}}{6}\)

• (D)

  \(\frac{2}{3}\mathrm{ML}^{2}\)

Two spherical black bodies of radius \(\mathrm{R}_1\) and \(\mathrm{R}_2\) with surface temperatures \(\mathrm{T}_1\) and \(\mathrm{T}_2\) respectively. If \(T_1=2 T_2\) and they radiate the same power then relation between \(R_1\) and \(R_2\) is

• (A)

  \(R_{2}=8R_{1}\)

• (B)

  \(\mathrm{R}_{2}=\mathrm{R}_{1}\)

• (C)

  \(R_{2}=2R_{1}\)

• (D)

  \(R_{2}=4R_{1}\)

A simple pendulum has mass 2 gram and charge \(2 \mu \mathrm{C}\). In a uniform horizontal electric field of intensity \(1000 \mathrm{~V} / \mathrm{m}\), pendulum is at rest. At equilibrium, the angle made by the pendulum with the vertical is ( \(\mathrm{g}=\) acceleration due to gravity \(=10 \mathrm{~m} / \mathrm{s}^2\) )

• (A)

  \(\mathrm{tan}^{-1}(0.2)\)

• (B)

  \(\mathrm{tan}^{-1}(0.1)\)

• (C)

  \(\mathrm{tan}^{-1}(0.4)\)

• (D)

  \(\mathrm{tan}^{-1}(0.5)\)

A mass ' \(M\) ' is suspended from a spring of negligible mass. The spring is pulled a little and then released so that the mass executes S.H.M. of periodic time ' \(T\) '. If the mass is increased by ' \(m\) ', the time period becomes \(4 T / 3\), then the ratio of \(\frac{\mathrm{M}}{\mathrm{m}}\) is

• (A)

  \(3:1\)

• (B)

  \(9:7\)

• (C)

  \(7:9\)

• (D)

  \(1:3\)

The energy of a photon is equal to the kinetic energy of proton. If \(\lambda_1\) is the de-Broglie wavelength of a proton, \(\lambda_2\) is the wavelength associated with the photon and if E is the energy of photon then \(\lambda_2: \lambda_1\) is

• (A)

  \(1:\sqrt{3\mathrm{E}}\)

• (B)

  \(1:\sqrt{E}\)

• (C)

  \(\sqrt{\mathrm{E}}:1\)

• (D)

  \(\sqrt{3E}:1\)

In an adiabatic change, the pressure and temperature of a diatomic gas are related as \(\mathrm{P} \propto \mathrm{T}^{\mathrm{c}}\), where c is a constant. The value of c is (consider gas molecules are rigid)

• (A)

  \(\frac{9}{7}\)

• (B)

  \(\frac{7}{2}\)

• (C)

  \(\frac{5}{2}\)

• (D)

  \(\frac{4}{3}\)

If \(|\vec{A} \times \vec{B}|=\sqrt{3}(\vec{A} \cdot \vec{B})\) then the value of \(|\vec{A}+\vec{B}|\) is \(\left(\tan 60^{\circ}=\sqrt{3}, \cos 60^{\circ}=0.5\right)\)

• (A)

  \((A^{2}+B^{2}+\frac{AB}{\sqrt{3}})^{\frac{1}{2}}\)

• (B)

  \((A^{2}+B^{2}+AB)^{\frac{1}{2}}\)

• (C)

  \((A^{2}+B^{2}+\sqrt{3}AB)^{\frac{1}{2}}\)

• (D)

  \(\mathrm{A}+\mathrm{B}\)

In an interference experiment, the phase difference between the waves reaching a first dark point is

• (A)

  zero

• (B)

  \(\pi ^{\mathrm{c}}\)

• (C)

  \((\frac{3\pi}{2})^{\mathrm{c}}\)

• (D)

  \((2\pi )^{c}\)

The magnetic field at the centre of a current carrying circular coil of area ' \(A\) ' is ' \(B\) '. The magnetic moment of the coil is \(x\) times \(\left(2 B / \mu_0\right)\). The value of \(x\) is ( \(\mu_0=\) permeability of free space)

• (A)

  \((\frac{\mathrm{A}}{\pi ^{2}})^{\frac{1}{3}}\)

• (B)

  \((\frac{\pi ^{3}}{A^{3}})^{\frac{1}{2}}\)

• (C)

  \((\frac{\pi ^{2}}{\text{ }\mathrm{A}^{2}})^{\frac{1}{3}}\)

• (D)

  \((\frac{A^{3}}{\pi})^{\frac{1}{2}}\)

A capacitor of capacitance ' C ' is connected across a.c. source of voltage V as \(\mathrm{V}=\mathrm{V}_0 \sin \omega \mathrm{t}\). The displacement current between the plates of the capacitor would be

• (A)

  \(V_{0}\omega C\mathrm{cos}\omega t\)

• (B)

  \(\frac{V_{0}}{\omega C}\mathrm{sin}\omega t\)

• (C)

  \(\frac{V_{0}}{\omega C}\mathrm{cos}\omega t\)

• (D)

  \(\mathrm{V}_{0}\omega \mathrm{Csin}\omega \mathrm{t}\)

The series limit for the frequency of Balmer series is ' \(\mathrm{v}_{\mathrm{B}}\) ', then the series limit frequency of Paschen series ' \(v_p\) ' is

• (A)

  \(\frac{2}{9}\mathrm{v}_{\mathrm{B}}\)

• (B)

  \(\frac{9}{4}\mathrm{v}_{\mathrm{B}}\)

• (C)

  \(\frac{4}{9}\mathrm{v}_{\mathrm{B}}\)

• (D)

  \(\frac{2}{3}\text{ }\mathrm{V}_{\mathrm{B}}\)

In Young's double slit experiment, the intensities at two points, for the path difference \(\frac{\lambda}{4}\) and \(\frac{\lambda}{3}\) are \(\mathrm{I}_1\) and \(\mathrm{I}_2\) respectively. If \(\mathrm{I}_0\) denotes the intensity produced by each one of the individual slits then the ratio \(\left(\mathrm{I}_1+\mathrm{I}_2\right): \mathrm{I}_0\) is \(\left(\cos 45^{\circ}=1 / \sqrt{2}\right)\left(\cos 60^{\circ}=0.5\right)\)

• (A)

  2

• (B)

  3

• (C)

  4

• (D)

  1

A system is compressed adiabatically, then its temperature

• (A)

  increases.

• (B)

  decreases.

• (C)

  becomes zero.

• (D)

  remains constant.

A solenoid has core of a material with relative permeability 301 and its winding carries a current of 2 A . The number of turns of the solenoid is 600 per metre. The magnetization of the material is

• (A)

  \(3.6\times 10^{-5}\text{ }\mathrm{A}/\mathrm{m}\)

• (B)

  \(3.6\times 10^{5}\text{ }\mathrm{A}/\mathrm{m}\)

• (C)

  \(1.8\times 10^{-5}\text{ }\mathrm{A}/\mathrm{m}\)

• (D)

  \(1.8\times 10^{5}\text{ }\mathrm{A}/\mathrm{m}\)

Two points on a travelling wave having frequency 500 Hz and velocity \(300 \mathrm{~m} / \mathrm{s}\) are \(30^{\circ}\) out of phase, then the minimum distance between the two points is

• (A)

  0.02 m

• (B)

  0.01 m

• (C)

  0.05 m

• (D)

  0.1 m

The charges are arranged at the four corners of square \(A B C D\) of side ' \(d\) ' as shown in figure. The work required to put this arrangement together is given by

• (A)

  \(\frac{-9q^{2}}{4\pi \epsilon _{0}d}\)

• (B)

  \(\frac{-7q^{2}}{4\pi \epsilon _{0}d}\)

• (C)

  \(\frac{-q^{2}}{4\pi \epsilon _{0}d}[9-2\sqrt{2}]\)

• (D)

  \(\frac{-q^{2}}{4\pi \epsilon _{0}d}[9+2\sqrt{2}]\)

If current ' i ' is passing through the solenoid of diameter ' \(d\) ' having number of turns per unit length ' \(n\) ', then the inductance per unit length near the middle of a long solenoid is directly proportional to

• (A)

  d and n

• (B)

  \(\mathrm{d}^{2}\) and n

• (C)

  d and \(\mathrm{n}^{2}\)

• (D)

  \(\mathrm{d}^{2}\) and \(\mathrm{n}^{2}\)

Force is applied to a body of mass 2 kg at rest on a frictionless horizontal surface as shown in the force against time \((\mathrm{F}-\mathrm{t})\) graph. The speed of the body after 1 s is

• (A)

  \(2\text{ }\mathrm{m}/\mathrm{s}\)

• (B)

  \(4\text{ }\mathrm{m}/\mathrm{s}\)

• (C)

  \(6\text{ }\mathrm{m}/\mathrm{s}\)

• (D)

  \(10\text{ }\mathrm{m}/\mathrm{s}\)

The order of (a) transformer (b) diode rectifier (c) filter (d) voltage regulator in a block diagram of simple rectifier circuit is as

• (A)

  d

• (B)

  a

• (C)

  c

• (D)

  b

A simple harmonic progressive wave is given by \(y=A \sin 2 \pi\left(n t-\frac{x}{\lambda}\right)\). If the wave velocity is equal to \(=\frac{1}{3}\) (maximum particle velocity) then the wavelength \(\lambda\) is given by

• (A)

  \(\frac{2\pi \text{ }\mathrm{A}}{3}\)

• (B)

  \(\frac{\pi \mathrm{A}}{3}\)

• (C)

  \(\frac{5\pi \text{ }\mathrm{A}}{3}\)

• (D)

  \(\frac{7\pi \text{ }\mathrm{A}}{3}\)

Which of the following is water gas shift reaction?

• (A)

  \(2\mathrm{H}_{2}\mathrm{O}_{(\mathrm{l})}\xrightarrow{\text{ electrolysis }}2\mathrm{H}_{2}(\text{ }\mathrm{g})+\mathrm{O}_{2}(\text{ }\mathrm{g})\)

• (B)

  \(\mathrm{CH}_{4(\text{ }\mathrm{g})}+\mathrm{H}_{2}\mathrm{O}_{(\mathrm{g})}\xrightarrow{\mathrm{Ni}}\mathrm{CO}_{(\mathrm{g})}+3\mathrm{H}_{2(\text{ }\mathrm{g})}\)

• (C)

  \(\mathrm{C}_{(\mathrm{s})}+\mathrm{H}_{2}\mathrm{O}_{(\mathrm{g})}\longrightarrow \mathrm{CO}_{(\mathrm{g})}+\mathrm{H}_{2(\text{ }\mathrm{g})}\)

• (D)

  \(\mathrm{CO}_{(\mathrm{g})}+\mathrm{H}_{2}\mathrm{O}_{(\mathrm{g})}\xrightarrow[\text{ Iron chromate }]{673\text{ }\mathrm{K}}\mathrm{CO}_{2(\text{ }\mathrm{g})}+\mathrm{H}_{2(\text{ }\mathrm{g})}\)

Which from following amino acids is synthesized in our body?

• (A)

  Proline

• (B)

  Phenylalanine

• (C)

  Methionine

• (D)

  Valine

Calculate the energy of photon in electromagnetic radiation having wavelength \(400 \mathrm{~nm}\left(\mathrm{~h}=6.626 \times 10^{-34} \mathrm{Js} ; \mathrm{c}=3 \times 10^8 \mathrm{~ms}^{-1}\right)\).

• (A)

  \(4.061\times 10^{-19}\text{ }\mathrm{J}\)

• (B)

  \(4.969\times 10^{-19}\text{ }\mathrm{J}\)

• (C)

  \(5.226\times 10^{-19}\text{ }\mathrm{J}\)

• (D)

  \(4.118\times 10^{-19}\text{ }\mathrm{J}\)

The conductivity of 0.1 M KCl solution at \(23^{\circ} \mathrm{C}\) is \(0.012 \Omega^{-1} \mathrm{~cm}^{-1}\).

• (A)

  \(0.60\text{ }\mathrm{cm}^{-1}\)

• (B)

  \(2.4\times 10^{-4}\text{ }\mathrm{cm}^{-1}\)

• (C)

  \(6.0\times 10^{-4}\text{ }\mathrm{cm}^{-1}\)

• (D)

  \(2.4\times 10^{-2}\text{ }\mathrm{cm}^{-1}\)

\(60 \%\) of a first order reaction is completed in 60 minute. What is the time taken by reactant to decompose half of its original amount?

