datavorous/entrance-exam-dataset huggingface dataset:
What happens to the π-electrons in conjugated systems?

Options:
A They become localized
B They become excited
C They become delocalized
D They become ionized

The correct answer is:
They become delocalized

Solution:
In conjugated systems, the π-electrons become delocalized.

Topic: Chemistry, General Organic Chemistry, NEET
What happens to the electrons of a covalent bond when nitrogen, oxygen, or fluorine is attached to a hydrogen atom?

Options:
A Electrons are shared equally
B Electrons are shifted towards hydrogen
C Electrons are shifted towards nitrogen, oxygen, or fluorine
D Electrons are lost by hydrogen

The correct answer is:
Electrons are shifted towards hydrogen

Solution:
When nitrogen, oxygen, or fluorine forms a covalent bond with hydrogen, the electrons of the covalent bond are shifted towards the more electronegative nitrogen, oxygen, or fluorine atom.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What happens to the electrons removed as part of the hydrogen atoms during aerobic respiration?

Options:
A They are used to produce ATP
B They are not used at all
C They are used to produce NADH + H⁺
D They are passed on to molecular O₂

The correct answer is:
They are passed on to molecular O₂

Solution:
During aerobic respiration, the electrons removed as part of the hydrogen atoms are passed on to molecular O₂ with simultaneous synthesis of ATP.

Topic: Biology, Respiration in Plants, NEET
What happens to the endosperm in pea, groundnut, and beans during seed maturation?

Options:
A It is completely consumed by the developing embryo
B It persists in the mature seed
C It is discarded after embryo development
D It is converted into coconut water

The correct answer is:
It is completely consumed by the developing embryo

Solution:
In pea, groundnut, and beans, the endosperm is completely consumed by the developing embryo before seed maturation.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What happens to the energy of the eg orbitals in an octahedral complex?

Options:
A It decreases by (3/5)Do
B It increases by (3/5)Do
C It decreases by (2/5)Do
D It increases by (2/5)Do

The correct answer is:
It increases by (3/5)Do

Solution:
In an octahedral complex, the energy of the eg orbitals increases by (3/5)Do due to crystal field splitting.

Topic: Chemistry, Coordination Compounds, NEET
What happens to the enthalpy of mixing and the volume of mixing in ideal solutions?

Options:
A Enthalpy of mixing is high, and volume of mixing is low.
B Enthalpy of mixing is zero, and volume of mixing is zero.
C Enthalpy of mixing is low, and volume of mixing is high.
D Enthalpy of mixing is negative, and volume of mixing is positive.

The correct answer is:
Enthalpy of mixing is zero, and volume of mixing is zero.

Solution:
In ideal solutions, the enthalpy of mixing (ΔmixH) and the volume of mixing (ΔmixV) are both zero.

Topic: Chemistry, Solutions, NEET
What happens to the enzyme after the product is released?

Options:
A The enzyme is unchanged
B The enzyme is destroyed
C The enzyme is transformed into the product
D The enzyme binds to another substrate

The correct answer is:
The enzyme binds to another substrate

Solution:
The free enzyme is ready to bind to another molecule of the substrate and run through the catalytic cycle once again after the product is released.

Topic: Biology, Biomolecules (B), NEET
What happens to the equilibrium in weak electrolytes in their aqueous solutions?

Options:
A Equilibrium is established between ions and polar water molecules.
B Equilibrium is established between ions and strong electrolytes.
C Equilibrium is not established in weak electrolytes.
D Equilibrium is established between ions and unionized molecules.

The correct answer is:
Equilibrium is established between ions and unionized molecules.

Solution:
The paragraph mentions that in weak electrolytes, equilibrium is established between ions and the unionized molecules.

Topic: Chemistry, Ionic Equilibrium, NEET
What happens to the excess Zn²⁺ ions in ZnO crystals after the metal excess defect?

Options:
A They are removed from the crystal.
B They occupy interstitial sites.
C They combine with oxygen atoms.
D They form zinc clusters.

The correct answer is:
They occupy interstitial sites.

Solution:
In ZnO crystals after the metal excess defect, the excess Zn²⁺ ions occupy interstitial sites in the crystal lattice.

Topic: Chemistry, Solid State, NEET
What happens to the ferrimagnetic properties of substances when they are heated?

Options:
A They become more strongly attracted to a magnetic field.
B They become paramagnetic.
C They become ferromagnetic.
D They become diamagnetic.

