datavorous/entrance-exam-dataset huggingface dataset:
What does the value of the solubility product constant (Ksp) tell us?

Options:
A It indicates the solubility of the solid substance.
B It represents the rate of dissolution of a solid.
C It defines the volume of the saturated solution.
D It is a measure of the solute concentration.

The correct answer is:
It indicates the solubility of the solid substance.

Solution:
The value of the solubility product constant (Ksp) indicates the solubility of the solid substance. In this case, it is used to determine the molar solubility of barium sulphate.

Topic: Chemistry, Ionic Equilibrium, NEET
What does the value of the van't Hoff factor (i) indicate for a solution?

Options:
A It indicates the normal molar mass of the solute
B It indicates the association of solute particles
C It is always equal to 1 for all solutes
D It indicates the density of the solvent

The correct answer is:
It indicates the association of solute particles

Solution:
The value of the van't Hoff factor (i) indicates whether solute particles are associated or dissociated in a solution.

Topic: Chemistry, Solutions, NEET
What does the value of Z represent in Bohr's theory when applied to helium and lithium atoms?

Options:
A The principal quantum number.
B The electron's velocity.
C The atomic number.
D The atomic mass.

The correct answer is:
The atomic number.

Solution:
The paragraph mentions that Z is the atomic number and has values 2 and 3 for helium and lithium atoms, respectively.

Topic: Chemistry, Structure of Atom, NEET
What does the van der Waals radius measure in a solid?

Options:
A The size of the atom's core.
B The distance between two similar atoms in separate molecules.
C The distance between two dissimilar atoms in a covalent bond.
D The overall size of the atom including its valence shell.

The correct answer is:
The distance between two similar atoms in separate molecules.

Solution:
The van der Waals radius measures the distance between two similar atoms in separate molecules in a solid.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What does the van der Waals radius measure in nonbonded situations?

Options:
A The distance between two similar atoms in separate molecules in a solid.
B The distance between two dissimilar atoms in a covalent bond.
C The overall size of the atom including its valence shell.
D The radius of an atom's core in contact with the core of an adjacent atom.

The correct answer is:
The overall size of the atom including its valence shell.

Solution:
The van der Waals radius measures the overall size of the atom, including its valence shell, in nonbonded situations.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What does the variable "k" represent in the rate expression Rate = k [A]x [B]y?

Options:
A The stoichiometric coefficient of A
B The rate of reaction at a specific time
C The rate constant for the reaction
D The equilibrium constant for the reaction

The correct answer is:
The rate constant for the reaction

Solution:
In the rate expression, "k" represents the rate constant for the reaction.

Topic: Chemistry, Chemical Kinetics, NEET
What does the variable occupancy of the 4f level in lanthanoid atoms imply?

Options:
A It can have different numbers of electrons in the 4f level for different lanthanoids.
B It always has zero electrons in the 4f level.
C It follows the same pattern as the 6s level.
D It is unaffected by atomic number.

The correct answer is:
It can have different numbers of electrons in the 4f level for different lanthanoids.

Solution:
The variable occupancy of the 4f level, indicating that different lanthanoids may have different numbers of electrons in this level.

Topic: Chemistry, d and f Block Elements, NEET
What does the variable "x" represent in the rate expression "Rate = k [A]x [B]y"?

Options:
A The overall order of the reaction
B The order with respect to reactant A
C The order with respect to reactant B
D The rate constant k

The correct answer is:
The order with respect to reactant A

Solution:
In the rate expression, "x" represents the order with respect to reactant A.

Topic: Chemistry, Chemical Kinetics, NEET
What does the variable "y" represent in the rate expression "Rate = k [A]x [B]y"?

Options:
A The overall order of the reaction
B The order with respect to reactant A
C The order with respect to reactant B
D The rate constant k

The correct answer is:
The order with respect to reactant B

Solution:
In the rate expression, "y" represents the order with respect to reactant B.

Topic: Chemistry, Chemical Kinetics, NEET
What does the VSEPR Theory primarily focus on?

Options:
A Predicting the energy levels of electrons
B Determining the electronic configuration of atoms
C Predicting the geometry of molecules based on electron pair repulsions
D Determining the polarity of chemical bonds

The correct answer is:
Predicting the geometry of molecules based on electron pair repulsions

Solution:
The VSEPR Theory primarily focuses on predicting the geometry of molecules based on electron pair repulsions.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What does the weak π bond consist of in ethene?

Options:
A Two equal electron clouds above and below the carbon and hydrogen atoms' plane
B Two equal electron clouds in the same plane as carbon and hydrogen atoms
C A single electron cloud above the carbon and hydrogen atoms' plane
D A single electron cloud below the carbon and hydrogen atoms' plane

The correct answer is:
Two equal electron clouds above and below the carbon and hydrogen atoms' plane

Solution:
The weak π bond in ethene consists of two equal electron clouds distributed above and below the plane of carbon and hydrogen atoms.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What does the word diester in phosphodiester linkages indicate? Which acid is involved in the formation of this linkage?

Options:
A Carboxylic acid is involved in the formation of phosphodiester linkage.The word 'diester' in this linkage indicates that two −OH groups of carboxylic acid are involved in the formation of two ester linkages.
B Hydrochloric acid is involved in the formation of phosphodiester linkage.The word 'diester' in this linkage indicates that two −OH groups of hydrochloric acid are involved in the formation of two ester linkages.
C Phosphoric acid is involved in the formation of phosphodiester linkage. The word 'diester' in this linkage indicates that two −OH groups of phosphoric acid are involved in the formation of two ester linkages.
D Sulphuric acid is involved in the formation of phosphodiester linkage.The word 'diester' in this linkage indicates that two −OH groups of sulphuric acid are involved in the formation of two ester linkages.

The correct answer is:
Phosphoric acid is involved in the formation of phosphodiester linkage. The word 'diester' in this linkage indicates that two −OH groups of phosphoric acid are involved in the formation of two ester linkages.

Solution:
Correct Option is : (C)
Phosphoric acid is involved in the formation of phosphodiester linkage. The word 'diester' in this linkage indicates that two −OH groups of phosphoric acid are involved in the formation of two ester linkages.

Topic: Chemistry, Biomolecules, NEET
What does the word "systematics" mean?

Options:
A The study of organisms
B The systematic arrangement of organisms
C The study of evolutionary relationships
D The study of identification and classification

The correct answer is:
The systematic arrangement of organisms

Solution:
The word "systematics" is derived from the Latin word 'systema' which means systematic arrangement of organisms.

Topic: Biology, The Living World, NEET
What does thermodynamics primarily provide information about?

Options:
A Reaction mechanisms
B Feasibility of reactions
C Rate of reactions
D Molecular structures of compounds

The correct answer is:
Feasibility of reactions

Solution:
Thermodynamics tells about the feasibility of a reaction.

Topic: Chemistry, Chemical Kinetics, NEET
What does Total Lung Capacity include?

Options:
A Vital capacity and residual volume
B Residual volume, tidal volume, and inspiratory reserve volume
C Residual volume, tidal volume, and expiratory reserve volume
D Expiratory reserve volume, tidal volume, and inspiratory reserve volume

The correct answer is:
Vital capacity and residual volume

Solution:
Total Lung Capacity includes vital capacity and residual volume (VC + RV).

Topic: Biology, Breathing and Exchange of Gases, NEET
What does totipotency refer to in tissue culture?

Options:
A Ability to produce many plants in short time
B Genetic similarity among tissue culture plants
C The capacity to regenerate a whole plant from any cell or explant
D The process of obtaining virus-free plants

The correct answer is:
The capacity to regenerate a whole plant from any cell or explant

Solution:
Totipotency refers to the ability of a single cell or explant to regenerate into a whole plant in tissue culture.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What does Vital Capacity (VC) include?

Options:
A Residual volume, tidal volume, and inspiratory reserve volume
B Residual volume, tidal volume, and expiratory reserve volume
C Residual volume, inspiratory reserve volume, and functional residual capacity
D Expiratory reserve volume, tidal volume, and inspiratory reserve volume

The correct answer is:
Expiratory reserve volume, tidal volume, and inspiratory reserve volume

Solution:
Vital Capacity (VC) includes expiratory reserve volume, tidal volume, and inspiratory reserve volume (ERV, TV, and IRV).

Topic: Biology, Breathing and Exchange of Gases, NEET
What does "w/w %" stand for?

Options:
A Water-to-water percentage
B Weight-to-weight percentage
C Weight-to-mole percentage
D Volume-to-volume percentage

The correct answer is:
Weight-to-weight percentage

Solution:
"w/w %" stands for weight-to-weight percentage, which is one of the ways to express the concentration of a solution.

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET
What does X represent in the given figure?

Options:
A Thyroid Gland
B Para thyroid Gland
C Hypothyroid Gland
D None of the above

The correct answer is:
Para thyroid Gland

Solution:
In humans, four parathyroid glands are present on the back side of the thyroid gland, one pair each in the two lobes of the thyroid gland.

Topic: Biology, Chemical Coordination and Integration, NEET
What dramatic color change occurs when K2Cr2O7 is used as an indicator in a titration?

Options:
A Pink to colorless
B Blue to yellow
C Red to green
D Yellow to blue

The correct answer is:
Blue to yellow

Solution:
K2Cr2O7

Topic: Chemistry, Redox Reactions, NEET
What dynamic equilibrium exists in a saturated solution?

Options:
A Equilibrium between the solute molecules and gas molecules.
B Equilibrium between the solute molecules and solvent molecules.
C Equilibrium between the solute molecules in the solid state and in the solution.
D Equilibrium between the solute and solvents in a gas state.

The correct answer is:
Equilibrium between the solute molecules in the solid state and in the solution.

Solution:
The dynamic equilibrium that exists between the solute molecules in the solid state and in the solution in a saturated solution.

Topic: Chemistry, Chemical Equilibrium, NEET
What effect do bulky substituents have on the rate of SN2 reactions?

Options:
A They have no effect.
B They increase the rate.
C They decrease the rate.
D They reverse the reaction.

The correct answer is:
They decrease the rate.

Solution:
Bulky substituents on or near the carbon atom hinder the approaching nucleophiles, causing a dramatic inhibiting effect and decreasing the rate of SN2 reactions.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
What effect do electron-releasing groups have on the basic strength of substituted anilines?

Options:
A Increase basic strength
B Decrease basic strength
C No effect on basic strength
D Depend on the pH of the solution

The correct answer is:
Increase basic strength

Solution:
Electron-releasing groups like -OCH3 and -CH3 increase the basic strength of substituted anilines by donating electron density to the nitrogen atom.

Topic: Chemistry, Amines, NEET
What effect does a catalyst have on Gibbs energy (ΔG) of a reaction?

Options:
A It increases ΔG
B It decreases ΔG
C It has no effect on ΔG
D It reverses ΔG

The correct answer is:
It has no effect on ΔG

Solution:
A catalyst does not alter the Gibbs energy (ΔG) of a reaction.

Topic: Chemistry, Chemical Kinetics, NEET
What effect does a catalyst have on the equilibrium of a chemical reaction?

Options:
A It shifts the equilibrium to the left
B It shifts the equilibrium to the right
C It does not affect the equilibrium
D It depends on the specific reaction

The correct answer is:
It does not affect the equilibrium

Solution:
A catalyst does not affect the equilibrium composition of a reaction mixture.

Topic: Chemistry, Chemical Equilibrium, NEET
What effect does a nitro group (-NO2) have on the electron density in the benzene ring?

Options:
A It increases the electron density.
B It has no effect on electron density.
C It decreases the electron density due to its strong -I effect.
D It decreases the electron density due to its strong +I effect.

The correct answer is:
It decreases the electron density due to its strong -I effect.

Solution:
The nitro group (-NO2) decreases the electron density in the benzene ring due to its strong electron-withdrawing (-I) effect.

Topic: Chemistry, Hydrocarbons, NEET
What effect does binding of an inhibitor at the allosteric site have on substrate recognition?

Options:
A It enhances substrate recognition.
B It has no effect on substrate recognition.
C It prevents substrate recognition.
D It speeds up substrate recognition.

The correct answer is:
It prevents substrate recognition.

Solution:
Binding of an inhibitor at the allosteric site changes the shape of the active site in such a way that the substrate cannot recognize it.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What effect does branching of an alkane chain has on its boiling point?