• (A)

  30.6 minute

• (B)

  20.2 minute

• (C)

  45.3 minute

• (D)

  60.1 minute

The osmotic pressure of equimolar concentration of \(\mathrm{CaCl}_2\) and urea at same temperature are 0.6 atm and 0.25 atm respectively. Calculate van't Hoff factor for \(\mathrm{CaCl}_2\).

• (A)

  2.0

• (B)

  2.4

• (C)

  2.7

• (D)

  3.0

Which from following is an example of intensive property?

• (A)

  Density

• (B)

  Mass

• (C)

  Internal energy

• (D)

  Number of moles

What is EAN of Mn in \(\mathrm{Mn}(\mathrm{CO})_5\) ?

• (A)

  35

• (B)

  36

• (C)

  34

• (D)

  37

Which of the following on reaction with Grignards reagent followed by hydrolysis forms secondary alcohol?

• (A)

  HCHO

• (B)

  \(\mathrm{CH}_{3}-\mathrm{CHO}\)

• (C)

  \(\mathrm{CH}_{3}-\mathrm{CO}-\mathrm{CH}_{3}\)

• (D)

  \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CO}-\mathrm{CH}_{3}\)

Identify inner transition element from following.

• (A)

  Hf

• (B)

  Mo

• (C)

  No

• (D)

  Zr

Identify the electrolyte from following so that \(\wedge_0\) is not obtained from the graphical variation of \(\wedge\) against \(\sqrt{\mathrm{C}}\) ?

• (A)

  KCl

• (B)

  \(\mathrm{H}_{2}\mathrm{SO}_{4}\)

• (C)

  \(\mathrm{CH}_{3}\mathrm{COOK}\)

• (D)

  \(\mathrm{NH}_{4}\mathrm{OH}\)

Identify the quantity of carbohydrate units formed after hydrolysis of n mole lactose.

• (A)

  \(2n\) Glucose

• (B)

  \(n\) Glucose \(+n\) Galactose

• (C)

  3n Glucose

• (D)

  \(n\) Glucose \(+n\) fructose

24 g carbon react with oxygen to produce 88 g carbon dioxide. Find the amount of oxygen used.

• (A)

  16 g

• (B)

  32 g

• (C)

  48 g

• (D)

  64 g

Which of the following statements is NOT true about vacancy defect?

• (A)

  It arises when a particle is missing from its regular site in the crystal lattice during crystallisation.

• (B)

  The vacancy defect can also be developed when the substance is heated.

• (C)

  In this the mass of substance decreases.

• (D)

  The density of crystal remains same when vacancy defect is created.

Which of the following is the most abundant chalcogens?

• (A)

  Oxygen

• (B)

  Sulphur

• (C)

  Selenium

• (D)

  Tellurium

What is the number of moles of ' C ' atoms and ' H ' atoms respectively present in n mole molecule represented as follows?

• (A)

  \(n\) and n

• (B)

  \(2n\) and \(2n\)

• (C)

  \(2n\) and \(n\)

• (D)

  \(3n\) and n

For a certain reaction, \(\Delta \mathrm{H}^{\circ}=219 \mathrm{~kJ}\) and \(\Delta \mathrm{S}^{\circ}=-21 \mathrm{JK}^{-1}\). Find the value of \(\Delta \mathrm{G}^{\circ}\).

• (A)

  202.74 kJ

• (B)

  -312.74 kJ

• (C)

  225.26 kJ

• (D)

  -325.06 kJ

Identify product P in following reaction. Acetamide \(+4[\mathrm{H}] \xrightarrow{\mathrm{Na}_2-\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}} \mathrm{P}\)

• (A)

  Methanamine

• (B)

  Acetonitrile

• (C)

  Ethanamine

• (D)

  Ethanoic acid

What is IUPAC name of glyoxal?

• (A)

  Ethanedial

• (B)

  Propanedial

• (C)

  Prop-2-enal

• (D)

  2-Methylpropanal

Which from following is a biodegradable polymer?

• (A)

• (B)

• (C)

• (D)

Identify an aldehyde used in margarine and food for its buttery odour.

• (A)

  Benzaldehyde

• (B)

  Butyraldehyde

• (C)

  Cinnamaldehyde

• (D)

  Oxaldehyde

Consider the reaction

• (A)

  \(1.1\times 10^{-2}\text{ }\mathrm{moldm}^{-3}\text{ }\mathrm{s}^{-1}\)

• (B)

  \(2.2\times 10^{-2}\text{ }\mathrm{moldm}^{-3}\text{ }\mathrm{s}^{-1}\)

• (C)

  \(3.3\times 10^{-2}\text{ }\mathrm{moldm}^{-3}\text{ }\mathrm{s}^{-1}\)

• (D)

  \(4.4\times 10^{-2}\text{ }\mathrm{moldm}^{-3}\text{ }\mathrm{s}^{-1}\)

Calculate the number of electrons required to reduce completely \(0.1 \mathrm{~mol} \mathrm{Al}^{+3}\) ions from aqueous \(\mathrm{Al}_2\left(\mathrm{SO}_4\right)_3\) solution.

• (A)

  \(1.806\times 10^{23}\)

• (B)

  \(3.011\times 10^{22}\)

• (C)

  \(6.022\times 10^{22}\)

• (D)

  \(3.011\times 10^{23}\)

Which of the following compounds has highest lattice energy?

• (A)

  CsF

• (B)

  KF

• (C)

  NaF

• (D)

  RbF

Identify linear polymer from following.

• (A)

  High density polymer

• (B)

  Low density polymer

• (C)

  Bakelite

• (D)

  Melamine

What is the maximum number of ester linkages in a triglyceride?

• (A)

  4

• (B)

  3

• (C)

  2

• (D)

  1

Identify the compound from following so that Ostwald's dilution law is NOT applicable to it.

• (A)

  NaOH

• (B)

  \(\mathrm{NH}_{4}\mathrm{OH}\)

• (C)

  \(\mathrm{H}_{2}\mathrm{CO}_{3}\)

• (D)

  \(\mathrm{H}_{2}\text{ }\mathrm{S}\)

What is the number of alkyl groups attached with N -atom of amines formed when 4 n moles of alkyl halide treated with n mole alc. \(\mathrm{NH}_3\) at 373 K ?

• (A)

  4

• (B)

  3

• (C)

  2

• (D)

  1

Which among the following is vinylic halide?

• (A)

  \(\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{X}\)

• (B)

  \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{X}\)

• (C)

  \(\mathrm{CH}_{3}-\mathrm{C}\equiv \mathrm{C}-\mathrm{X}\)

• (D)

  \(\mathrm{C}_{6}\mathrm{H}_{5}-\mathrm{CH}_{2}-\mathrm{X}\)

Which from following is a transition element and also included as post actinoid element?

• (A)

  Rf

• (B)

  Lu

• (C)

  Cd

• (D)

  Hf

What is the number of electrons released in conversion of \(\mathrm{C}_2 \mathrm{O}_4^{2-}\) to \(\mathrm{CO}_2\) ?

• (A)

  2

• (B)

  4

• (C)

  6

• (D)

  5

Which from following is the strongest haloacetic acid?

• (A)

  Fluoroacetic acid

• (B)

  Bromoacetic acid

• (C)

  Chloroacetic acid

• (D)

  Iodoacetic acid

Which of the following alkanes does NOT exhibit structural isomerism?

• (A)

  Propane

• (B)

  Butane

• (C)

  Pentane

• (D)

  Hexane

Calculate the volume occupied by a particle in simple cubic unit cell if the total volume of unit cell is \(4.0 \times 10^{-23} \mathrm{~cm}^3\).

• (A)

  \(1.5\times 10^{-23}\text{ }\mathrm{cm}^{3}\)

• (B)

  \(2.9\times 10^{-23}\text{ }\mathrm{cm}^{3}\)

• (C)

  \(2.1\times 10^{-23}\text{ }\mathrm{cm}^{3}\)

• (D)

  \(3.7\times 10^{-23}\text{ }\mathrm{cm}^{3}\)

Which of the following gas has high percentage by volume in air?

• (A)

  \(\mathrm{O}_{2}\)

• (B)

  \(\mathrm{N}_{2}\)

• (C)

  \(\mathrm{CO}_{2}\)

• (D)

  Ar

The rate law for the reaction, \(x \mathrm{~A}+y \mathrm{~B} \longrightarrow \mathrm{mP}+\mathrm{nQ}\), is \(\mathrm{r}=\mathrm{k}[\mathrm{A}]^{\mathrm{c}} \times[\mathrm{B}]^{\mathrm{d}}\) What is the overall order of reaction?

• (A)

  \((x+y)\)

• (B)

  \((m+n)\)

• (C)

  \((\mathrm{c}+\mathrm{d})\)

• (D)

  \(\frac{x}{y}\)

Calculate the molal elevation constant of water if boiling point of 0.7 m solution of non volatile solute is 373.5 K .

• (A)

  \(0.4\text{ }\mathrm{K}\text{ }\mathrm{kg}\text{ }\mathrm{mol}^{-1}\)

• (B)

  \(0.25\text{ }\mathrm{K}\text{ }\mathrm{kg}\text{ }\mathrm{mol}^{-1}\)

• (C)

  \(0.5\text{ }\mathrm{K}\text{ }\mathrm{kg}\text{ }\mathrm{mol}^{-1}\)

• (D)

  \(0.60\text{ }\mathrm{K}\text{ }\mathrm{kg}\text{ }\mathrm{mol}^{-1}\)

Calculate the work done in following reaction.

• (A)

  \(4988.4\text{ }\mathrm{J}\)

• (B)

  \(-1247.1\text{ }\mathrm{J}\)

• (C)

  2494.2 J

• (D)

  3741.3 J

At 298 K pH of a solution is 13 . What is the number of \(\mathrm{H}_3 \mathrm{O}^{+}\)ions present in one mL of this solution?

• (A)

  \(6.022\times 10^{7}\)

• (B)

  \(5.020\times 10^{8}\)

• (C)

  \(7.022\times 10^{13}\)

• (D)

  \(1\times 10^{13}\)

Which of the following compounds has highest boiling point?

• (A)

  1-Bromobutane

• (B)

  1-Bromo-2-methylpropane

• (C)

  2-Bromobutane

• (D)

  2-Bromo-2-methylpropane

Identify the ligands present Pentaamminecarbonatocobalt(III)chloride.

• (A)

  \(\mathrm{NH}_{3}\) and \(\mathrm{Cl}^{-}\)

• (B)

  \(\mathrm{Cl}^{-}\)and \(\mathrm{CO}_{3}^{--}\)

• (C)

  \(\mathrm{CO}_{3}^{--}\)and \(\mathrm{NH}_{3}\)

• (D)

  \(\mathrm{NH}_{3},\mathrm{CO}_{3}^{--}\)and \(\mathrm{Cl}^{-}\)

Identify zero-dimensional nanostructure from examples given below.

• (A)

  Nanotubes

• (B)

  Fibres

• (C)

  Nanowires

• (D)

  Quantum dot

Which of the following is false regarding adsorption?

• (A)

  Concentration of adsorbate is high only at the surface of adsorbent.

• (B)

  It is dependent on temperature and pressure.

• (C)

  It is accompanied by evolution of heat.

• (D)

  It is independent of surface area.

What is the molecular formula of following compound?

• (A)

  \(\mathrm{C}_{6}\mathrm{H}_{6}\mathrm{Cl}_{6}\)

• (B)

  \(\mathrm{C}_{6}\mathrm{Cl}_{6}\)

• (C)

  \(\mathrm{C}_{6}\mathrm{H}_{12}\mathrm{Cl}_{6}\)

• (D)

  \(\mathrm{C}_{6}\mathrm{H}_{3}\mathrm{Cl}_{6}\)

What is the name of t-butyl alcohol according to carbinol system?

• (A)

  Methyl carbinol

• (B)

  Ethyl carbinol

• (C)

  Propyl carbinol

• (D)

  Trimethyl carbinol

In ionic solid, anions are arranged in ccp array and cations occupy all the octahedral voids. What is the formula of ionic compound? [consider \(\mathrm{A}=\) cation; \(\mathrm{B}=\) anion]

• (A)

  \(\mathrm{AB}_{3}\)

• (B)

  \(\mathrm{A}_{2}\text{ }\mathrm{B}_{3}\)

• (C)

  \(\mathrm{AB}_{4}\)

• (D)

  AB

Which of the following is secondary benzylic alcohol?

• (A)

  \(\mathrm{C}_{6}\mathrm{H}_{5}\mathrm{CH}_{2}-\mathrm{OH}\)

• (B)

  \(\mathrm{C}_{6}\mathrm{H}_{5}\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{OH}\)

• (C)

• (D)

  \(\text{ }\mathrm{C}_{6}\mathrm{H}_{5}-\mathrm{C}-(\mathrm{CH}_{3})_{2}-\mathrm{OH}\)

Which of the following hydride of chalcogens has lowest bond angle and highest bond length?

• (A)

  \(\mathrm{H}_{2}\text{ }\mathrm{S}\)

• (B)

  \(\mathrm{H}_{2}\mathrm{Se}\)

• (C)

  \(\mathrm{H}_{2}\mathrm{Te}\)

• (D)

  \(\mathrm{H}_{2}\mathrm{O}\)

What type of solution is the benzoic acid in benzene?

• (A)

  Solid as solvent and solid as solute.

• (B)

  Liquid as solvent and solid as solute.

• (C)

  Solid as solvent and liquid as solute.

• (D)

  Liquid as solute and liquid as solvent.

The solubility product of \(\mathrm{PbI}_2\) is \(2.8 \times 10^{-8}\). Calculate its solubility in \(\mathrm{mol} \mathrm{dm}^{-3}\).

• (A)

  \(1.323\times 10^{-3}\)

• (B)

  \(1.912\times 10^{-3}\)

• (C)

  \(7.912\times 10^{-3}\)

• (D)

  \(7.323\times 10^{-23}\)

Any foreign substance invading body and capable of stimulating an immune response is _________ .

• (A)

  antibody

• (B)

  antibiotic

• (C)

  antigen

• (D)

  anticoagulant

Identify the labels ' X ', \({ }^{\prime} \mathrm{Y}^{\prime}\) and ' Z ' in following figure.

• (A)

  X - Styles, Y - Prop roots, Z - Tassel

• (B)

  X - Prop roots, Y - Styles, Z - Tassel

• (C)

  X - Prop roots, Y - Tassel, Z - Styles

• (D)

  X - Tassel, Y - Prop roots, Z - Styles

Which of the following statements are correct regarding chromosomal basis of sex determination?

• (A)

  i, ii and v only

• (B)

  iii and iv only

• (C)

  i, ii and iv only

• (D)

  ii, iv and v only

Which of the following is INCORRECT in case of severe haemorrhage?

• (A)

  Osmoreceptors in hypothalamus stimulate ADH secretion.

• (B)

  ADH stimulates reabsorption of water from last part of DCT and entire collecting duct.

• (C)

  Urine volume increases.

• (D)

  Osmolarity of blood decreases.

Select the INCORRECT statements.

• (A) i and iv only
• (B) ii and iii only
• (C) i, iii and iv only
• (D) i, ii and iv only

Following table shows ABO blood group in man. Observe carefully and identify 'P', 'Q' and ' R '.

• (A)

  \(\mathrm{P}-\mathrm{I}^{\mathrm{A}}\mathrm{I}^{\mathrm{A}}, \mathrm{Q}-\mathrm{AB}, \mathrm{R}-\) antibody a

• (B)

  \(\mathrm{P}-\mathrm{I}^{\mathrm{A}}\mathrm{I}^{\mathrm{B}}, \mathrm{Q}-\mathrm{NIL}, \mathrm{R}-\) antibody b

• (C)

  \(\mathrm{P}-\mathrm{I}^{\mathrm{B}}\mathrm{I}^{\mathrm{B}}, \mathrm{Q}-\mathrm{B}, \mathrm{R}-\mathrm{NIL}\)

• (D)

  \(\mathrm{P}-\mathrm{I}^{\mathrm{O}}\mathrm{I}^{\mathrm{A}}, \mathrm{Q}-\mathrm{A}, \mathrm{R}-\) antibody ab

In the above logistic growth curve of population, identify ' \(A\) ', ' \(B\) ' and ' \(C\) '.

• (A)

  A - Stationary phase, B - Log phase, C - Lag phase

• (B)

  A - Lag phase, B - exponential phase, C - Stationary phase

• (C)

  A - Log phase, B - Lag phase, C - Diminishing growth phase

• (D)

  A - Log phase, B - Stationary phase, C - Lag phase

Given below are two statements.

• (A)

  Both statement I and statement II are correct.

• (B)

  Both statement I and statement II are incorrect.

• (C)

  Statement I is correct but statement II is incorrect.

• (D)

  Statement I is incorrect but statement II is correct.

Following changes occur during the successive seral stages of ecological succession EXCEPT _______

• (A)

  change in the diversity of species of organism.

• (B)

  decrease in total biomass.

• (C)

  increase in total biomass.

• (D)

  increase in the number of species and organisms.

What is the time duration required for completion of one PCR Cycle?

• (A)

  1 to 2 minutes

• (B)

  3 to 4 minutes

• (C)

  5 to 6 minutes

• (D)

  7 to 8 minutes

Gland which was considered vestigial but later found to produce melatonin is _________

• (A)

  Thyroid gland

• (B)

  Pineal gland

• (C)

  Pituitary gland

• (D)

  Parathyroid gland

Stomatal transpiration takes place during day time in the following plants EXCEPT __________

• (A)

  lotus

• (B)

  mango

• (C)

  grass

• (D)

  cactus

Given below are two statements.

• (A)

  Both statement I and statement II are correct.

• (B)

  Both statement I and statement II are incorrect.

• (C)

  Statement I is correct but statement II is incorrect.

• (D)

  Statement I is incorrect but statement II is correct.

A graph shows effect of substrate concentration on enzyme activity. In this graph ' Y ' axis represents.

• (A)

  Temperature

• (B)

  Velocity of reaction

• (C)

  Time

• (D)

  pH

When a biotic agent is bat, the pollination is called

• (A)

  ornithophily

• (B)

  entomophily

• (C)

  anemophily

• (D)

  chiropterophily

In Glycolysis, which one of the following conversion shows ATP formation?

• (A) Glucose- 6 - phosphate \(\rightarrow\) Fructose - 6 phosphate
• (B) 3-PGA \(\rightarrow\) 2-PGA
• (C) Phosphoenol pyruvate \(\rightarrow\) Pyruvate
• (D) 2 - PGA \(\rightarrow 2\) - Phosphoenol pyruvate

Match the Columns I, II and III based an excretion.

• (A)

  \(\mathrm{a}-\mathrm{i}-\mathrm{r},\mathrm{b}-\mathrm{ii}-\mathrm{q},\mathrm{c}-\mathrm{iii}-\mathrm{p}\)

• (B)

  \(a-ii-p,b-i-q,c-iii-r\)

• (C)

  \(a-i-r,b-iii-p,c-ii-q\)

• (D)

  a - ii - q, b - iii - p, c-i - r

Which type of mutation causes sickle cell anaemia?

• (A)

  Inversion

• (B)

  Duplication

• (C)

  Frame - shift

• (D)

  Point

Which of the following is NOT an acrosomal reaction?

• (A)

  Formation of cone of reception.

• (B)

  Production of weak wave of depolarization in egg.

• (C)

  Release of zona lysin.

• (D)

  Formation of fertilizin - antifertilizin complex.

Growth of the pollen tube in ovule is guided by the secretions of

• (A)

  polar nuclei

• (B)

  egg

• (C)

  antipodals

• (D)

  synergids

Which of the following is NOT the function of erythrocytes?

• (A)

  Transport of \(\mathrm{CO}_{2}\)

• (B)

  Maintenance of viscosity of blood

• (C)

  Maintenance of pH of blood

• (D)

  Secretion of antitoxins

If dark period is interrupted by a flash of red light of 660 nm , then SDP will not flower. But if it is immediately followed by _________ then SDP will flower.

• (A)

  far red light of 660 nm

• (B)

  far red light of 730 nm

• (C)

  red light of 660 nm

• (D)

  red light of 730 nm

The purposeful manipulation in the heredity of crops and the production of new superior varieties of existing crop plants is called ___________

• (A)

  genetics

• (B)

  traditional biotechnology

• (C)

  horticulture

• (D)

  plant breeding

The quantity of CO and hydrocarbons in the exhaust of a motor vehicle can be reduced by installing ____________ in it.

• (A)

  iii only

• (B)

  ii and iii

• (C)

  i only

• (D)

  i and ii

Given below is a list of hormones. How many of the following are hypothalamic hormones?

• (A)

  2

• (B)

  3

• (C)

  4

• (D)

  6

If you cross two heterozygous plants, how many of the all possible \(F_1\) offsprings will also be heterozygous?

• (A)

  All

• (B)

  Half

• (C)

  \(3/4^{\text{th }}\)

• (D)

  \(1/4^{\text{th }}\)

Small intestine opens into large intestine at the junction of _________

• (A)

  duodenum and jejunum

• (B)

  Stomach and duodenum

• (C)

  ileum and caecum

• (D)

  jejunum and ileum

Which one of the following is NOT a prime element?

• (A)

  Carbon

• (B)

  Oxygen

• (C)

  Hydrogen

• (D)

  Nitrogen

Germ pores of pollen grains are useful for

• (A)

  absorption of water during seed germination

• (B)

  emerging of radicle during seed germination

• (C)

  entry of pollen tube into ovule

• (D)

  growth of emerging pollen tube during germination of pollen grains

Primary urine contains all of the following, EXCEPT

• (A)

  Blood cells and vitamins

• (B)

  Proteins and amino acids

• (C)

  Glucose and sulphate salts

• (D)

  Blood cells and macro molecules like proteins

Given below are two statements.

• (A)

  Both statement I and statement II are correct.

• (B)

  Both statement I and statement II are incorrect.

• (C)

  Statement I is correct but statement II is incorrect.

• (D)

  Statement I is incorrect but statement II is correct.

Resting potential of an axon is ___________ .

• (A)

  -20 millivolts

• (B)

  -70 millivolts

• (C)

  +60 millivolts

• (D)

  +140 millivolts

The figure shows photoperiodism. Identify its correct explanation from the following.

• (A)

  Short day plants flower

• (B)

  Short day plants do not flower

• (C)

  Long day plants do not flower

• (D)

  Day neutral plants do not flower

Water constitutes about ______________to ____________ \(\%\) of plant cells and tissues.

• (A)

  50 to 60

• (B)

  65 to 70

• (C)

  75 to 85

• (D)

  90 to 95

Arrange the following events of chemical evolution in proper sequence.

• (A)

  i \(\rightarrow\) iii \(\rightarrow\) iv \(\rightarrow\) ii

• (B)

  iv \(\rightarrow\) i \(\rightarrow\) iii \(\rightarrow\) ii

• (C)

  ii \(\rightarrow\) iii \(\rightarrow\) i \(\rightarrow\) iv

• (D)

  ii \(\rightarrow\) i \(\rightarrow\) iii \(\rightarrow\) iv

A molecule of triglyceride is composed of

• (A)

  one glycerol and three fatty acids

• (B)

  one glycerol and one fatty acid

• (C)

  one glycerol and two fatty acids

• (D)

  three glycerol and one fatty acid

About _________ percentage of starch gets converted to maltose in mouth.

• (A)

  \(10\%\)

• (B)

  \(20\%\)

• (C)

  \(30\%\)

• (D)

  \(50\%\)

Total number of ATP molecules formed by substrate level phosphorylation in complete oxidation of one glucose molecule are ___________.

• (A)

  2

• (B)

  4

• (C)

  6

• (D)

  8

Which of the following pairs are haploid structures?

• (A)

  Nucellus and microspore

• (B)

  Antipodal cells and megaspore mother cells

• (C)

  Nucellus and antipodal cells

• (D)

  Egg cell and antipodal cells

Match the Column I and II

• (A)

  i - b, ii - c, iii - d, iv - a

• (B)

  i - b, ii - a, iii - c, iv - d

• (C)

  i-c, ii-d, iii-a, iv-b

• (D)

  i - b, ii - c, iii - a, iv - d

Subcutaneous Filariasis is caused by __________

• (A)

  Plasmodium vivax

• (B)

  Loa loa

• (C)

  Ascaris lumbricoides

• (D)

  Entamoeba histolytica

Which of the following organic acid is used in medicine for solubility of \(\mathrm{Ca}^{++}\)?

• (A)

  Citric acid

• (B)

  Gluconic acid

• (C)

  Fumaric acid

• (D)

  Acetic acid

Given below are two statements.

• (A)

  Both statement I and statement II are correct.

• (B)

  Both statement I and statement II are incorrect.

• (C)

  Statement I is correct but statement II is incorrect.

• (D)

  Statement I is incorrect but statement II is correct.

Which one of the following neurohypophyseal hormones brings about increase in BP?

• (A)

  Antidiuretic Hormone

• (B)

  Aldosterone

• (C)

  Oxytocin

• (D)

  ACTH

Glycine is coded by GGA in prokaryotic cell, it will code for ________ in eukaryotic cell.

• (A)

  Leucine

• (B)

  Valine

• (C)

  Glycine

• (D)

  Alanine

Sexually reproduced offsprings tend to differ from their parents. This is known as __________

• (A)

  cloning

• (B)

  mutation

• (C)

  heredity

• (D)

  variation

Which of the following is correct regarding cystine stones?

• (A)

  i and ii only

• (B)

  ii, iii and iv only

• (C)

  iii and v only

• (D)

  ii and v only

Which one of the following enters mitochondrial matrix after glycolysis?

• (A)

  Glucose

• (B)

  Pyruvic acid

• (C)

  Acetyl CoA

• (D)

  Oxaloacetic acid

Match a type of artificial method of vegetative reproduction given in Column I with examples given in Column II.

• (A)

  i - c, ii - d, iii - a, iv - b

• (B)

  i - c, ii - b, iii - d, iv -a

• (C)

  i - c, ii - a, iii - d, iv - b

• (D)

  i - a, ii - d, iii - c, iv - b

Symptoms like disappearance of subcutaneous fat, prominent ribs, dry skin and atrophy of digestive glands are seen in one year old infant. Identify the disease this child is suffering from

• (A)

  Kwashiorkor

• (B)

  Marasmus

• (C)

  Nephritis

• (D)

  Cretinism

The following forms of water EXCEPT _________ water is NOT available to plants for absorption.

• (A)

  gravitational

• (B)

  capillary

• (C)

  hygroscopic

• (D)

  combined

Identify the mRNA transcribed from the DNA having following nucleotide sequence.

• (A)

• (B)

• (C)

• (D)

Due to formation of oxyhaemoglobin, the pH of blood decreases due to release of \(\mathrm{H}^{+}\)ion and the \(\mathrm{H}_2 \mathrm{CO}_3\) dissociates into \(\mathrm{H}_2 \mathrm{O}\) and \(\mathrm{CO}_2\). This is called __________ .

• (A)

  Hamburger's phenomenon

• (B)

  Bohr effect

• (C)

  Haldane effect

• (D)

  Sewall Wright effect

Given below are two statements.

• (A)

  Both statement I and statement II are correct.

• (B)

  Both statement I and statement II are incorrect.

• (C)

  Statement I is correct but statement II is incorrect.

• (D)

  Statement I is incorrect but statement II is correct.

The famous wine of Goa, traditionally called 'fenny', is made by fermenting the fleshy pedicels of __________ fruits.

• (A)

  Cashew

• (B)

  Jack

• (C)

  Fig

• (D)

  Banana

Disorder caused due to accumulation of amyloid proteins in CNS is ___________

• (A)

  Alzheimer's disease

• (B)

  Cushing's disease

• (C)

  Parkinson's disease

• (D)

  Addison's disease

In genetic engineering, the foreign DNA is also called ___________ .

• (A)

  vector DNA

• (B)

  cDNA

• (C)

  passenger DNA

• (D)

  r-DNA

Excessive dosage of ____________ causes extreme happiness, irritability and paranoia

• (A)

  Cannabinoids

• (B)

  Opioids

• (C)

  Cocaine

• (D)

  Lysergic acid

The blastocyst stage of development is reached by the end of ___________ day.

• (A)

  \(5^{\text{th }}\)

• (B)

  \(6^{\text{th }}\)

• (C)

  \(7^{\text{th }}\)

• (D)

  \(8^{\text{th }}\)

Pongidae includes \(\qquad\)

• (A)

  baboons, macaques, langur

• (B)

  lemurs, tarsiers, spider monkeys

• (C)

  squirrel monkey, Gibbons, semi arboreal apes

• (D)

  gorilla, chimpanzee, orangutan

How many times dehydrogenation occurs during Krebs cycle?

• (A)

  One

• (B)

  Two

• (C)

  Three

• (D)

  Four

Which of the following covering of testis originates from peritoneum?

• (A)

  Tunica adventitia

• (B)

  Tunica albuginea

• (C)

  Tunica vaginalis

• (D)

  Tunica vasculosa

In a dihybrid cross, \(9: 3: 3: 1\) ratio, denotes that ___________.

• (A)

  it is a polygenic inheritance

• (B)

  alleles of two genes are linked to each other

• (C)

  alleles of two genes are segregated independently

• (D)

  it is a case of multiple alleles

How does the Hb act as buffer?

• (A)

  By forming \(\mathrm{HbCO}_{2}\)

• (B)

  By forming HHb

• (C)

  By forming \(\mathrm{NaHCO}_{3}\)

• (D)

  By forming \(\mathrm{HbO}_{2}\)

Which one of the following genetically engineered microorganisms, used for clearing oil spills in the sea, was given first biopatent?

• (A)

  E. coli

• (B)

  Pseudomonas

• (C)

  Agrobacterium

• (D)

  Bacillus

The current loss of biodiversity which is progressing at an alarming rate is estimated to be ________ to __________ times faster than prehuman times.

• (A)

  10 to 100

• (B)

  50 to 100

• (C)

  100 to 1000

• (D)

  1000 to 10000

Which of the following statements is INCORRECT regarding macula lutea?

• (A)

  It has fovea centralis at its centre.

• (B)

  It has maximum density of cone cells.

• (C)

  It is the area of retina from where optic nerve leaves the eyeball.

• (D)

  It is a place of formation of sharpest vision.

Spores of which one of the microbial biocontrol agents are used to get rid of butterfly?

• (A)

  Beauveria bassiana

• (B)

  Entomophthora pallidaroseum

• (C)

  Zoopthora radicans

• (D)

  Bacillus thuringiensis

In oliguria condition, urine output is less than ___________.

• (A)

  400 ml /day

• (B)

  800 ml /day

• (C)

  \(1000\mathrm{ml}/\) day

• (D)

  1200 ml /day

With respect to spermatogenesis, match Column I with Column II and select the correct option.

• (A)

  i-b, ii -c, iii -d, iv -a

• (B)

  i - b, ii - a, iii - d, iv - c

• (C)

  i-a, ii-b, iii-c, iv-d

• (D)

  i - b, ii - c, iii - d, iv -a

Match concepts of origin of life in Column I with their examples given in Column II.

• (A)

  i - b, ii - c, iii - d, iv - a

• (B)

  i - a, ii - b, iii - d, iv - c

• (C)

  i - c, ii - b, iii -a, iv -d

• (D)

  i - d, ii - c, iii - b, iv -a

Which one of the following represents qualitative growth in plants?

• (A)

  Increase in dry weight

• (B)

  Increase in number of cells

• (C)

  Differentiation of cells

• (D)

  Increase in volume

The smallest WBC is __________.

• (A)

  neutrophil

• (B)

  basophil

• (C)

  monocyte

• (D)

  lymphocyte

Given below are two statements about absorption of water in plants.

• (A)

  Both statement I and statement II are correct.

• (B)

  Both statement I and statement II are incorrect.

• (C)

  Statement I is correct but statement II is incorrect.

• (D)

  Statement I is incorrect but statement II is correct.

Select the mismatched pair

• (A)

  Gastrin - stimulates secretion of gastric juice

• (B)

  GIP - inhibits gastric secretion

• (C)

  Secretin - inhibits glucagon and insulin secretion

• (D)

  CCK - induces satiety

Given below are two statements.

• (A)

  Both statement I and statement II are correct.

• (B)

  Both statement I and statement II are incorrect.

• (C)

  Statement I is correct but statement II is incorrect.

• (D)

  Statement I is incorrect but statement II is correct.

Given below are two statements.

• (A)

  Both statement I and statement II are correct.

• (B)

  Both statement I and statement II are incorrect.

• (C)

  Statement I is correct but statement II is

• (D)

  Statement I is incorrect but statement II is incorrect. correct.

Select the correct statements regarding sympathetic nervous system.

• (A)

  i and ii

• (B)

  iii and \(v\)

• (C)

  v and iv

• (D)

  ii and iv

The amount of ________ determines the pattern of ecological succession in the given area.

• (A)

  soil

• (B)

  water

• (C)

  light

• (D)

  minerals

If 10 ml of the blood sample of a healthy person, containing added anticoagulant, is subjected to centrifugation, then approximately how much will be the amount of plasma?

• (A)

  7 ml

• (B)

  5 to 5.5 ml

• (C)

  4 to 4.3 ml

• (D)

  3 ml

Interaction between flamingos visiting Mumbai west coast and resident fishes is of _________ type.

• (A)

  mutualism

• (B)

  competition

• (C)

  amensalism

• (D)

  predation

Following are the limitations of ecological pyramids EXCEPT __________ .

• (A)

  it does not accommodate a food web.

• (B)

  it shows relationship between the organism of trophic level.

• (C)

  it assumes a simple food chain that never existed.

• (D)

  saprophytes are not given any place.

Which one of the following hormones is a modified amino acid?

• (A)

  Thyroxine

• (B)

  Oxytocin

• (C)

  Estrogen

• (D)

  Parathormone

Which of the following pairs of organisms are ureotelic?

• (A)

  Sharks and rays.

• (B)

  Aquatic reptiles and Osteichthyes.

• (C)

  Adult amphibians and land snails.

• (D)

  Birds and mammals.

The core DNA in the nucleosome is _________ base pairs long

• (A)

  126

• (B)

  146

• (C)

  176

• (D)

  200

Match the concepts given in Column I with their scientist who proposed them given in Column II.

• (A)

  i - c, ii - d, iii - a, iv - b

• (B)

  i - c, ii - a, iii - b, iv - d

• (C)

  i-a, ii-b, iii-d, iv-c

• (D)

  i - d, ii - c, iii - a, iv - b

Darwin's finches are good example of ____________

• (A)

  connecting link

• (B)

  adaptive radiation

• (C)

  convergent evolution

• (D)

  industrial melanism

If the sequence of gene loci on a chromosome are A-B-C-D-E-O-T. Which of the following gene pair will have least probability of being inherited together?

• (A)

  C and D

• (B)

  A and T

• (C)

  A and B

• (D)

  \(\mathrm{O}\) and T

Given below are two statements.

• (A)

  Both statement I and statement II are correct.

• (B)

  Both statement I and statement II are incorrect.

• (C)

  Statement I is correct but statement II is incorrect.

• (D)

  Statement I is incorrect but statement II is correct.

Which one of the following is INCORRECT regarding 'resource partitioning'?

• (A)

  It occurs when two species compete for same resources.

• (B)

  Competition can be avoided by choosing different times for feeding.

• (C)

  It promotes co-existence.

• (D)

  It works on exclusion principle.

Which one of the following is NOT a traditional knowledge passed down through generations?

• (A)

  Farming practices

• (B)

  Conservation of biological diversity

• (C)

  Biologically important medicines

• (D)

  Use of genetically engineered microorganism for cleaning oil spills.

Match the Column I with Column II with reference to biomagnification of DDT.

• (A)

  i-b, ii -d, iii -c, iv -a

• (B)

  i-b, ii -c, iii -d, iv -a

• (C)

  i-c, ii-b, iii-a, iv-d

• (D)

  i-d, ii -b, iii - c, iv -a

Which one of the following plant hormones does NOT prevent abscission in plants?

• (A)

  Auxin

• (B)

  Gibberellin

• (C)

  Cytokinin

• (D)

  Ethylene

Match the Column I with Column II.

• (A)

  i-b, ii-a, iii-c, iv-d

• (B)

  i - b, ii - a, iii - d, iv - c

• (C)

  \(\mathrm{i}-\mathrm{b},\mathrm{ii}-\mathrm{c},\mathrm{iii}-\mathrm{d},\mathrm{iv}-\mathrm{a}\)

• (D)

  i - b, ii - d, iii - c, iv -a

Identify P and Q regions in the diagram of histology of alimentary canal and identify the type of tissue.

• (A)

  \(\mathrm{P}\) - Submucosa - loose connective tissue Q - Circular muscle layer - Smooth muscles

• (B)

  P -Mucosa-Mesothelium

  Q - Muscularis - Straited muscles

• (C)

  P-Serosa- Squamous epithelium

  Q - Muscularis - Smooth muscles

• (D)

  P -Mucosa-epithelium with microvilli

  Q - Longitudinal muscle layer - Striated muscles

Which one of the following is NOT a cyanobacterial biofertilizer?

• (A)

  Anabaena

• (B)

  Nostoc

• (C)

  Oscillatoria

• (D)

  Rhizobium