The correct answer is:
They become paramagnetic.

Solution:
Ferrimagnetic substances lose their ferrimagnetism and become paramagnetic when they are heated.

Topic: Chemistry, Solid State, NEET
What happens to the flow of blood into the ventricles during atrial systole?

Options:
A Decreases
B Increases
C No change
D Fluctuates

The correct answer is:
Increases

Solution:
During atrial systole, the simultaneous contraction of both atria increases the flow of blood into the ventricles by about 30%.

Topic: Biology, Body Fluids and Circulation, NEET
What happens to the hydrogen bonds in a protein when it undergoes denaturation due to a change in temperature?

Options:
A They become stronger
B They are unaffected
C They are disturbed
D They break completely

The correct answer is:
They are disturbed

Solution:
When a protein undergoes denaturation due to a change in temperature, the hydrogen bonds are disturbed.

Topic: Chemistry, Biomolecules, NEET
What happens to the impure compound in the crystallization process?

Options:
A It is dissolved in a solvent.
B It is separated by filtration.
C It is heated to a high temperature.
D It is converted into vapor.

The correct answer is:
It is dissolved in a solvent.

Solution:
In the crystallization process, the impure compound is dissolved in a suitable solvent.

Topic: Chemistry, General Organic Chemistry, NEET
What happens to the incoming solar radiation that reaches the outermost atmosphere?

Options:
A It is reflected back into space
B It is absorbed by the atmosphere
C It is reflected and absorbed by the atmosphere
D It is absorbed and re-emitted by the atmosphere

The correct answer is:
It is reflected and absorbed by the atmosphere

Solution:
Clouds and gases in the atmosphere reflect about one-fourth of the incoming solar radiation, and absorb some of it. Almost half of the incoming solar radiation falls on

Topic: Biology, Environmental Issues, NEET
What happens to the insoluble soaps in hard water?

Options:
A They become soluble upon contact with water
B They separate as scum in water
C They create a lathering effect
D They enhance the cleaning power of water

The correct answer is:
They separate as scum in water

Solution:
The insoluble soaps formed in hard water separate as scum in the water.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What happens to the interference pattern if the two slits s1 and s2 in Young's double-slit experiment are illuminated by two independent identical sources?

Options:
A The intensity of the bright fringes is doubled
B The intensity of the bright fringes becomes four times
C Two sets of interference fringes overlap
D No interference pattern is observed

The correct answer is:
No interference pattern is observed

Solution:
Independent light sources are incoherent. Hence a permanent interference pattern is not obtained.

Topic: Physics, Wave Optics, NEET
What happens to the intra-pulmonary pressure when the pulmonary volume increases?

Options:
A It increases
B It decreases
C It stays the same
D It fluctuates

The correct answer is:
It decreases

Solution:
An increase in pulmonary volume decreases the intra-pulmonary pressure to less than atmospheric pressure.

Topic: Biology, Breathing and Exchange of Gases, NEET
What happens to the kinetochore during Anaphase 1 of meiosis?

Options:
A It separates homologous chromosomes
B It aligns the bivalent chromosomes on the equatorial plate
C It allows microtubules from the opposite poles of the spindle to attach
D It disappears

The correct answer is:
It allows microtubules from the opposite poles of the spindle to attach

Solution:
During Anaphase 1, the microtubules from the opposite poles of the spindle attach to the kinetochore of homologous chromosomes.

Topic: Biology, Cell Cycle and Cell Division, NEET
What happens to the layer of molecules above a chosen layer in a flowing liquid?

Options:
A It accelerates its flow
B It becomes stationary
C It retards its flow
D It becomes turbulent

The correct answer is:
It accelerates its flow

Solution:
The layer of molecules above a chosen layer in a flowing liquid accelerates its flow.

Topic: Chemistry, States of Matter, NEET
What happens to the line spectrum as the atom becomes heavier?

Options:
A It becomes simpler.
B It becomes more colorful.
C It becomes more complex.
D It becomes longer.

The correct answer is:
It becomes more complex.

Solution:
As the atom becomes heavier, the line spectrum becomes more and more complex

Topic: Chemistry, Structure of Atom, NEET
What happens to the mammary glands of the female during pregnancy?

Options:
A They undergo differentiation
B They undergo parturition
C They undergo maturation
D They undergo lactation

The correct answer is:
They undergo differentiation

Solution:
The mammary glands of the female undergo differentiation during pregnancy.

Topic: Biology, Human Reproduction, NEET
What happens to the membrane at site A when a stimulus is applied?

Options:
A The membrane becomes freely permeable to potassium ions (K⁺).
B The membrane becomes freely permeable to sodium ions (Na⁺).
C The membrane becomes impermeable to both sodium ions (Na⁺) and potassium ions (K⁺).
D The membrane becomes permeable to both sodium ions (Na⁺) and potassium ions (K⁺).

The correct answer is:
The membrane becomes freely permeable to sodium ions (Na⁺).

Solution:
When a stimulus is applied at a site on the polarised membrane, the membrane at the site A becomes freely permeable to sodium ions (Na⁺), leading to an influx of Na⁺ and a reversal of the polarity at that site.

Topic: Biology, Neural Control and Coordination, NEET
What happens to the metabolic activities of a seed when favourable conditions for growth return?

Options:
A Resume
B Stop
C Increase
D Decrease

The correct answer is:
Resume

Solution:
When favourable conditions for growth return, the metabolic activities of a seed resume, and growth takes place.

Topic: Biology, Plant - Growth and Development, NEET
What happens to the metal after being vaporized in Bredig’s Arc method?

Options:
A Coagulation
B Condensation to form colloidal particles
C Dialysis
D Centrifugation

The correct answer is:
Condensation to form colloidal particles

Solution:
After being vaporized, the metal in Bredig’s Arc method condenses to form colloidal particles.

Topic: Chemistry, Surface Chemistry, NEET
What happens to the metal during the extraction process?

Options:
A It is collected by distillation
B It is rapidly heated
C It combines with CO
D It is rapidly chilled

The correct answer is:
It is collected by distillation

Solution:
The metal produced is distilled off and collected in the extraction process.

Topic: Chemistry, General Principles and Processes of Isolation of Metals, NEET
What happens to the method of reproduction in organisms just before the onset of adverse conditions?

Options:
A It increases
B It decreases
C It shifts to sexual reproduction
D It stays the same

The correct answer is:
It shifts to sexual reproduction

Solution:
Just before the onset of adverse conditions, the method of reproduction in organisms shifts to sexual reproduction.

Topic: Biology, Reproduction in Organisms, NEET
What happens to the microspores as the anthers mature and dehydrate?

Options:
A They are arranged in a cluster of four cells
B They form the sporogenous tissue
C They develop into pollen grains
D They dissociate from each other

The correct answer is:
They develop into pollen grains

Solution:
As the anther mature, they develop into pollen grains.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What happens to the nuclear envelope at the end of telophase?

Options:
A It disintegrates
B It develops around the chromosome clusters at each pole forming two daughter nuclei
C It reforms with the help of the nucleolus
D It attaches to the centromeres of the chromosomes

The correct answer is:
It develops around the chromosome clusters at each pole forming two daughter nuclei

Solution:
At the end of telophase, the nuclear envelope develops around the chromosome clusters at each pole forming two daughter nuclei.

Topic: Biology, Cell Cycle and Cell Division, NEET
What happens to the nucleolus, golgi complex and ER at the end of telophase?

Options:
A They disintegrate
B They move to opposite poles
C They reform
D They attach to the centromeres of the chromosomes

The correct answer is:
They reform

Solution:
At the end of telophase, nucleolus, golgi complex and ER reform.

Topic: Biology, Cell Cycle and Cell Division, NEET
What happens to the original population that has undergone genetic drift?

Options:
A They become founders
B They become extinct
C They migrate to a new place
D They evolve into a different species

The correct answer is:
They become founders

Solution:
The original population that has undergone genetic drift becomes founders.

Topic: Biology, Evolution, NEET
What happens to the outermost orbital electron of an alkali metal when it is exposed to a flame during a flame test?

Options:
A It becomes stationary
B It moves to a lower energy level
C It gets excited to a higher energy level
D It is ejected from the atom

The correct answer is:
It gets excited to a higher energy level

Solution:
When an outermost orbital electron of an alkali metal is exposed to a flame during a flame test, it gets excited to a higher energy level due to the heat from the flame.

Topic: Chemistry, s Block Elements, NEET
What happens to the overall structure of silicon dioxide when aluminum atoms replace some silicon atoms?

Options:
A The structure becomes positively charged.
B The structure becomes neutral.
C The structure acquires a negative charge.
D The structure becomes metallic.

The correct answer is:
The structure acquires a negative charge.

Solution:
When aluminum atoms replace silicon atoms in silicon dioxide, the overall structure acquires a negative charge.

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
What happens to the plot of CO and CH4as the pressure increases

Options:
A First positive deviation then negative deviation
B First negative deviation then positive deviation
C Positive deviation
D Negative deviation

The correct answer is:
First negative deviation then positive deviation

Solution:
Correct Option is : 2
First negative deviation then positive deviation

Topic: Chemistry, States of Matter, NEET
What happens to the pollen grains when they reach the stigma?

Options:
A They are destroyed
B They are transported to the ovule
C They germinate
D They are stored

The correct answer is:
They germinate

Solution:
Pollen grains germinate on the stigma when they reach it.

Topic: Biology, Reproduction in Organisms, NEET
What happens to the rates of forward and reverse reactions at equilibrium?

Options:
A The forward reaction stops completely.
B The reverse reaction stops completely.
C Both the forward and reverse reactions occur at the same rate.
D The rates become unpredictable.

The correct answer is:
Both the forward and reverse reactions occur at the same rate.

Solution:
At equilibrium, both the forward and reverse reactions occur at the same rate.

Topic: Chemistry, Chemical Equilibrium, NEET
What happens to the receptors in the body with repeated use of drugs?

Options:
A Their response decreases
B Their response increases
C Their response stays the same
D They become less sensitive

The correct answer is:
Their response increases

Solution:
With repeated use of drugs, the tolerance level of the receptors in the body increases. The receptors respond only to higher doses of drugs or alcohol leading to greater intake and addiction.

Topic: Biology, Human Health and Diseases, NEET
What happens to the sewage in villages?

Options:
A It is disposed of in water bodies
B It is treated before being transported to the nearest river
C It is disposed of in landfills
D It is recycled

The correct answer is:
It is treated before being transported to the nearest river

Solution:
The sewage in villages is treated before being transported to the nearest river.

Topic: Biology, Environmental Issues, NEET
What happens to the sewage that comes out of our houses?

Options:
A It goes to the nearest river
B It is treated before being transported to the nearest river
C It is disposed of in water bodies
D It is recycled

The correct answer is:
It is treated before being transported to the nearest river

Solution:
The sewage that comes out of our houses is treated before being transported to the nearest river.

Topic: Biology, Environmental Issues, NEET
What happens to the shared electron pair in a polar covalent bond, like in HF?

Options:
A It is equally attracted by both nuclei.
B It gets displaced more towards the larger atom.
C It moves away from both nuclei.
D It forms an ionic bond.

The correct answer is:
It gets displaced more towards the larger atom.

Solution:
In a polar covalent bond, like in HF, the shared electron pair gets displaced more towards the larger atom.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What happens to the stability of carbonates and hydrogen carbonates as you move down the alkali metal group in the periodic table?

Options:
A The stability of both carbonates and hydrogen carbonates increases.
B The stability of both carbonates and hydrogen carbonates decreases.
C The stability of carbonates increases, but the stability of hydrogen carbonates decreases.
D The stability of carbonates decreases, but the stability of hydrogen carbonates increases.

The correct answer is:
The stability of both carbonates and hydrogen carbonates increases.

Solution:
As you move down the alkali metal group in the periodic table, the electropositive character of the metals increases, leading to increased stability of both carbonates (M2CO3) and hydrogen carbonates (MHCO3).

Topic: Chemistry, s Block Elements, NEET
What happens to the supply of oxygen during physical exercise?

Options:
A The supply of oxygen decreases.
B The supply of oxygen stays the same.
C The supply of oxygen increases.
D The supply of oxygen is not mentioneD)

The correct answer is:
The supply of oxygen increases.

Solution:
When physical exercise is performed, the supply of oxygen increases to meet the increased energy demand.

Topic: Biology, Neural Control and Coordination, NEET
What happens to the thoracic and pulmonary volumes when the diaphragm and intercostal muscles relax?

Options:
A They increase
B They decrease
C They stay the same
D They fluctuate

The correct answer is:
They decrease

Solution:
The relaxation of the diaphragm and intercostal muscles reduces the thoracic volume and thereby the pulmonary volume.

Topic: Biology, Breathing and Exchange of Gases, NEET
What happens to the trajectory of the bob if the string is cut when the bob is (a) at one of its extreme positions?

Options:
A The bob will continue to move in a circular path.
B The bob will fall straight down.
C The bob will move along a parabolic trajectory.
D The bob will move along a straight-line path tangent to its previous motion.

The correct answer is:
The bob will fall straight down.

Solution:
Correct Option is : (B)
The bob will fall straight down.

Topic: Chemistry, Laws of Motion, NEET
What happens to the undigested and unabsorbed substances?

Options:
A They are absorbed in the jejunum and ileum
B They are passed on to the large intestine
C They are excreted through the anus
D They are stored in the stomach

The correct answer is:
They are passed on to the large intestine

Solution:
The undigested and unabsorbed substances, that are not taken up by the body, are passed on to the large intestine.

Topic: Biology, Digestion and Absorption, NEET
What happens to the water vapors produced during the reaction in the fuel cell?

Options:
A They are condensed and added to the drinking water supply for astronauts.
B They are released into the atmosphere.
C They are converted into high-pressure steam.
D They are used as fuel.

The correct answer is:
They are condensed and added to the drinking water supply for astronauts.

Solution:
The water vapours produced during the reaction were condensed and added to the drinking water supply for the astronauts.

Topic: Chemistry, Electrochemistry, NEET
What happens to the work done during free expansion of an ideal gas?

Options:
A Work is done and can be calculated using Equation 5.2.
B Work is done, but it cannot be calculated.
C No work is done during free expansion.
D Work is done, but it is always negative.

The correct answer is:
No work is done during free expansion.

Solution:
No work is done during free expansion of an ideal gas, whether the process is reversible or irreversible.

Topic: Chemistry, Thermodynamics (C), NEET
What happens to toluene and its derivatives when treated with strong oxidising agents?

Options:
A They are reduced to aldehydes.
B They are converted to carboxylic acids.
C They undergo polymerization.
D They form esters.

The correct answer is:
They are converted to carboxylic acids.

Solution:
The strong oxidising agents convert toluene and its derivatives to benzoic acids.

Topic: Chemistry, Aldehydes, Ketones and Carboxylic Acids, NEET
What happens to waste that is not collected in garbage bins?

Options:
A It is left in the community bins.
B It is converted into compost.
C It finds its way into the sewers.
D It is recycled.

The correct answer is:
It finds its way into the sewers.

Solution:
Waste that is not collected in garbage bins may find its way into the sewers.

Topic: Chemistry, Environmental Chemistry, NEET
What happens to Z values at very low pressures for all gases?

Options:
A Z becomes infinite.
B Z equals 1.
C Z is undefined.
D Z is approximately 1, and the gases behave as ideal gases.

The correct answer is:
Z is approximately 1, and the gases behave as ideal gases.

Solution:
At very low pressures, Z is approximately 1 for all gases, and they behave as ideal gases.

Topic: Chemistry, States of Matter, NEET
What happens to zinc and copper electrodes when Eext is greater than 1.1 V in a Daniell cell?

Options:
A Zn dissolves at anode, and copper deposits at cathode.
B Copper dissolves at anode, and Zn deposits at cathode.
C No chemical reaction occurs.
D The cell potential decreases.

The correct answer is:
Copper dissolves at anode, and Zn deposits at cathode.

Solution:
When Eext is greater than 1.1 V, zinc is deposited at the zinc electrode, and copper dissolves at the copper electrode.

Topic: Chemistry, Electrochemistry, NEET
What happens when 2-butyne reacts with H2 in presence of Nickel Boride or Lindlar’s catalyst (Pd/CaCO3 — PbO)

Options:
A
B
C
D

The correct answer is:

Solution:
2-butyne forms cis-2-butene with Lindlar’s catalyst.

Topic: Chemistry, Hydrocarbons, NEET
What happens when a chalk stick is dipped in ink?

Options:
A The surface turns white.
B The ink penetrates through the surface to the bulk.
C The surface retains the color of the ink.
D The ink evaporates.

The correct answer is:
The surface retains the color of the ink.

Solution:
The paragraph mentions that when a chalk stick is dipped in ink, the surface retains the color of the ink due to the adsorption of colored molecules.

Topic: Chemistry, Surface Chemistry, NEET
What happens when a deficient mineral nutrient is provided to a plant?

Options:
A The plant continues to show deficiency symptoms
B The plant's growth is not affected
C The deficiency symptoms disappear
D The plant eventually dies

The correct answer is:
The deficiency symptoms disappear

Solution:
The deficiency symptoms of a plant vary from element to element, but they disappear when the deficient mineral nutrient is provided to the plant.

Topic: Biology, Mineral Nutrition, NEET