Options:
A Branching of an alkane chain increases its boiling point because it increases the surface area available for van der Waals forces.
B Branching of an alkane chain has no significant effect on its boiling point.
C Branching of an alkane chain decreases its boiling point because it reduces the surface area available for van der Waals forces.
D The effect of branching on the boiling point of an alkane chain depends on the specific arrangement and length of the branches.

The correct answer is:
Branching of an alkane chain decreases its boiling point because it reduces the surface area available for van der Waals forces.

Solution:
Correct Option is : (C)
Branching of an alkane chain decreases its boiling point because it reduces the surface area available for van der Waals forces.

Topic: Chemistry, Hydrocarbons, NEET
What effect does Brownian movement have on the settling of particles in sols?

Options:
A Accelerates settling
B Prevents settling
C Has no effect on settling
D Causes random settling

The correct answer is:
Prevents settling

Solution:
According to the paragraph, Brownian movement has a stirring effect that prevents the particles from settling, contributing to the stability of sols.

Topic: Chemistry, Surface Chemistry, NEET
What effect does delocalization of π-electrons in conjugated systems have on the system?

Options:
A It reduces polarity
B It increases polarity
C It has no effect on polarity
D It converts the system to a non-conjugated one

The correct answer is:
It increases polarity

Solution:
In conjugated systems, the delocalization of π-electrons results in the development of polarity in the system.

Topic: Chemistry, General Organic Chemistry, NEET
What effect does doping have on the conductivity of semiconductors?

Options:
A It decreases the conductivity.
B It has no effect on the conductivity.
C It increases the conductivity.
D It changes the type of material from a semiconductor to an insulator.

The correct answer is:
It increases the conductivity.

Solution:
Doping increases the conductivity of semiconductors by introducing impurities that alter the number of charge carriers, enhancing their conductivity.

Topic: Chemistry, Solid State, NEET
What effect does greater viscosity have on the flow of a liquid?

Options:
A It makes the liquid flow more rapidly
B It has no effect on the flow of the liquid
C It makes the liquid flow more slowly
D It transforms the liquid into a solid

The correct answer is:
It makes the liquid flow more slowly

Solution:
Greater viscosity results in the liquid flowing more slowly.

Topic: Chemistry, States of Matter, NEET
What effect does high altitude have on atmospheric pressure?

Options:
A It increases atmospheric pressure.
B It decreases atmospheric pressure.
C It has no effect on atmospheric pressure.
D It stabilizes atmospheric pressure.

The correct answer is:
It decreases atmospheric pressure.

Solution:
At high altitudes, atmospheric pressure is low.

Topic: Chemistry, States of Matter, NEET
What effect does histamine have on the muscles in the walls of fine blood vessels?

Options:
A It contracts them.
B It relaxes them.
C It has no effect on them.
D It causes nasal congestion.

The correct answer is:
It relaxes them.

Solution:
Histamine relaxes the muscles in the walls of fine blood vessels.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What effect does increasing atomic size have on the melting and boiling points of alkali metals?

Options:
A Increases them
B Decreases them
C No effect
D It depends on other factors.

The correct answer is:
Increases them

Solution:
Increasing atomic size generally leads to higher melting and boiling points in alkali metals.

Topic: Chemistry, s Block Elements, NEET
What effect does increasing the temperature of the substance have on the fraction of molecules with energies greater than Ea?

Options:
A It decreases the fraction
B It has no effect on the fraction
C It increases the fraction
D It fluctuates randomly

The correct answer is:
It increases the fraction

Solution:
Increasing the temperature increases the fraction of molecules with energies greater than Ea.

Topic: Chemistry, Chemical Kinetics, NEET
What effect does raising the temperature have on the equilibrium of an exothermic reaction, such as the production of ammonia?

Options:
A It shifts the equilibrium to the right
B It shifts the equilibrium to the left
C It has no effect on the equilibrium
D It depends on the pressure

The correct answer is:
It shifts the equilibrium to the left

Solution:
The paragraph states that raising the temperature of an exothermic reaction, like the production of ammonia, shifts the equilibrium to the left.

