datavorous/entrance-exam-dataset huggingface dataset:
What happens to the paramagnetic nature of alkali metal solutions in liquid ammonia when they stand for some time?

Options:
A It remains paramagnetic.
B It becomes diamagnetic.
C It becomes non-magnetic.
D It becomes ferromagnetic.

The correct answer is:
It becomes diamagnetic.

Solution:
Paramagnetic alkali metal solutions in liquid ammonia become diamagnetic when they stand for some time.

Topic: Chemistry, s Block Elements, NEET
What happens to the parent cell during yeast division?

Options:
A It divides into two halves
B It divides into many minute amoeba
C It grows into many new yeast organisms
D It remains attached initially to the produced buds

The correct answer is:
It remains attached initially to the produced buds

Solution:
In yeast division, small buds are produced that remain attached initially to the parent cell, which eventually gets separated and mature into new yeast organisms.

Topic: Biology, Reproduction in Organisms, NEET
What happens to the parental nucleus after the dikaryotic stage?

Options:
A They remain separate
B They fuse
C They form fruiting bodies
D They undergo reduction division

The correct answer is:
They fuse

Solution:
Later, the parental nuclei fuse and the cells become diploid.

Topic: Biology, Biological Classification, NEET
What happens to the pistil of the flower after fertilisation in flowering plants?

Options:
A It withers and falls off
B It develops into the embryo
C It remains attached to the plant
D It develops into the seed

The correct answer is:
It remains attached to the plant

Solution:
After fertilisation in flowering plants, the pistil remains attached to the plant.

Topic: Biology, Reproduction in Organisms, NEET
What happens to the potential energy as two atoms approach each other?

Options:
A Potential energy increases.
B Potential energy remains constant.
C Potential energy decreases.
D Cannot be determined.

The correct answer is:
Potential energy decreases.

Solution:
Two atoms approach each other and potential energy decreases.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What happens to the precipitate during peptization?

Options:
A It evaporates
B It coagulates
C It absorbs ions of the electrolyte on its surface
D It remains unchanged

The correct answer is:
It absorbs ions of the electrolyte on its surface

Solution:
During peptization, the precipitate absorbs ions of the electrolyte on its surface.

Topic: Chemistry, Surface Chemistry, NEET
What happens to the pressure of a gas in a closed vessel containing powdered charcoal?

Options:
A Increases
B Decreases
C Remains constant
D Fluctuates

The correct answer is:
Decreases

Solution:
The paragraph mentions that if a gas is taken in a closed vessel containing powdered charcoal, the pressure of the gas in the enclosed vessel decreases.

Topic: Chemistry, Surface Chemistry, NEET
What happens to the pressure of a gas when it is heated at constant volume?

Options:
A The pressure decreases
B The pressure remains constant
C The pressure increases
D The pressure becomes zero

The correct answer is:
The pressure increases

Solution:
When a gas is heated at constant volume, its pressure increases.

Topic: Chemistry, States of Matter, NEET
What happens to the pV value in the pV vs. p plot for gases like carbon monoxide and methane after the negative deviation?

Options:
A It remains constant
B It continues to decrease
C It reaches a minimum value
D It increases continuously

The correct answer is:
It reaches a minimum value

Solution:
In the pV vs. p plot for gases like carbon monoxide and methane, there is a negative deviation followed by a decrease in the pV value, which reaches a minimum value characteristic of the gas.

Topic: Chemistry, States of Matter, NEET
What happens to the radius of electron orbits with an increase in the value of Z in Bohr's theory?

Options:
A The radius remains constant.
B The radius becomes larger.
C The radius becomes smaller.
D The radius becomes zero.

The correct answer is:
The radius becomes smaller.

Solution:
With an increase in the value of Z, the radius of electron orbits becomes smaller, indicating that the electron is tightly bound to the nucleus.

Topic: Chemistry, Structure of Atom, NEET
What happens to the rate of gaseous particles entering and leaving the solution phase when the pressure over the solution phase is increased?

Options:
A The rates remain the same.
B The rate of gaseous particles entering the solution increases, but the rate of leaving remains the same.
C The rate of gaseous particles leaving the solution increases, but the rate of entering remains the same.
D Both the rate of entering and leaving the solution phase increase.

The correct answer is:
Both the rate of entering and leaving the solution phase increase.

Solution:
Increasing the pressure over the solution phase results in both the rate of gaseous particles entering and leaving the solution phase increasing.

Topic: Chemistry, Solutions, NEET
What happens to the reverse current in a Zener diode when the reverse voltage is less than the Zener voltage?

Options:
A It is very high
B It is zero
C It is very low
D It is equal to the forward current

The correct answer is:
It is zero

Solution:
When the reverse voltage is less than the Zener voltage, the reverse current in a Zener diode is very low, similar to the leakage current in a standard diode.

Topic: Physics, Semiconductors, JEE Main
What happens to the sepals, petals, and stamens of the flower after fertilisation in flowering plants?

Options:
A They remain attached to the plant
B They develop into the embryo
C They wither and fall off
D They develop into the seed

The correct answer is:
They wither and fall off

Solution:
After fertilisation in flowering plants, the sepals, petals, and stamens of the flower wither and fall off.

Topic: Biology, Reproduction in Organisms, NEET
What happens to the shape of the receptor site when it accommodates a chemical messenger?

Options:
A It remains unchanged.
B It shrinks in size.
C It expands.
D It changes.

The correct answer is:
It changes.

Solution:
The shape of the receptor site changes when it accommodates a chemical messenger.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What happens to the sign of work done on the system when both(Vf - Vi) and pressure (p) are negative in the pressure-volume work formula?

Options:
A The work done becomes zero
B The work done remains negative
C The work done becomes positive
D The work done remains unchanged

The correct answer is:
The work done becomes positive

Solution:
If both(Vf - Vi)and pressure (p) are negative, the work done on the system becomes positive due to the multiplication of two negative values.

Topic: Chemistry, Thermodynamics (C), NEET
What happens to the size of the entire 4f orbitals as the nuclear charge increases along the series?

Options:
A The size of the 4f orbitals increases.
B The size of the 4f orbitals remains the same.
C The size of the 4f orbitals decreases.
D The size of the 4f orbitals varies unpredictably.

The correct answer is:
The size of the 4f orbitals decreases.

Solution:
There is a fairly regular decrease in the size of the entire 4f orbitals as the nuclear charge increases along the series.

Topic: Chemistry, d and f Block Elements, NEET
What happens to the size of the thymus as a person grows?

Options:
A Increases
B Remains the same
C Decreases
D Changes irregularly

The correct answer is:
Decreases

Solution:
The thymus is quite large at the time of birth but keeps reducing in size with age. By the time puberty is attained, it reduces to a very small size.

Topic: Biology, Human Health and Diseases, NEET
What happens to the sodium aluminate after passing CO2 gas during leaching?

Options:
A It precipitates as Al2O3.xH2O(s)
B It dissolves in the solution
C It remains in solution unchanged
D It forms sodium carbonate

The correct answer is:
It precipitates as Al2O3.xH2O(s)

Solution:
Passing CO2 gas causes the sodium aluminate to precipitate as Al2O3.xH2O(s).

Topic: Chemistry, General Principles and Processes of Isolation of Metals, NEET
What happens to the solubility of carbon dioxide in water when the temperature is increased?

Options:
A It decreases.
B It remains constant.
C It increases.
D It depends on the pressure.

The correct answer is:
It decreases.

Solution:
The amount of carbon dioxide dissolved in water decreases with an increase in temperature.

Topic: Chemistry, Chemical Equilibrium, NEET
What happens to the speed of the ball when a massive bat held firmly moves towards it and the ball rebounds?

Options:
A The ball moves faster.
B The ball moves slower.
C The ball maintains the same speed.
D The ball's speed depends on various factors.

The correct answer is:
The ball moves faster.

Solution:
Correct Option is : (A)
The ball moves faster.

Topic: Chemistry, Kinetic Theory of Gases, NEET
What happens to the temperature of the gas when the stopcock is suddenly opened between cylinders A and B, given that A contains a gas at standard temperature and pressure, B is completely evacuated, and the entire system is thermally insulated?

Options:
A The temperature of the gas in cylinder A increases.
B The temperature of the gas in cylinder A decreases.
C The temperature of the gas remains the same.
D The temperature of the gas in cylinder B increases.

The correct answer is:
The temperature of the gas remains the same.

Solution:
Correct Option is : (C)
The temperature of the gas remains the same.

Topic: Chemistry, Thermodynamics, NEET
What happens to the tendency for catenation as you go down the group in the periodic table?

Options:
A It increases
B It decreases
C It remains constant
D It fluctuates

The correct answer is:
It decreases

Solution:
As you go down the group in the periodic table, the tendency to show catenation decreases.

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
What happens to the tetracycline resistance gene when a foreign DNA is ligated at the BamH I site?

Options:
A It remains intact
B It gets activated
C It gets inactivated
D It gets eliminated

The correct answer is:
It gets inactivated

Solution:
The recombinant plasmids will lose tetracycline resistance due to insertion of foreign DNA) The transformants growing on ampicillin containing medium are then transferred on a medium containing tetracycline. The recombinants will grow in ampicillin containing medium but not on that containing tetracycline.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What happens to the three carbon-hydrogen bonds of the substrate during the progress of an SN2 reaction?

Options:
A They remain unchanged.
B They break completely.
C They move away from the attacking nucleophile.
D They form new bonds with the leaving group.

The correct answer is:
They move away from the attacking nucleophile.

Solution:
As the reaction progresses, the three carbon-hydrogen bonds of the substrate start moving away from the attacking nucleophile.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
What happens to the time interval (dt) when calculating the instantaneous rate?

Options:
A It becomes infinitely small (approaches zero).
B It remains constant.
C It becomes equal to the average rate.
D It is extended to a longer duration.

The correct answer is:
It becomes infinitely small (approaches zero).

Solution:
When calculating the instantaneous rate, the time interval (dt) becomes infinitely small (approaches zero).

Topic: Chemistry, Chemical Kinetics, NEET
What happens to the total energy of gas molecules after collisions?

Options:
A It increases
B It decreases
C It remains the same
D It becomes zero

The correct answer is:
It remains the same

Solution:
The total energy of gas molecules remains the same before and after collisions.

Topic: Chemistry, States of Matter, NEET
What happens to the value of ΔrGwhen the amount of charge passed (n) increases in the equation ΔrG = -nFE(cell)?

Options:
A ΔrG increases
B ΔrG decreases
C ΔrG remains constant
D ΔrG becomes zero

The correct answer is:
ΔrG increases

Solution:
According to the equation ΔrG = -nFE(cell), an increase in the amount of charge passed (n) leads to an increase in ΔrG.

Topic: Chemistry, Electrochemistry, NEET
What happens to the value of the equilibrium constant (K) when a reaction is strongly endothermic and ∆rH° is large and positive?

Options:
A K becomes much larger than 1
B K becomes much smaller than 1
C K remains unchanged
D K is not affected by ∆rH°

The correct answer is:
K becomes much smaller than 1

Solution:
When a reaction is strongly endothermic and ∆rH° is large and positive, the value of K becomes much smaller than 1, indicating that the reaction is unlikely to form much product.

Topic: Chemistry, Thermodynamics (C), NEET
What happens to the vapor pressure as liquid evaporates into a partially filled container?

Options:
A The vapor pressure decreases.
B The vapor pressure increases.
C The vapor pressure remains constant.
D The vapor pressure becomes zero.

The correct answer is:
The vapor pressure increases.

Solution:
Initially, as the liquid evaporates, the pressure exerted by vapors on the container's walls (vapor pressure) increases.

Topic: Chemistry, States of Matter, NEET
What happens to the velocity of the enzymatic reaction as substrate concentration increases?

Options:
A Increases and reaches a maximum
B Decreases
C Remains constant
D No effect

The correct answer is:
Increases and reaches a maximum

Solution:
With the increase in substrate concentration, the velocity of the enzymatic reaction rises at first and ultimately reaches a maximum velocity (Vmax) which is not exceeded by any further rise in substrate concentration.

Topic: Biology, Biomolecules (B), NEET
What happens to the ventricular muscles during ventricular systole?

Options:
A They relax
B They contract
C They remain unchanged
D They fluctuate

The correct answer is:
They contract

Solution:
During ventricular systole, the ventricular muscles contract.

Topic: Biology, Body Fluids and Circulation, NEET
What happens to the ventricular pressure during ventricular diastole?

Options:
A It increases
B It remains the same
C It decreases
D It opens the semilunar valves

The correct answer is:
It decreases

Solution:
The ventricles now relax (ventricular diastole) and the ventricular pressure falls.

Topic: Biology, Body Fluids and Circulation, NEET
What happens to the viscosity of a liquid when its temperature is increased?

Options:
A The viscosity of the liquid increases due to stronger intermolecular forces.
B The viscosity of the liquid remains unchanged.
C The viscosity of the liquid decreases because the kinetic energy of the molecules can overcome intermolecular forces.
D The viscosity of the liquid decreases due to increased molecular attraction.

The correct answer is:
The viscosity of the liquid decreases because the kinetic energy of the molecules can overcome intermolecular forces.

Solution:
Correct Option is : (C)
The viscosity of the liquid decreases because the kinetic energy of the molecules can overcome intermolecular forces.

Topic: Chemistry, States of Matter, NEET
What happens to the voltage of a practical battery during its use?

Options:
A It increases
B It decreases significantly
C It remains constant
D It varies unpredictably

The correct answer is:
It remains constant

Solution:
A practical battery should have voltage that does not vary appreciably during its use.

Topic: Chemistry, Electrochemistry, NEET
What happens to the voltage of the cell on the voltmeter as time passes in the Daniell cell when the circuit is closed?

Options:
A It remains constant
B It increases
C It decreases
D It fluctuates

The correct answer is:
It decreases

Solution:
The voltage of the cell on the voltmeter keeps on decreasing as time passes in the Daniell cell when the circuit is closed.

Topic: Chemistry, Electrochemistry, NEET
What happens to the volume of the gas if the pressure is halved according to Boyle's law?

Options:
A The volume remains the same.
B The volume is halved.
C The volume is doubled.
D The volume decreases by one-third.

The correct answer is:
The volume is doubled.

Solution:
Boyle's law states that if the pressure is halved, the volume of the gas doubles.

Topic: Chemistry, States of Matter, NEET
What happens to white light as it passes through a transition metal complex?

Options:
A It becomes brighter.
B It remains unchanged.
C Some of the visible spectrum is absorbed.
D It becomes ultraviolet light.

The correct answer is:
Some of the visible spectrum is absorbed.

Solution:
As white light passes through a transition metal complex, some of the visible spectrum is absorbed, resulting in a change in the color of the emerging light.

Topic: Chemistry, Coordination Compounds, NEET
What happens to Z values above the Boyle point for real gases?

Options:
A Z remains constant at 1.
B Z decreases as pressure increases.
C Z shows positive deviations from ideality.
D Z becomes zero.

The correct answer is:
Z shows positive deviations from ideality.

Solution:
Above the Boyle point, real gases show positive deviations from ideality, and their Z values are greater than one.

Topic: Chemistry, States of Matter, NEET
What happens to Z values below Boyle temperature for real gases?

Options:
A Z remains constant at 1.
B Z decreases as pressure increases, reaching a minimum value.
C Z shows negative deviations from ideality.
D Z becomes zero.

The correct answer is:
Z decreases as pressure increases, reaching a minimum value.

Solution:
Below Boyle temperature, real gases first show a decrease in Z value with increasing pressure, reaching a minimum value.

Topic: Chemistry, States of Matter, NEET
What happens when a lyophilic sol is added to a lyophobic sol?

Options:
A

Film of lyophilic sol is formed over lyophobic sol

B

Lyophilic sol is dispersed in lyophobic sol

C

Film of lyophobic sol is formed over lyophilic sol

D

Lyophobic sol is coagulated

The correct answer is:

Film of lyophilic sol is formed over lyophobic sol

Solution:
Film of lyophilic sol is formed over lyophobic sol as lyophilic sol acts as a protective colloid. Lyophobic solutions are unstable in nature. When a lyophilic sol is added to lyophobic sol, stability of lyophobic sol increases due to a protective film of lyophilic sol present over the lyophobic sol.

Topic: Chemistry, Surface Chemistry, JEE Main, JEE Main 2023 (13 Apr Shift 1)
What happens when alcohols are heated with concentrated sulfuric acid?

Options:
A They form water and carbon dioxide.
B They form aldehydes.
C They form alkenes with the elimination of water.
D They remain unchanged.

The correct answer is:
They form alkenes with the elimination of water.

Solution:
Alcohols, when heated with concentrated sulfuric acid, undergo acidic dehydration to form alkenes with the elimination of water.

Topic: Chemistry, Hydrocarbons, NEET
What happens when an inert gas is added to an equilibrium keeping volume unchanged?

Options:
A
More product will form

B
Less product will form

C
More reactant will form

D
Equilibrium will remain unchanged

The correct answer is:
Equilibrium will remain unchanged

Solution:
On adding inert gas at constant volume the total pressure of the system is increased, but the partial pressure of each reactant and product remains the same. Hence no effect on the state of equilibrium.

Topic: Chemistry, Chemical Equilibrium, JEE Main, JEE Main 2014 (12 Apr Online)
What happens when copper metal reacts with nitric acid, and how does the concentration of nitric acid affect the oxidation product?

Options:
A The oxidation product remains the same regardless of nitric acid concentration.
B Dilute nitric acid produces a different oxidation product than concentrated nitric acid.
C Cannot determine
D Copper metal does not react with nitric acid.

The correct answer is:
Dilute nitric acid produces a different oxidation product than concentrated nitric acid.

Solution:
Correct Option is : (B)
Dilute nitric acid produces a different oxidation product than concentrated nitric acid.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
What happens when daughter cells are formed?

Options:
A They can no longer grow or divide
B They die off
C They can grow and divide again
D They remain in a dormant state

The correct answer is:
They can grow and divide again

Solution:
The newly formed daughter cells can themselves grow and divide.

Topic: Biology, Cell Cycle and Cell Division, NEET
What happens when diborane (B2H6) is exposed to air?

Options:
A It releases a pleasant odor
B It forms a solid precipitate
C It spontaneously catches fire
D It remains unchanged

The correct answer is:
It spontaneously catches fire

Solution:
Diborane catches fire spontaneously upon exposure to air.

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
What happens when gelatin is mixed with gold sol?

Options:
A Gold sol coagulates.
B Gold sol remains stable.
C Gelatin undergoes precipitation.
D Gelatin forms a chemical bond with gold.

The correct answer is:
Gold sol coagulates.

Solution:
Correct Option is : (A)
Gold sol coagulates.

Topic: Chemistry, Surface Chemistry, NEET
What happens when one mole of a solid ionic compound is completely separated into its constituent ions in the gas phase?

Options:
A Energy is released
B Energy is absorbed
C Energy remains unchanged
D Energy becomes zero

The correct answer is:
Energy is absorbed

Solution:
When one mole of a solid ionic compound is completely separated into its constituent ions in the gas phase, energy is absorbed.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What happens when the activated complex decomposes?

Options:
A It absorbs energy.
B It releases energy.
C It remains unchanged.
D It becomes a stable product.

The correct answer is:
It releases energy.

Solution:
Some energy is released when the activated complex decomposes to form products.

Topic: Chemistry, Chemical Kinetics, NEET
What happens when the co-factor is removed from the enzyme?

Options:
A The catalytic activity increases.
B The catalytic activity remains unchanged.
C The catalytic activity decreases.
D The catalytic activity is lost.

The correct answer is:
The catalytic activity is lost.

Solution:
Catalytic activity is lost when the co-factor is removed from the enzyme, which testifies that they play a crucial role in the catalytic activity of the enzyme.

Topic: Biology, Biomolecules (B), NEET
What happens when xenon fluorides react with fluoride ion acceptors and fluoride ion donors?

Options:
A They form cationic species
B They form fluoroanions
C They decompose into xenon and fluorine
D They remain unreactive

The correct answer is:
They form cationic species

Solution:
Xenon fluorides can react with fluoride ion acceptors to form cationic species and with fluoride ion donors to form fluoroanions.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
What ions and substances contribute to the osmolarity gradient in the inner medulla in mammals?

Options:
A Glucose and amino acids
B Nitrogenous wastes
C NaCl and urea
D Hydrogen ions and ammonia

The correct answer is:
NaCl and urea

Solution:
The gradient of increasing osmolarity towards the inner medullary interstitium, which is mainly caused by NaCl and urea.

Topic: Biology, Excretory Products and their Elimination, NEET
What is a characteristic property of simple silicones?

Options:
A They are highly soluble in water.
B They consist of chains with alkyl or phenyl groups occupying the remaining bonding positions on each silicon.
C They are known for their strong resistance to heat.
D They are conductors of electricity.

The correct answer is:
They consist of chains with alkyl or phenyl groups occupying the remaining bonding positions on each silicon.

Solution:
Correct Option is : (B)
They consist of chains with alkyl or phenyl groups occupying the remaining bonding positions on each silicon.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET