datavorous/entrance-exam-dataset huggingface dataset:
What happens to the dihedral angle of the H2O2 molecule as it transitions from the gas phase to the solid phase?

Options:
A It remains the same
B It decreases
C It increases
D It becomes 180°

The correct answer is:
It increases

Solution:
The dihedral angle of the H2O2 molecule increases from 111.5° in the gas phase to 90.2° in the solid phase.

Topic: Chemistry, Hydrogen, NEET
What happens to the diploid phase in the life cycle of sexually reproducing organisms after meiosis?

Options:
A It remains the same
B It increases
C It decreases
D It is restored by fertilization

The correct answer is:
It is restored by fertilization

Solution:
Meiosis ensures the production of haploid phase in the life cycle of sexually reproducing organisms, which is then restored to diploid phase through fertilization.

Topic: Biology, Cell Cycle and Cell Division, NEET
What happens to the domains in a ferromagnetic substance when it is placed in a magnetic field?

Options:
A The domains become randomly oriented.
B The domains get canceled out.
C The domains align in the direction of the magnetic field.
D The domains repel each other.

The correct answer is:
The domains align in the direction of the magnetic field.

Solution:
When a ferromagnetic substance is placed in a magnetic field, the domains align in the direction of the magnetic field.

Topic: Chemistry, Solid State, NEET
What happens to the electrode potential at equilibrium in a half-cell?

Options:
A It becomes zero.
B It becomes positive.
C It becomes negative.
D It remains constant.

The correct answer is:
It remains constant.

Solution:
At equilibrium, the electrode potential remains constant in a half-cell.

Topic: Chemistry, Electrochemistry, NEET
What happens to the electromeric effect when an attacking reagent is not present?

Options:
A It becomes stronger.
B It becomes weaker.
C It remains unchanged.
D It disappears.

The correct answer is:
It disappears.

Solution:
The electromeric effect is annulled as soon as the attacking reagent is removed from the domain of the reaction, which means it disappears.

Topic: Chemistry, General Organic Chemistry, NEET
What happens to the electromeric effect when the attacking reagent is removed from the reaction?

Options:
A It remains unchanged.
B It is enhanced.
C It is annulled.
D It becomes irreversible.

The correct answer is:
It is annulled.

Solution:
The electromeric effect is annulled as soon as the attacking reagent is removed from the domain of the reaction.

Topic: Chemistry, General Organic Chemistry, NEET
What happens to the electron waves of bonding atoms during the formation of a bonding molecular orbital?

Options:
A They cancel each other.
B They reinforce each other.
C They remain unchanged.
D They repel each other.

The correct answer is:
They reinforce each other.

Solution:
During the formation of a bonding molecular orbital, the electron waves of bonding atoms reinforce each other due to constructive interference.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What happens to the electron waves of bonding atoms during the formation of an antibonding molecular orbital?

Options:
A They reinforce each other.
B They cancel each other.
C They become stationary.
D They remain unchanged.

The correct answer is:
They cancel each other.

Solution:
During the formation of an antibonding molecular orbital, the electron waves of bonding atoms cancel each other due to destructive interference.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What happens to the embryo if favourable conditions are available?

Options:
A It enters a state of dormancy
B It germinates
C It becomes inactive
D It remains unchanged

The correct answer is:
It germinates

Solution:
If favourable conditions are available (adequate moisture, oxygen and suitable temperature), the embryo may germinate.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What happens to the energy of an electron when it is attracted by the nucleus and is present in orbit n in Bohr's model?

Options:
A The energy remains constant.
B The energy is emitted and its value is lowered.
C The energy increases.
D The energy becomes infinite.

The correct answer is:
The energy is emitted and its value is lowered.

Solution:
"When the electron is attracted by the nucleus and is present in orbit n, the energy is emitted, and its energy is lowered."

Topic: Chemistry, Structure of Atom, NEET
What happens to the energy of the bonding orbital compared to the parent orbitals?

Options:
A It remains the same.
B It is raised.
C It is lowered.
D It becomes zero.

The correct answer is:
It is lowered.

Solution:
The energy of the bonding orbital is lowered compared to the parent orbitals.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What happens to the enthalpy of solution as more solvent is used in the process?

Options:
A It decreases.
B It increases.
C It remains constant.
D It becomes negative.

The correct answer is:
It decreases.

Solution:
As more solvent is used in the process, the enthalpy of solution decreases and approaches a limiting value, which is the value in infinitely dilute solution.

Topic: Chemistry, Thermodynamics (C), NEET
What happens to the entropy of a pure crystalline substance as the temperature approaches absolute zero?

Options:
A The entropy increases.
B The entropy remains constant.
C The entropy approaches zero.
D The entropy becomes negative.

The correct answer is:
The entropy approaches zero.

Solution:
The entropy of a pure crystalline substance approaches zero as the temperature approaches absolute zero.

Topic: Chemistry, Thermodynamics (C), NEET
What happens to the equilibrium when an inert gas like argon is added at constant volume to a reaction?

Options:
A The equilibrium shifts in the forward direction.
B The equilibrium remains undisturbed.
C The equilibrium becomes unstable.
D The equilibrium shifts in the reverse direction.

The correct answer is:
The equilibrium remains undisturbed.

Solution:
When an inert gas is added at constant volume, the equilibrium remains undisturbed because it does not change the partial pressures or molar concentrations of the reacting substances.

Topic: Chemistry, Chemical Equilibrium, NEET
What happens to the filtrate when animal charcoal is added to a solution of methylene blue?

Options:
A It turns colorless
B It becomes darker
C It remains unchanged
D It solidifies

The correct answer is:
It turns colorless

Solution:
The paragraph mentions that when animal charcoal is added to a solution of methylene blue, the filtrate turns colorless.

Topic: Chemistry, Surface Chemistry, NEET
What happens to the freedom of movement of gas molecules during adsorption?

Options:
A It increases
B It remains constant
C It becomes unrestricted
D It becomes restricted

The correct answer is:
It becomes restricted

Solution:
The paragraph mentions that when a gas is adsorbed, the freedom of movement of its molecules becomes restricted.

Topic: Chemistry, Surface Chemistry, NEET
What happens to the fringe pattern if in the path of one of the slits a glass plate which absorbs 50% energy is introduced?

Options:
A The bright fringes become brighter and dark fringes become darker
B No fringes are observed
C The fringe width decreases
D None of the above

The correct answer is:
None of the above

Solution:
Intensity of dark and bright fringes is given by
IDark=I1-I22
IBright=I1+I22
When there is no glass plate
I1=I2=I0
∴IDark=0 and IBright=4I0
But when glass plate is introduced in the path of one of the slits,
I2=I02
∴ IDark≠0 increases and IBright decreases.
Fringe width remains same.

Topic: Physics, Wave Optics, NEET
What happens to the generative cell in plants that shed pollen in two-celled condition?

Options:
A Forms two male gametes
B Dies
C Forms one male gamete
D Remains unchanged

The correct answer is:
Forms two male gametes

Solution:
In such plants, the generative cell divides and forms the two male gametes during the growth of the pollen tube in the stigma.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What happens to the growth of fish when the concentration of dissolved oxygen in water falls below 6 ppm?

Options:
A Fish grow faster.
B Fish growth remains unaffected.
C Fish growth gets inhibited.
D Fish growth becomes rapid.

The correct answer is:
Fish growth gets inhibited.

Solution:
When the concentration of dissolved oxygen in water falls below 6 ppm, it inhibits the growth of fish.

Topic: Chemistry, Environmental Chemistry, NEET
What happens to the impurities in the mother liquor after crystallization?

Options:
A They are evaporated.
B They are cooled.
C They remain dissolved.
D They are adsorbed over activated charcoal.

The correct answer is:
They remain dissolved.

Solution:
The impurities in the mother liquor after crystallization remain dissolved unless additional purification steps are taken.

Topic: Chemistry, General Organic Chemistry, NEET
What happens to the initial uniformity of particle speeds in a gas?

Options:
A It is maintained throughout
B It changes due to a loss of kinetic energy
C It is disrupted by molecular collisions
D It becomes constant at a particular temperature

The correct answer is:
It is disrupted by molecular collisions

Solution:
The initial uniformity of particle speeds in a gas is disrupted by molecular collisions.