Topic: Chemistry, Chemical Equilibrium, NEET
What effect does resonance have on the electron density in the benzene ring?

Options:
A It decreases electron density
B It has no effect on electron density
C It increases electron density at meta-positions
D It increases electron density at ortho- and para- positions

The correct answer is:
It increases electron density at ortho- and para- positions

Solution:
Resonance increases electron density at ortho- and para- positions in the benzene ring.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
What effect does the addition of manganese dioxide have on the decomposition of potassium chlorate?

Options:
A It raises the decomposition temperature
B It accelerates the decomposition at a lower temperature
C It has no effect on decomposition
D It forms a new compound with potassium chlorate

The correct answer is:
It accelerates the decomposition at a lower temperature

Solution:
The paragraph states that the addition of manganese dioxide accelerates the decomposition of potassium chlorate at a considerably lower temperature range.

Topic: Chemistry, Surface Chemistry, NEET
What effect does the carboxyl group have on the reactivity of the aromatic ring in electrophilic substitution reactions?

Options:
A Activation
B Deactivation
C Ortho-directing
D Para-directing

The correct answer is:
Deactivation

Solution:
The carboxyl group deactivates the aromatic ring in electrophilic substitution reactions, reducing its reactivity.

Topic: Chemistry, Aldehydes, Ketones and Carboxylic Acids, NEET
What effect does the decrease in metallic radius coupled with the increase in atomic mass have on the density of these elements?

Options:
A It decreases the density.
B It has no effect on density.
C It increases the density.
D It varies unpredictably.

The correct answer is:
It increases the density.

Solution:
The decrease in metallic radius coupled with the increase in atomic mass results in a general increase in the density of these elements.

Topic: Chemistry, d and f Block Elements, NEET
What effect does the degree of dissociation have on the experimentally determined molar mass of a dissociating solute?

Options:
A It increases the molar mass
B It doesn't affect the molar mass
C It makes the molar mass equal to the true value
D It makes the experimentally determined molar mass lower than the true value

The correct answer is:
It makes the experimentally determined molar mass lower than the true value

Solution:
The paragraph states that the degree of dissociation causes the experimentally determined molar mass to be lower than the true value.

Topic: Chemistry, Solutions, NEET
What effect does the extent of distortion (polarization) of the anion have on the percent covalent character of an ionic bond?

Options:
A It increases the percent covalent character.
B It decreases the percent covalent character.
C It has no effect on the percent covalent character.
D It reverses the percent covalent character.

The correct answer is:
It increases the percent covalent character.

Solution:
The extent of distortion (polarization) of the anion is a factor that determines the percent covalent character, suggesting that it increases the covalent character

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What effect does the location of electron density in a bonding molecular orbital have on the repulsion between nuclei?

Options:
A Increases the repulsion
B Decreases the repulsion
C Has no effect on repulsion
D Induces electron transfer

The correct answer is:
Decreases the repulsion

Solution:
The location of electron density in a bonding molecular orbital between the nuclei decreases the repulsion between the nuclei of bonded atoms.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What effect does the loss of exchange energy have on ionization enthalpy?

Options:
A It decreases ionization enthalpy
B It increases ionization enthalpy
C It has no effect on ionization enthalpy
D It stabilizes the energy state

The correct answer is:
It increases ionization enthalpy

Solution:
The loss of exchange energy increases the stability, making ionization more difficult.

Topic: Chemistry, d and f Block Elements, NEET
What effect does the polarisability of the anion have on the percent covalent character of an ionic bond?

Options:
A It increases the percent covalent character.
B It decreases the percent covalent character.
C It has no effect on the percent covalent character.
D It reverses the percent covalent character.

The correct answer is:
It increases the percent covalent character.

Solution:
The polarisability of the anion is a factor that determines the percent covalent character, suggesting that it increases the covalent character.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What effect does the polarizing power of the cation have on the percent covalent character of an ionic bond?

Options:
A It increases the percent covalent character.
B It decreases the percent covalent character.
C It has no effect on the percent covalent character.
D It reverses the percent covalent character.

The correct answer is:
It increases the percent covalent character.

Solution:
The polarizing power of the cation is a factor that determines the percent covalent character, suggesting that it increases the covalent character.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET