NEET PYP 2018

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Solution

An em wave is propagating in a medium with a velocity

ˆi. The instantaneous oscillating electric field of this em wave is along +y axis. Then the direction of oscillating magnetic field of the em wave will be along

An em wave is propagating in a medium with a velocity

ˆi. The instantaneous oscillating electric field of this em wave is along +y axis. Then the direction of oscillating magnetic field of the em wave will be along

The refractive index of the material of a prism is

and the angle of the prism is 30 °. One of the two refracting surfaces of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) the angle of incidence on the prism is:-

The refractive index of the material of a prism is

and the angle of the prism is 30 °. One of the two refracting surfaces of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) the angle of incidence on the prism is:-

The magnetic potential energy stored in a certain inductor is 25 mJ, when the current in the inductor is 60 mA. This inductor is of inductance :-

The magnetic potential energy stored in a certain inductor is 25 mJ, when the current in the inductor is 60 mA. This inductor is of inductance :-

An object is placed at a distance of 40 cm from a concave mirror of focal length 15 cm. If the object is displaced through a distance of 20 cm towards the mirror, the displacement of the image will be:-

An object is placed at a distance of 40 cm from a concave mirror of focal length 15 cm. If the object is displaced through a distance of 20 cm towards the mirror, the displacement of the image will be:-

In the combination of the following gates the output Y can be written in terms of inputs A and B as :-

In the combination of the following gates the output Y can be written in terms of inputs A and B as :-

In the circuit shown in the figure, the input voltage V_i is 20 V, V_BE = 0 and V_CE = 0. The values of I_B, I_C and

are given by :-

In the circuit shown in the figure, the input voltage V_i is 20 V, V_BE = 0 and V_CE = 0. The values of I_B, I_C and

are given by :-

In a p-n junction diode, change in temperature due to heating :-

In a p-n junction diode, change in temperature due to heating :-

A small sphere of radius 'r' falls from rest in a viscous liquid. As a result, heat is produced due to viscous force. The rate of production of heat when the sphere attains its terminal velocity, is proportional to :-

A small sphere of radius 'r' falls from rest in a viscous liquid. As a result, heat is produced due to viscous force. The rate of production of heat when the sphere attains its terminal velocity, is proportional to :-

A sample of 0.1 g of water at 100^oC and normal pressure (1.013 × 10⁵ Nm^–2) requires 54 cal of heat energy to convert it into steam at 100

C. If the volume of the steam produced is 167.1 cc, the change in internal energy of the sample is:-

A sample of 0.1 g of water at 100^oC and normal pressure (1.013 × 10⁵ Nm^–2) requires 54 cal of heat energy to convert it into steam at 100

C. If the volume of the steam produced is 167.1 cc, the change in internal energy of the sample is:-

Q.10 In-correct

Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and the second wire has cross-sectional area 3A. If the length of the first wire is increased by

on applying a force F, how much force is needed to stretch the second wire by the same amount ?

Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and the second wire has cross-sectional area 3A. If the length of the first wire is increased by

on applying a force F, how much force is needed to stretch the second wire by the same amount ?

Q.11 In-correct

The power radiated by a black body is P and it radiates maximum energy at wavelength

. If the temperature of the black body is now changed so that it radiates maximum energy at wavelength

, the power radiated by it becomes nP. The value of n is :-

The power radiated by a black body is P and it radiates maximum energy at wavelength

. If the temperature of the black body is now changed so that it radiates maximum energy at wavelength

, the power radiated by it becomes nP. The value of n is :-

Q.12 In-correct

A set of 'n' equal resistors, of value 'R' each, are connected in series to a battery of emf 'E' and internal resistance 'R'. The current drawn is I. Now, the 'n' resistors are connected in parallel to the same battery. Then the current drawn becomes 10 I. The value of 'n' is :-

A set of 'n' equal resistors, of value 'R' each, are connected in series to a battery of emf 'E' and internal resistance 'R'. The current drawn is I. Now, the 'n' resistors are connected in parallel to the same battery. Then the current drawn becomes 10 I. The value of 'n' is :-

Q.13 In-correct

A battery consists of a variable number 'n' of identical cells (having internal resistance 'r' each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n?

A battery consists of a variable number 'n' of identical cells (having internal resistance 'r' each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n?

Q.14 In-correct

A carbon resistor (47 ± 4.7) kΩ is to be marked with rings of different colours for its identification. The colour code sequence will be :-

A carbon resistor (47 ± 4.7) kΩ is to be marked with rings of different colours for its identification. The colour code sequence will be :-

Q.15 In-correct

Which one of the following statements is incorrect ?

Which one of the following statements is incorrect ?

Q.16 In-correct

A moving block having mass m, collides with another stationary block having mass 4m. The lighter block comes to rest after collision. When the initial velocity of the lighter block is v, then the value of coefficient of resistitution (e) will be :-

A moving block having mass m, collides with another stationary block having mass 4m. The lighter block comes to rest after collision. When the initial velocity of the lighter block is v, then the value of coefficient of resistitution (e) will be :-

Q.17 In-correct

A body initially at rest and sliding along a frictionless track from a height h (as shown in the figure) just completes a vertical circle of diameter AB = D. The height h is equal to :-

A body initially at rest and sliding along a frictionless track from a height h (as shown in the figure) just completes a vertical circle of diameter AB = D. The height h is equal to :-

Q.18 In-correct

Three objects, A : (a solid sphere), B : (a thin circular disk) and C = (a circular ring), each have the same mass M and radius R. They all spin with the same angular speed about their own symmetry axes. The amounts of work (W) required to bring them to rest, would satisfy the relation :-

Three objects, A : (a solid sphere), B : (a thin circular disk) and C = (a circular ring), each have the same mass M and radius R. They all spin with the same angular speed about their own symmetry axes. The amounts of work (W) required to bring them to rest, would satisfy the relation :-

Q.19 In-correct

A tuning fork is used to produce resonance in a glass tube. The length of the air column in this tube can be adjusted by a variable piston. At room temperature of 27°C two successive resonances are produced at 20 cm and 73 cm column length. If the frequency of the tuning fork is 320 Hz, the velocity of sound in air at 27°C is :-

A tuning fork is used to produce resonance in a glass tube. The length of the air column in this tube can be adjusted by a variable piston. At room temperature of 27°C two successive resonances are produced at 20 cm and 73 cm column length. If the frequency of the tuning fork is 320 Hz, the velocity of sound in air at 27°C is :-

Q.20 In-correct

An electron falls from rest through a vertical distance h in a uniform and vertically upward directed electric field E. The direction of electric field is now reversed, keeping its magnitude the same. A proton is allowed to fall from rest in through the same vertical distance h. The time fall of the electron, in comparison to the time fall of the proton is :-

An electron falls from rest through a vertical distance h in a uniform and vertically upward directed electric field E. The direction of electric field is now reversed, keeping its magnitude the same. A proton is allowed to fall from rest in through the same vertical distance h. The time fall of the electron, in comparison to the time fall of the proton is :-

Q.21 In-correct

A pendulum is hung from the roof of a sufficiently high building and is moving freely to and fro like a simple harmonic oscillator. The acceleration of the bob of the pendulum is 20 m/s² at a distance of 5 m from the mean position. The time period of oscillation is :-

A pendulum is hung from the roof of a sufficiently high building and is moving freely to and fro like a simple harmonic oscillator. The acceleration of the bob of the pendulum is 20 m/s² at a distance of 5 m from the mean position. The time period of oscillation is :-

Q.22 In-correct

The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is

The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is

Q.23 In-correct

An electron of mass m with an initial velocity

enters in an electric field

(E_o = constant >0) at t = 0. If

is its de-Broglie wavelength initially, then its de-Broglie wavelength at time t is:-

An electron of mass m with an initial velocity

enters in an electric field

(E_o = constant >0) at t = 0. If

is its de-Broglie wavelength initially, then its de-Broglie wavelength at time t is:-

Q.24 In-correct

For a radioactive material, half-life is 10 minutes. If initially there are 600 number of nuclei, the time taken (in minutes) for the disintegration of 450 nuclei is :-

For a radioactive material, half-life is 10 minutes. If initially there are 600 number of nuclei, the time taken (in minutes) for the disintegration of 450 nuclei is :-

Q.25 In-correct

When the light of frequency 2v_o (where v_o is threshold frequency), is incident on a metal plate, the maximum velocity of electrons emitted is v₁. When the frequency of the incident radiation is increased to 5v_o, the maximum velocity of electrons emitted from the same plate is v₂. The ratio of v₁ to v₂ is

When the light of frequency 2v_o (where v_o is threshold frequency), is incident on a metal plate, the maximum velocity of electrons emitted is v₁. When the frequency of the incident radiation is increased to 5v_o, the maximum velocity of electrons emitted from the same plate is v₂. The ratio of v₁ to v₂ is

Q.26 In-correct

The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom is:

The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom is:

Q.27 In-correct

The moment of the force,

at (2,0,-3) about the point (2,-2,-2) is given by:-

The moment of the force,

at (2,0,-3) about the point (2,-2,-2) is given by:-

Q.28 In-correct

A block of mass m is placed on a smooth inclined wedge ABC of inclination θ as shown in the figure. The wedge is given an acceleration 'a' towards the right. The relation between a and

for the block to remain stationary on the wedge is :-

A block of mass m is placed on a smooth inclined wedge ABC of inclination θ as shown in the figure. The wedge is given an acceleration 'a' towards the right. The relation between a and

for the block to remain stationary on the wedge is :-

Q.29 In-correct

A toy car with charge q moves on a frictionless horizontal plane surface under the influence of a uniform electric field

. Due to the force q

, its velocity increases from 0 to 6 m/s in one-second duration. At that instant, the direction of the field is reversed. The car continues to move for two more seconds under the influence of this field. The average velocity and the average speed of the toy car between 0 to 3 seconds are respectively:-

A toy car with charge q moves on a frictionless horizontal plane surface under the influence of a uniform electric field

. Due to the force q

, its velocity increases from 0 to 6 m/s in one-second duration. At that instant, the direction of the field is reversed. The car continues to move for two more seconds under the influence of this field. The average velocity and the average speed of the toy car between 0 to 3 seconds are respectively:-

Q.30 In-correct

A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm. The main scale reading is 5 mm and zero of circular scale division coincides with 25 divisions above the reference level. If screw gauge has a zero error of – 0.004 cm, the correct diameter of the ball is :-

A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm. The main scale reading is 5 mm and zero of circular scale division coincides with 25 divisions above the reference level. If screw gauge has a zero error of – 0.004 cm, the correct diameter of the ball is :-

Q.31 In-correct

Unpolarised light is incident from air on a plane surface of a material of refractive index 'μ'. At a particular angle of incidence 'i', it is found that the reflected and refracted rays are perpendicular to each other. Which of the following options is correct for this situation ?

Unpolarised light is incident from air on a plane surface of a material of refractive index 'μ'. At a particular angle of incidence 'i', it is found that the reflected and refracted rays are perpendicular to each other. Which of the following options is correct for this situation ?

Q.32 In-correct

In Young's double slit experiment the separation d between the slits is 2 mm, the wavelength

of the light used is 5896 Å and distance D between the screen and slits is 100 cm. It is found that the angular width of the fringes is 0.20°. To increase the fringe angular width to 0.21° (with same

and D) the separation between the slits needs to be changed to:-

In Young's double slit experiment the separation d between the slits is 2 mm, the wavelength

of the light used is 5896 Å and distance D between the screen and slits is 100 cm. It is found that the angular width of the fringes is 0.20°. To increase the fringe angular width to 0.21° (with same

and D) the separation between the slits needs to be changed to:-

Q.33 In-correct

An astronomical refracting telescope will have large angular magnification and high angular resolution, when it has an objective lens of :-

An astronomical refracting telescope will have large angular magnification and high angular resolution, when it has an objective lens of :-

Q.34 In-correct

The volume (V) of a monatomic gas varies with its temperature (T), as shown in the graph. The ratio of work done by the gas, to the heat absorbed by it, when it undergoes a change from state A to state B, is :-

The volume (V) of a monatomic gas varies with its temperature (T), as shown in the graph. The ratio of work done by the gas, to the heat absorbed by it, when it undergoes a change from state A to state B, is :-

Q.35 In-correct

The fundamental frequency in an open organ pipe is equal to the third harmonic of a closed organ pipe. If the length of the closed organ pipe is 20 cm, the length of the open organ pipe is :-

The fundamental frequency in an open organ pipe is equal to the third harmonic of a closed organ pipe. If the length of the closed organ pipe is 20 cm, the length of the open organ pipe is :-

Q.36 In-correct

The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is :-

The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is :-

Q.37 In-correct

At what temperature will the rms speed of oxygen molecules become just sufficient for escaping from the Earth's atmosphere?
(Given : Mass of oxygen molecule (m) = 2.76 x 10^-26kg Boltzmann's constant k_B = 1.38 × 10^-23 J K^-1) :-

At what temperature will the rms speed of oxygen molecules become just sufficient for escaping from the Earth's atmosphere?
(Given : Mass of oxygen molecule (m) = 2.76 x 10^-26kg Boltzmann's constant k_B = 1.38 × 10^-23 J K^-1) :-

Q.38 In-correct

A metallic rod of mass per unit length 0.5 kg m^-1 is lying horizontally on a smooth inclined plane which makes an angle of 30° with the horizontal. The rod is not allowed to slide down by flowing a current through it when a magnetic field of induction 0.25 T is acting on it in the vertical direction. The current flowing in the rod to keep stationary is

A metallic rod of mass per unit length 0.5 kg m^-1 is lying horizontally on a smooth inclined plane which makes an angle of 30° with the horizontal. The rod is not allowed to slide down by flowing a current through it when a magnetic field of induction 0.25 T is acting on it in the vertical direction. The current flowing in the rod to keep stationary is

Q.39 In-correct

An inductor 20 mH, a capacitor 100 μF and a resistor 50

are connected in series across a source of emf, V = 10 sin 314 t. The power loss in the circuit is

An inductor 20 mH, a capacitor 100 μF and a resistor 50

are connected in series across a source of emf, V = 10 sin 314 t. The power loss in the circuit is

Q.40 In-correct

A thin diamagnetic rod is placed vertically between the poles of an electromagnet. When the current in the electromagnet is switched on, then the diamagnetic rod is pushed up, out of the horizontal magnetic field. Hence the rod gains gravitational potential energy. The work required to do this comes from

A thin diamagnetic rod is placed vertically between the poles of an electromagnet. When the current in the electromagnet is switched on, then the diamagnetic rod is pushed up, out of the horizontal magnetic field. Hence the rod gains gravitational potential energy. The work required to do this comes from

Q.41 In-correct

Current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is 20 div/V. The resistance of the galvanometer is

Current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is 20 div/V. The resistance of the galvanometer is

Q.42 In-correct

If the mass of the Sun were ten times smaller and the universal gravitational constant were ten time larger in magnitude, which of the following is not correct ?

If the mass of the Sun were ten times smaller and the universal gravitational constant were ten time larger in magnitude, which of the following is not correct ?

Q.43 In-correct

A solid sphere is in rolling motion. In rolling motion a body possesses translational kinetic energy (K_t) as well as rotational kinetic energy (K_r) simultaneously. The ratio Kt : (K_t + K_r) for the sphere is

A solid sphere is in rolling motion. In rolling motion a body possesses translational kinetic energy (K_t) as well as rotational kinetic energy (K_r) simultaneously. The ratio Kt : (K_t + K_r) for the sphere is

Q.44 In-correct

The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are K_A, K_B and K_C respectively. AC is the major axis and SB is perpendicular to AC at the position of the Sun S as shown in the figure. Then

The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are K_A, K_B and K_C respectively. AC is the major axis and SB is perpendicular to AC at the position of the Sun S as shown in the figure. Then

Q.45 In-correct

A solid sphere is rotating freely about its symmetry axis in free space. The radius of the sphere is increased keeping its mass same. Which of the following physical quantities would remain constant for the sphere ?

A solid sphere is rotating freely about its symmetry axis in free space. The radius of the sphere is increased keeping its mass same. Which of the following physical quantities would remain constant for the sphere ?

A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc.

The evolved gaseous mixture is passed through KOH pellets. Weight (in g) of the remaining product at STP will be

A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc.

The evolved gaseous mixture is passed through KOH pellets. Weight (in g) of the remaining product at STP will be

Nitration of aniline in strong acidic medium also gives m-nitroaniline because

Nitration of aniline in strong acidic medium also gives m-nitroaniline because

Which of the following oxides is most acidic in nature?

Which of the following oxides is most acidic in nature?

The difference between amylose and amylopectin is

The difference between amylose and amylopectin is

Regarding cross-linked or network polymers, which of the following statements is incorrect?

Regarding cross-linked or network polymers, which of the following statements is incorrect?

In the reaction

the electrophile involved is

In the reaction

the electrophile involved is

Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their

Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their

is found to react with NaOI (produced by reacting Y with NaOH) and yields a yellow precipitate with characteristic smell.
A and Y are respectively

is found to react with NaOI (produced by reacting Y with NaOH) and yields a yellow precipitate with characteristic smell.
A and Y are respectively

The correct difference between first- and second-order reaction is that

The correct difference between first- and second-order reaction is that

Q.10 In-correct

the order of ionic character is

the order of ionic character is

Q.11 In-correct

Consider the change in oxidation state of Bromine corresponding to different emf values as shown in the diagram below:

Then the species undergoing disproportionation is:-

Consider the change in oxidation state of Bromine corresponding to different emf values as shown in the diagram below:

Then the species undergoing disproportionation is:-

Q.12 In-correct

In which case is the number of molecules of water maximum?

In which case is the number of molecules of water maximum?

Q.13 In-correct

Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is

the simplest formula for this compound is

Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is

the simplest formula for this compound is

Q.14 In-correct

Iron exhibits bcc structure at room temperature. Above 900 °C, it transforms to fcc structure. The ratio of density of iron at room temperature to that at 900 °C (assuming molar mass and atomic radii of iron remains constant with temperature) is

Iron exhibits bcc structure at room temperature. Above 900 °C, it transforms to fcc structure. The ratio of density of iron at room temperature to that at 900 °C (assuming molar mass and atomic radii of iron remains constant with temperature) is

Q.15 In-correct

Which one is a wrong statement?

Which one is a wrong statement?

Q.16 In-correct

Consider the following species:

and CN
Which one of these will have the highest bond order?

Consider the following species:

and CN
Which one of these will have the highest bond order?

Q.17 In-correct

Which of the following statements is not true for halogens?

Which of the following statements is not true for halogens?

Q.18 In-correct

Which one of the following elements is unable to form

Which one of the following elements is unable to form

Q.19 In-correct

In the structure of ClF₃, the number of lone pairs of electrons on central atom 'Cl' is

In the structure of ClF₃, the number of lone pairs of electrons on central atom 'Cl' is

Q.20 In-correct

Considering Ellingham diagram, which of the following metals can be used to reduce alumina?

Considering Ellingham diagram, which of the following metals can be used to reduce alumina?

Q.21 In-correct

The correct order of atomic radii in group 13 elements is

The correct order of atomic radii in group 13 elements is

Q.22 In-correct

The correct order of N-compounds in its decreasing order of oxidation states is

The correct order of N-compounds in its decreasing order of oxidation states is

Q.23 In-correct

On which of the following properties does coagulating power of an ion depend?

On which of the following properties does coagulating power of an ion depend?

Q.24 In-correct

Following solutions were prepared by mixing different volumes of NaOH and HCl of different concentrations :
1)

pH of which one of them will be equal to 1?

Following solutions were prepared by mixing different volumes of NaOH and HCl of different concentrations :
1)

pH of which one of them will be equal to 1?

Q.25 In-correct

The solubility of BaSO4 in water 2.42*10^-3gL^-1 at 298 K. The value of solubility product (Ksp) will be
(Given molar mass of BaSO₄ = 233 gmol_–1)

The solubility of BaSO4 in water 2.42*10^-3gL^-1 at 298 K. The value of solubility product (Ksp) will be
(Given molar mass of BaSO₄ = 233 gmol_–1)

Q.26 In-correct

Given van der Waals constant for NH₃, H₂ and CO₂ are respectively 4.17, 0.244, 1.36 and 3.59, which one of the following gases is most easily liquefied?

Given van der Waals constant for NH₃, H₂ and CO₂ are respectively 4.17, 0.244, 1.36 and 3.59, which one of the following gases is most easily liquefied?

Q.27 In-correct

The compound A on treatment with Na gives B, and with PCl₅ gives C. B and C react together to give diethyl ether. A, B and C are in the order

The compound A on treatment with Na gives B, and with PCl₅ gives C. B and C react together to give diethyl ether. A, B and C are in the order

Q.28 In-correct

Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms. (A) is

Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms. (A) is

Q.29 In-correct

undergoes the following reactions :

The product 'C' is

undergoes the following reactions :

The product 'C' is

Q.30 In-correct

Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?

Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?

Q.31 In-correct

For the redox reaction

the correct coefficients of the reactants for the balanced equation are

For the redox reaction

the correct coefficients of the reactants for the balanced equation are

Q.32 In-correct

Which one of the following conditions will favour maximum formation of the product in the reaction,

Which one of the following conditions will favour maximum formation of the product in the reaction,

Q.33 In-correct

The correction factor 'a' to the ideal gas equation corresponds to

The correction factor 'a' to the ideal gas equation corresponds to

Q.34 In-correct

When initial concentration of the reactant is doubled, the half-life period of a zero order reaction

When initial concentration of the reactant is doubled, the half-life period of a zero order reaction

Q.35 In-correct

The bond dissociation energies of

and XY are in the ratio of 1 : 0.5 : 1. ∆H for the formation of XY is –200 kJ mol^–1. The bond dissociation energy of X₂ will be

The bond dissociation energies of

and XY are in the ratio of 1 : 0.5 : 1. ∆H for the formation of XY is –200 kJ mol^–1. The bond dissociation energy of X₂ will be

Q.36 In-correct

Identify the major products P, Q and R in the following sequence of reaction :

Identify the major products P, Q and R in the following sequence of reaction :

Q.37 In-correct

Which of the following compounds can form a zwitterion?

Which of the following compounds can form a zwitterion?

Q.38 In-correct

The type of isomerism shown by the complex

The type of isomerism shown by the complex

Q.39 In-correct

Which one of the following ions exhibits d–d transition and paramagnetism as well?

Which one of the following ions exhibits d–d transition and paramagnetism as well?

Q.40 In-correct

The geometry and magnetic behaviour of the complex [Ni(CO)₄] are

The geometry and magnetic behaviour of the complex [Ni(CO)₄] are

Q.41 In-correct

Q.42 In-correct

Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :
Column I
a.

Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :
Column I
a.

Q.43 In-correct

Which of the following is correct with respect to –I effect of the substituents ?
(R = alkyl)

Which of the following is correct with respect to –I effect of the substituents ?
(R = alkyl)

Q.44 In-correct

Which of the following carbocations is expected to be most stable?

Which of the following carbocations is expected to be most stable?

Q.45 In-correct

Which of the following molecules represents the order of hybridisation

from left to right atoms?

Which of the following molecules represents the order of hybridisation

from left to right atoms?

The experimental proof for semiconservative replication of DNA was first shown in a-

The experimental proof for semiconservative replication of DNA was first shown in a-

Select the correct statement:

Select the correct statement:

Offsets are produced by

Offsets are produced by

Which of the following pairs in wrongly matched?

Which of the following pairs in wrongly matched?

Which of the following flowers only once in its life-time?

Which of the following flowers only once in its life-time?

Select the correct match:

Select the correct match:

Which of the following has proved helpful in preserving pollen as fossils?

Which of the following has proved helpful in preserving pollen as fossils?

Stomatal movement is not affected by

Stomatal movement is not affected by

The stage during which separation of the paired homologous chromosomes begins is

The stage during which separation of the paired homologous chromosomes begins is

Q.10 In-correct

The two functional groups characteristic of sugars are

The two functional groups characteristic of sugars are

Q.11 In-correct

Which of the following is not a product of light reaction of photosynthesis?

Which of the following is not a product of light reaction of photosynthesis?

Q.12 In-correct

Stomata in grass leaf are

Stomata in grass leaf are

Q.13 In-correct

Which among the following is not a prokaryote?

Which among the following is not a prokaryote?

Q.14 In-correct

Which of the following is true for nucleolus?

Which of the following is true for nucleolus?

Q.15 In-correct

The Golgi complex participates in

The Golgi complex participates in

Q.16 In-correct

In stratosphere, which of the following element acts as a catalyst in degradation of ozone a release of molecular oxygen?

In stratosphere, which of the following element acts as a catalyst in degradation of ozone a release of molecular oxygen?

Q.17 In-correct

Which of the following is a secondary pollutant?

Which of the following is a secondary pollutant?

Q.18 In-correct

Q.19 In-correct

Natality refers to

Natality refers to

Q.20 In-correct

What type of ecological pyramid would obtained with the following data?
Secondary consumer: 120 g
Primary consumer: 60 g
Primary producer: 10 g

What type of ecological pyramid would obtained with the following data?
Secondary consumer: 120 g
Primary consumer: 60 g
Primary producer: 10 g

Q.21 In-correct

World Ozone Day is celebrated on

World Ozone Day is celebrated on

Q.22 In-correct

Which of the following is commonly used as a vector for introducing a DNA fragment in human Lymphocytes?

Which of the following is commonly used as a vector for introducing a DNA fragment in human Lymphocytes?

Q.23 In-correct

In India, the organization responsible for assessing the safety of introducing genetically modified Organisms for public use is

In India, the organization responsible for assessing the safety of introducing genetically modified Organisms for public use is

Q.24 In-correct

A 'new variety of rice was patented by a foreign company though such varieties have been present in India for a long time. This is related to

A 'new variety of rice was patented by a foreign company though such varieties have been present in India for a long time. This is related to

Q.25 In-correct

Select the correct Match:

Select the correct Match:

Q.26 In-correct

Use of bioresources by multinational companies and organizations without authorization from the
Concerned country and its people is called

Use of bioresources by multinational companies and organizations without authorization from the
Concerned country and its people is called

Q.27 In-correct

The correct order of steps in Polymerase Chain Reaction (PCR) is

The correct order of steps in Polymerase Chain Reaction (PCR) is

Q.28 In-correct

Secondary xylem and phloem in dicot stem are produced by

Secondary xylem and phloem in dicot stem are produced by

Q.29 In-correct

Pneumatophores occur in

Pneumatophores occur in

Q.30 In-correct

Sweet potato is a modified

Sweet potato is a modified

Q.31 In-correct

Which of the following statement is correct?

Which of the following statement is correct?

Q.32 In-correct

Select the wrong statement:

Select the wrong statement:

Q.33 In-correct

Casparian strips occur in

Casparian strips occur in

Q.34 In-correct

Plants having little or no secondary growth are

Plants having little or no secondary growth are

Q.35 In-correct

Which one is wrongly matched?

Which one is wrongly matched?

Q.36 In-correct

Match the items given in Column I with those in Column II and select the correct option given below-
Column-I
(a) Herbarium
(b) Key
(c) Museum
(d) Catalogue
Column-II
i. It is a place having a collection of preserved plants and animals.
ii. A list that enumerates methodically all the species found in an area with brief description aiding identification.
iii.Is a place where dried and pressed plant specimens mounted on sheets is kept.
iv. A booklet containing a list of characters and their alternates which are helpful in identification of various taxa.

Match the items given in Column I with those in Column II and select the correct option given below-
Column-I
(a) Herbarium
(b) Key
(c) Museum
(d) Catalogue
Column-II
i. It is a place having a collection of preserved plants and animals.
ii. A list that enumerates methodically all the species found in an area with brief description aiding identification.
iii.Is a place where dried and pressed plant specimens mounted on sheets is kept.
iv. A booklet containing a list of characters and their alternates which are helpful in identification of various taxa.

Q.37 In-correct

Winged pollen grains are present in

Winged pollen grains are present in

Q.38 In-correct

After karyogamy followed by meiosis, spores are produced exogenously in

After karyogamy followed by meiosis, spores are produced exogenously in

Q.39 In-correct

What is the role of NAD⁺ in cellular respiration?

What is the role of NAD⁺ in cellular respiration?

Q.40 In-correct

Oxygen is not produced during photosynthesis by

Oxygen is not produced during photosynthesis by

Q.41 In-correct

Pollen grains can be stored for several years in liquid nitrogen having a temperature of

Pollen grains can be stored for several years in liquid nitrogen having a temperature of

Q.42 In-correct

In which of the following forms is iron absorbed by plants?

In which of the following forms is iron absorbed by plants?

Q.43 In-correct

Double fertilization is

Double fertilization is

Q.44 In-correct

Which of the following elements is responsible for maintaining turgor in cells ?

Which of the following elements is responsible for maintaining turgor in cells ?

Q.45 In-correct

Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?

Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?

Q.46 In-correct

Hormones secreted by the placenta to maintain pregnancy are

Hormones secreted by the placenta to maintain pregnancy are

Q.47 In-correct

The contraceptive 'SAHELI'

The contraceptive 'SAHELI'

Q.48 In-correct

The difference between spermiogenesis and spermiation is

The difference between spermiogenesis and spermiation is

Q.49 In-correct

The amnion of mammalian embryo is derived from

The amnion of mammalian embryo is derived from

Q.50 In-correct

In a growing population of a country

In a growing population of a country

Q.51 In-correct

All of the following are included in 'Ex-situconservation' except

All of the following are included in 'Ex-situconservation' except

Q.52 In-correct

Which part of poppy plant is used to obtain the drug Smack?

Which part of poppy plant is used to obtain the drug Smack?

Q.53 In-correct

Match the items given in Column I with those inColumn II and select the correct option givenbelow:
Column I
a. Eutrophication
b. Sanitary landfill
c. Snow blindness
d. Jhum cultivation
Column II
i. UV-B radiation
ii. Deforestation
iii. Nutrient enrichment
iv. Waste disposal

Match the items given in Column I with those inColumn II and select the correct option givenbelow:
Column I
a. Eutrophication
b. Sanitary landfill
c. Snow blindness
d. Jhum cultivation
Column II
i. UV-B radiation
ii. Deforestation
iii. Nutrient enrichment
iv. Waste disposal

Q.54 In-correct

Which one of the following population interactions is widely used in medical science for the production of antibiotics ?

Which one of the following population interactions is widely used in medical science for the production of antibiotics ?

Q.55 In-correct

Which of the following events does not occur in rough endoplasmic reticulum ?

Which of the following events does not occur in rough endoplasmic reticulum ?

Q.56 In-correct

Which of these statements is incorrect?

Which of these statements is incorrect?

Q.57 In-correct

Many ribosomes may associate with a single mRNA to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as

Many ribosomes may associate with a single mRNA to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as

Q.58 In-correct

Select the incorrect match:

Select the incorrect match:

Q.59 In-correct

Nissl bodies are mainly composed of

Nissl bodies are mainly composed of

Q.60 In-correct

Which of the following terms describe human dentition?

Which of the following terms describe human dentition?

Q.61 In-correct

Match the items given in Column I with those in Column II and select the correct option given below:
Column I
a. Glycosuria
b. Gout
c. Renal calculi
d. Glomerulonephritis
Column II
i. Accumulation of uric acid in joints
ii. Mass of crystallized salts within the kidney
iii. Inflammation in glomeruli
iv. Presence of glucose in nephritis urine

Match the items given in Column I with those in Column II and select the correct option given below:
Column I
a. Glycosuria
b. Gout
c. Renal calculi
d. Glomerulonephritis
Column II
i. Accumulation of uric acid in joints
ii. Mass of crystallized salts within the kidney
iii. Inflammation in glomeruli
iv. Presence of glucose in nephritis urine

Q.62 In-correct

Match the items given in Column I with those Column II and select the correct option given below:
Column I
(Function)
a. Ultrafiltration
b. Concentration of urine
c. Transport of urine
d. Storage of urine
Column II
(Part of Excretory System)
i. Henle's loop
ii. Ureter
iii. Urinary bladder
iv. Malpighian corpuscle
v. Proximal convoluted tubule

Match the items given in Column I with those Column II and select the correct option given below:
Column I
(Function)
a. Ultrafiltration
b. Concentration of urine
c. Transport of urine
d. Storage of urine
Column II
(Part of Excretory System)
i. Henle's loop
ii. Ureter
iii. Urinary bladder
iv. Malpighian corpuscle
v. Proximal convoluted tubule

Q.63 In-correct

The similarity of bone structure in the forelimbs of many vertebrates is an example of

The similarity of bone structure in the forelimbs of many vertebrates is an example of

Q.64 In-correct

Which of the following is not an autoimmune disease?

Which of the following is not an autoimmune disease?

Q.65 In-correct

Among the following sets of examples for divergent evolution, select the incorrect option:

Among the following sets of examples for divergent evolution, select the incorrect option:

Q.66 In-correct

Which of the following characteristics represent 'Inheritance of blood groups' in humans?
a. Dominance
b. Co-dominance
c. Multiple dominance
d. Incomplete dominance
e. Polygenic inheritance

Which of the following characteristics represent 'Inheritance of blood groups' in humans?
a. Dominance
b. Co-dominance
c. Multiple dominance
d. Incomplete dominance
e. Polygenic inheritance

Q.67 In-correct

In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels?

In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels?

Q.68 In-correct

Conversion of milk to curd improves its nutritional value by increasing the amount of

Conversion of milk to curd improves its nutritional value by increasing the amount of

Q.69 In-correct

Which of the following is an amino acid derived hormone?

Which of the following is an amino acid derived hormone?

Q.70 In-correct

Which of the following structures or regions is in correctly paired with its function ?

Which of the following structures or regions is in correctly paired with its function ?

Q.71 In-correct

Which of the following hormones can play a significant role in osteoporesis?

Which of the following hormones can play a significant role in osteoporesis?

Q.72 In-correct

The transparent lens in the human eye is held in its place by

The transparent lens in the human eye is held in its place by

Q.73 In-correct

Which of the following animals does not undergo metamorphosis?

Which of the following animals does not undergo metamorphosis?

Q.74 In-correct

Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system.

Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system.

Q.75 In-correct

Which of the following organisms are known as chief producers in the oceans ?

Which of the following organisms are known as chief producers in the oceans ?

Q.76 In-correct

Which one of these animals is not a homeotherm?

Which one of these animals is not a homeotherm?

Q.77 In-correct

Ciliates differ from all other protozoans in

Ciliates differ from all other protozoans in

Q.78 In-correct

Which of the following features is used to identify a male cockroach from a female cockroach?

Which of the following features is used to identify a male cockroach from a female cockroach?

Q.79 In-correct

Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively?

Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively?

Q.80 In-correct

Match the items given in Column I with those inColumn II and select the correct option givenbelow:
Column I
a. Tricuspid valve
b. Bicuspid valve
c. Semilunar valve
Column II
i. Between left atrium and left ventricle
ii. Between right ventricle and pulmonary artery
iii. Between right atrium and right ventricle

Match the items given in Column I with those inColumn II and select the correct option givenbelow:
Column I
a. Tricuspid valve
b. Bicuspid valve
c. Semilunar valve
Column II
i. Between left atrium and left ventricle
ii. Between right ventricle and pulmonary artery
iii. Between right atrium and right ventricle

Q.81 In-correct

Match the items given Column I with those in Column II and select the correct option given below:
Column I
a. Tidal volume
b. Inspiratory Reserve
c. Expiratory Reserve
d. Residual volume
Column II
i. 2500-3000 mL
ii. 1100-1200 mL volume
iii. 500-550 mL volume
iv. 1000-1100 mL

Match the items given Column I with those in Column II and select the correct option given below:
Column I
a. Tidal volume
b. Inspiratory Reserve
c. Expiratory Reserve
d. Residual volume
Column II
i. 2500-3000 mL
ii. 1100-1200 mL volume
iii. 500-550 mL volume
iv. 1000-1100 mL

Q.82 In-correct

AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?

AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?

Q.83 In-correct

According to Hugo de Vries, the mechanism of evolution is:-

According to Hugo de Vries, the mechanism of evolution is:-

Q.84 In-correct

Match the items given in Column I with those in Column II and select the correct option given below:-
Column I
a. Proliferative Phase
b. Secretory Phase
c. Menstruation
Column II
i. Breakdown of endometrial lining
ii. Follicular Phase
iii. Luteal Phase

Match the items given in Column I with those in Column II and select the correct option given below:-
Column I
a. Proliferative Phase
b. Secretory Phase
c. Menstruation
Column II
i. Breakdown of endometrial lining
ii. Follicular Phase
iii. Luteal Phase

Q.85 In-correct

A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by:-

A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by:-

Q.86 In-correct

All of the following are part of an operon except:-

All of the following are part of an operon except:-

Q.87 In-correct

Which of the following gastric cells indirectly help in erythropoiesis?

Which of the following gastric cells indirectly help in erythropoiesis?

Q.88 In-correct

Match the items given in Column I with those in column II and select the correct option given below:-
Column I
a. Fibrinogen
b. Globulin
c. Albumin
Column II
i. Osmotic balance
ii. Blood clotting
iii. Defence mechanism

Match the items given in Column I with those in column II and select the correct option given below:-
Column I
a. Fibrinogen
b. Globulin
c. Albumin
Column II
i. Osmotic balance
ii. Blood clotting
iii. Defence mechanism

Q.89 In-correct

Calcium is important in skeletal muscle contraction because it:-

Calcium is important in skeletal muscle contraction because it:-

Q.90 In-correct

Which of the following is an occupational respiratory disorder?”

Which of the following is an occupational respiratory disorder?”

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