Topic: Chemistry, States of Matter, NEET
What happens to the intensity of light from a bulb if the distance from the bulb is doubled? As a laser beam travels across the length of room, its intensity essentially remain constant.
What geometrical characteristic of LASER beam is responsible for the constant intensity which is missing in the case of light from the bulb?

Options:

None

Solution:
Bulb spreads its light in all around spherically and symmetrically. So, if the distance is doubled, the area of spherical region $\left(4 \pi r^2\right)$ will become four times.
So, the intensity becomes one fourth the initial value in straight line for spherical source $\left(\mathrm{I} \propto 1 / 4 \pi \mathrm{r}^2\right)$ but in case of laser it does not spread in all directions, so its intensity remain almost same.
Geometrical characteristic of LASER beam which is responsible for the constant intensity are :
(i) Unidirection (ii) Monochromatic
(iii) Coherent light (iv) Highly collimated
These characteristic are missing in the case of light from the bulb.

Topic: Physics, Electromagnetic Waves
What happens to the intermediate complex formed by a catalyst in a chemical reaction?

Options:
A It forms permanent bonds with the products
B It remains stable and unchanged
C It decomposes to yield products and the catalyst
D It consumes all the reactants

The correct answer is:
It decomposes to yield products and the catalyst

Solution:
The intermediate complex formed by a catalyst in a chemical reaction decomposes to yield products and the catalyst.

Topic: Chemistry, Chemical Kinetics, NEET
What happens to the internal energy of a system when matter leaves the system?

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

The correct answer is:
It decreases

Solution:
When matter leaves the system, the internal energy of the system decreases.

Topic: Chemistry, Thermodynamics (C), NEET
What happens to the internodes when a shoot tip transforms into a flower?

Options:
A Elongates
B Shrinks
C Remains the same
D Changes its direction

The correct answer is:
Shrinks

Solution:
Internodes do not elongate and the axis gets condensed when a shoot tip transforms into a flower.

Topic: Biology, Morphology of Flowering Plants, NEET
What happens to the ionic character as the oxidation number of a metal increases?

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

The correct answer is:
It decreases

Solution:
As the oxidation number of a metal increases, ionic character decreases.

Topic: Chemistry, d and f Block Elements, NEET
What happens to the ionic radius of an anion when one or more electrons are added to it?

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

The correct answer is:
It increases

Solution:
The addition of one or more electrons to an anion results in a larger ionic radius.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What happens to the Kp of following reaction as the temperature increases N2O4(g) ⇋ 2NO2(g)

Options:
A decreases
B increases
C remains same
D cannot say

The correct answer is:
increases

Solution:
Correct Option is : 2
increases

Topic: Chemistry, Chemical Equilibrium, NEET
What happens to the layer of molecules in immediate contact with a fixed surface when a liquid flows over it?

Options:
A The layer accelerates its flow
B The layer remains stationary
C The layer becomes turbulent
D The layer retreats from the surface

The correct answer is:
The layer remains stationary

Solution:
When a liquid flows over a fixed surface, the layer of molecules in immediate contact with the surface remains stationary.

Topic: Chemistry, States of Matter, NEET
What happens to the length of the side chain during the oxidation of alkylbenzenes to carboxylic acids?

Options:
A The side chain is shortened.
B The side chain remains unchanged.
C The side chain is elongated.
D The side chain becomes a ketone.

The correct answer is:
The side chain is shortened.

Solution:
During the oxidation of alkylbenzenes to carboxylic acids, the entire side chain is shortened to form the carboxyl group.

Topic: Chemistry, Aldehydes, Ketones and Carboxylic Acids, NEET
What happens to the litmus solution when shaken with charcoal?

Options:
A It becomes colored
B It becomes colorless
C It forms a precipitate
D It remains unchanged

The correct answer is:
It becomes colorless

Solution:
The paragraph states that the litmus solution becomes colorless when shaken with charcoal.

Topic: Chemistry, Surface Chemistry, NEET
What happens to the magnetic moments of domains in an unmagnetized piece of a ferromagnetic substance?

Options:
A They become stronger.
B They get canceled out.
C They repel each other.
D They align randomly.

The correct answer is:
They get canceled out.

Solution:
In an unmagnetized piece of a ferromagnetic substance, the magnetic moments of domains are randomly oriented and get canceled out.

Topic: Chemistry, Solid State, NEET
What happens to the magnetic moments of domains in antiferromagnetic substances?

Options:
A They become stronger.
B They align in the same direction.
C They become permanent magnets.
D They cancel out each other's magnetic moment.

The correct answer is:
They cancel out each other's magnetic moment.

Solution:
In antiferromagnetic substances, the magnetic moments of domains are oriented in opposite directions and cancel out each other's magnetic moment.

Topic: Chemistry, Solid State, NEET
What happens to the magnetism of diamagnetic substances in the absence of a magnetic field?

Options:
A It becomes stronger.
B It remains the same.
C It weakens and eventually disappears.
D It becomes permanent.

The correct answer is:
It weakens and eventually disappears.

Solution:
Diamagnetic substances lose their magnetism in the absence of a magnetic field, and it weakens until it disappears.

Topic: Chemistry, Solid State, NEET
What happens to the mammary glands during pregnancy?

Options:
A They undergo differentiation
B They secrete hormones
C They remain unchanged
D They undergo regression

The correct answer is:
They undergo differentiation

Solution:
The mammary glands of the female undergo differentiation during pregnancy and start producing milk by the process called lactation.

Topic: Biology, Human Reproduction, NEET
What happens to the mass and composition of manganese dioxide when added to potassium chlorate?

Options:
A It remains unchanged
B It decreases
C It increases
D It transforms into a new substance

The correct answer is:
It remains unchanged

Solution:
The paragraph mentions that the added manganese dioxide remains unchanged with respect to its mass and composition.

Topic: Chemistry, Surface Chemistry, NEET
What happens to the mass number and atomic number of an element when it emits γ-radiation

Options:
A Mass number decreases by four and atomic number decreases by two.
B Mass number and atomic number remain unchanged.
C Mass number remains unchanged while atomic number decreases by one.
D Mass number increases by four and atomic number increases by two.

The correct answer is:
Mass number and atomic number remain unchanged.

Solution:
In radioactive decay of alpha particle and beta particle, the atomic number changes in both cases and in alpha decay mass number also change, after decay, the element gets in the excited state to take it in the ground state the gamma emission itself occurs and energy released in terms of the photon, but there is no change in atomic number and mass number after gamma decay.

Topic: Physics, Nuclear Physics, NEET, NEET 2020 (Phase 2)
What happens to the mass of ice and water when they are not in equilibrium?

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

The correct answer is:
It fluctuates.

Solution:
When ice and water are not in equilibrium, the mass can fluctuate.

Topic: Chemistry, Chemical Equilibrium, NEET
What happens to the maxima of the curve of intensity of radiation as the temperature increases?

Options:
A They remain constant
B They decrease
C They shift to short wavelengths
D They become unpredictable

The correct answer is:
They shift to short wavelengths

Solution:
As the temperature increases, the maxima of the curve of intensity of radiation shifts to shorter wavelengths.

Topic: Chemistry, Structure of Atom, NEET
What happens to the metabolic activity of the embryo as the seed matures?

Options:
A It increases
B It remains unchanged
C It slows down
D It becomes dormant

The correct answer is:
It slows down

Solution:
As the seed matures, its water content is reduced and seeds become relatively dry. The general metabolic activity of the embryo slows down.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What happens to the metal ring supported by a cardboard on top of a fixed solenoid, when the current in the solenoid is switched off?

Options:
A The ring will fall off the cardboard due to a downward force.
B The ring will remain on the cardboard due to an increased upward reaction from the cardboard.
C The ring will move upwards due to the magnetic field created by the solenoid.
D The ring will experience a repulsive force from the solenoid, causing it to move away.

The correct answer is:
The ring will remain on the cardboard due to an increased upward reaction from the cardboard.

Solution:
Correct Option is : (B)
The ring will remain on the cardboard due to an increased upward reaction from the cardboard.

Topic: Chemistry, Electromagnetic Induction, NEET
What happens to the molecules that come into contact with the surface of a solid?

Options:
A They penetrate into the bulk
B They repel each other
C They accumulate at the surface
D They remain evenly distributed

The correct answer is:
They accumulate at the surface

Solution:
The paragraph states that the molecules that come into contact with the surface have the tendency to accumulate at the surface.

Topic: Chemistry, Surface Chemistry, NEET
What happens to the new DNA molecules formed during S and G₂ phases of interphase?

Options:
A They are not distinct but intertwined.
B They are destroyed
C They remain unchanged
D They move towards opposite poles of the cell

The correct answer is:
They are not distinct but intertwined.

Solution:
During S and G₂ phases of interphase, the new DNA molecules formed are not distinct but intertwined.

Topic: Biology, Cell Cycle and Cell Division, NEET
What happens to the nuclear envelope during Anaphase II in meiosis?

Options:
A It reappears
B It breaks down
C It remains unchanged
D It becomes elongated

The correct answer is:
It breaks down

Solution:
The nuclear envelope disappears during Anaphase II in meiosis.

Topic: Biology, Cell Cycle and Cell Division, NEET
What happens to the nuclear envelope during the diakinesis stage?

Options:
A It becomes more visible
B It remains unchanged
C It disappears
D It re-appears

The correct answer is:
It disappears

Solution:
During diakinesis stage, the nuclear envelope also breaks down.

Topic: Biology, Cell Cycle and Cell Division, NEET
What happens to the nucleolus during diakinesis stage?

Options:
A It becomes more visible
B It remains unchanged
C It disappears
D It re-appears

The correct answer is:
It disappears

Solution:
During diakinesis stage, the nucleolus disappears.

Topic: Biology, Cell Cycle and Cell Division, NEET
What happens to the number of helper T-lymphocytes in the body of the infected person?

Options:
A Increases
B Remains the same
C Decreases
D Fluctuates

The correct answer is:
Decreases

Solution:
Due to the replication of HIV in helper T-lymphocytes, there is a progressive decrease in the number of helper T-lymphocytes in the body of the infected person.

Topic: Biology, Human Health and Diseases, NEET
What happens to the number of molecules with energies higher or lower than the peak value as temperature is raised?

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

The correct answer is:
It decreases

Solution:
As temperature is raised, the number of molecules with energies higher or lower than the peak value decreases.

Topic: Chemistry, Chemical Kinetics, NEET
What happens to the odour of aldehydes and ketones as the size of the molecule increases?

Options:
A The odour becomes sharper
B The odour becomes pungent
C The odour becomes less pungent and more fragrant
D The odour remains the same

The correct answer is:
The odour becomes less pungent and more fragrant

Solution:
As the size of the aldehyde or ketone molecule increases, the odour becomes less pungent and more fragrant.

Topic: Chemistry, Aldehydes, Ketones and Carboxylic Acids, NEET
What happens to the ovary 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 fruit

The correct answer is:
It develops into the fruit

Solution:
After fertilisation in flowering plants, the ovary develops into the fruit.

Topic: Biology, Reproduction in Organisms, NEET
What happens to the ovary after fertilization in flowering plants?

Options:
A Ovules mature into seeds
B Ovary withers and falls off
C Ovary develops into fruit
D Ovary remains attached to the plant

The correct answer is:
Ovary develops into fruit

Solution:
After fertilization, ovary develops into fruit and ovules mature into seeds.

Topic: Biology, Reproduction in Organisms, NEET
What happens to the ovules after fertilisation in flowering plants?

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

The correct answer is:
They develop into the seed

Solution:
After fertilisation in flowering plants, the ovules develop into the seed.

Topic: Biology, Reproduction in Organisms, NEET
What happens to the ovules after fertilisation?

Options:
A They mature into a fruit
B They remain unchanged
C They develop into seeds
D They are no longer needed

The correct answer is:
They develop into seeds

Solution:
After fertilisation, the ovules develop into seeds and the ovary matures into a fruit.

Topic: Biology, Morphology of Flowering Plants, NEET
What happens to the oxidation state of an element when it acts as a reducing agent?

Options:
A It remains unchanged
B It increases
C It decreases
D It becomes a noble gas

The correct answer is:
It increases

Solution:
When an element acts as a reducing agent, its oxidation state increases as it donates electrons to another substance.

Topic: Chemistry, Redox Reactions, NEET