datavorous/entrance-exam-dataset huggingface dataset:
What did Priestley observe about the burning of a candle in a closed space?

Options:
A The candle burned continuously
B The candle burned out quickly
C The candle burned longer than usual
D The candle did not burn at all

The correct answer is:
The candle burned out quickly

Solution:
Priestley observed that a candle burning in a closed space soon gets extinguished. He concluded that breathing animals and burning candles somehow damage the air.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What did Proust discover about the composition of elements in the two samples of cupric carbonate?

Options:
A The composition was different in both samples.
B The composition was the same for the natural sample only.
C The composition was the same for the synthetic sample only.
D The composition was the same for both samples.

The correct answer is:
The composition was the same for both samples.

Solution:
Proust found that the composition of elements present in both samples of cupric carbonate was the same.

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET
What did Rutherford's experiment reveal about the distribution of positive charge within the atom?

Options:
A The positive charge is evenly spread throughout the atom.
B The positive charge is concentrated in a very small volume at the center of the atom.
C The positive charge is located on the surface of the atom.
D The positive charge is distributed in concentric shells.

The correct answer is:
The positive charge is concentrated in a very small volume at the center of the atom.

Solution:
Rutherford's experiment revealed that the positive charge is concentrated in a very small volume at the center of the atom.

Topic: Chemistry, Structure of Atom, NEET
What did Stanley Cohen and Herbert Boyer achieve in 1972?

Options:
A Construction of an artificial plasmid
B Isolation of the antibiotic resistance gene
C Linking of the antibiotic resistance gene with a native plasmid of Salmonella typhimurium
D Discovery of restriction enzymes

The correct answer is:
Linking of the antibiotic resistance gene with a native plasmid of Salmonella typhimurium

Solution:
Stanley Cohen and Herbert Boyer achieved linking of the antibiotic resistance gene with a native plasmid of Salmonella typhimurium in 1972.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What did the digestion with DNase indicate about the transforming principle?

Options:
A The transforming principle was RNA
B The transforming principle was a protein
C The transforming principle was DNA
D The transforming principle was a lipid

The correct answer is:
The transforming principle was DNA

Solution:
Digestion with DNase inhibited transformation, suggesting that the transforming substance was DNA.

Topic: Biology, Molecular Basis of Inheritance, NEET
What did the early Earth lack?

Options:
A Water
B Oxygen
C An atmosphere
D Ozone

The correct answer is:
An atmosphere

Solution:
There was no atmosphere on early Earth.

Topic: Biology, Evolution, NEET
What did the experiment described in the paragraph show about KOH?

Options:
A KOH is required for photosynthesis
B KOH is not required for photosynthesis
C KOH has a positive effect on photosynthesis
D KOH has a negative effect on photosynthesis

The correct answer is:
KOH has a negative effect on photosynthesis

Solution:
The experiment described in the paragraph showed that KOH has a negative effect on photosynthesis. This is concluded from the observation that the portion of the leaf in the test tube with KOH, which absorbs CO₂, tested negative for starch while the portion that was exposed to air tested positive.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What did the experiment of Avery, MacLeod, and McCarty aim to determine?

Options:
A The chemical nature of the transforming principle
B The genetic code
C The mechanism of protein synthesis
D The role of RNAs in inheritance

The correct answer is:
The chemical nature of the transforming principle

Solution:
The experiment of Avery, MacLeod, and McCarty aimed to determine the biochemical nature of the "transforming principle" that was observed in Griffith's experiment.

Topic: Biology, Molecular Basis of Inheritance, NEET
What did the first mammals resemble?

Options:
A Shrews
B Fish
C Birds
D Reptiles

The correct answer is:
Shrews

Solution:
The first mammals were like shrews and their fossils are small sized.

Topic: Biology, Evolution, NEET
What did the formation of life on Earth preceded by?

Options:
A Chemical evolution
B Biological evolution
C Nuclear evolution
D Astrological evolution

The correct answer is:
Chemical evolution

Solution:
Formation of life was preceded by chemical evolution, i.e., formation of diverse organic molecules from inorganic constituents.

Topic: Biology, Evolution, NEET
What did the Periodic Law reveal about the naturally occurring elements?

Options:
A They have no analogies.
B They have analogies with synthetic elements.
C They have analogies with other naturally occurring elements.
D They are all radioactive.

The correct answer is:
They have analogies with other naturally occurring elements.

Solution:
The Periodic Law revealed important analogies among the 94 naturally occurring elements.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What did the pioneering synthesis of acetic acid by Kolbe and methane by Berthelot demonstrate?

Options:
A That organic compounds could not be synthesized from inorganic sources
B That organic compounds could only be synthesized from plants and animals
C That organic compounds could be synthesized from inorganic sources in a laboratory
D That organic compounds were more valuable than inorganic compounds

The correct answer is:
That organic compounds could be synthesized from inorganic sources in a laboratory

Solution:
The pioneering synthesis of acetic acid by Kolbe and methane by Berthelot showed conclusively that organic compounds could be synthesized from inorganic sources in a laboratory.

Topic: Chemistry, General Organic Chemistry, NEET
What did the two enzymes isolated in 19630 in Escherichia coli restrict?

Options:
A Growth of bacteriophage
B Methylation of DNA
C Cutting of DNA
D Both A and B

The correct answer is:
Growth of bacteriophage

Solution:
In the year 19630, the two enzymes responsible for restricting the growth of bacteriophage in Escherichia coli were isolated. One of these added methyl groups to DNA, while the other cut DNA.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What did Watson and Crick immediately propose after proposing the double helical structure of DNA?

Options:
A A replication mechanism for DNA
B A mechanism for the synthesis of proteins
C A hypothesis for the evolution of RNA
D A hypothesis for the evolution of life processes

The correct answer is:
A replication mechanism for DNA

Solution:
Watson and Crick immediately proposed a replication mechanism for DNA after proposing the double helical structure of DNA.

Topic: Biology, Molecular Basis of Inheritance, NEET
What did W.M. Stanley demonstrates about viruses?

Options:
A They can be crystallized
B They are inert outside their specific host cell
C They are obligate parasites
D All of the above

The correct answer is:
All of the above

Solution:
W.M. Stanley showed that viruses could be crystallized and crystals consist largely of proteins. They are inert outside their specific host cell. Viruses are obligate parasites.

Topic: Biology, Biological Classification, NEET
What different criteria are chosen to classify people that you meet often?

Options:
A using their skin tone
B using their names
C using their hair colour
D using their height

The correct answer is:
using their names

Solution:
Names are used as criteria to choose to classify people that you meet often.

Topic: Biology, The Living World, NEET
What direction should the broad end of a wedge be in the 3-D representation?

Options:
A Towards the observer
B Away from the observer
C In the plane of the paper
D In a random direction

The correct answer is:
Towards the observer

Solution:
Wedges are shown in such a way that the broad end of the wedge is towards the observer.

Topic: Chemistry, General Organic Chemistry, NEET
What disappears at the critical temperature of a substance?

Options:
A The substance itself
B The surface separating two phases
C The density of the substance
D The continuity between the gaseous and liquid states

The correct answer is:
The surface separating two phases

Solution:
At the critical temperature, the surface separating two phases disappears.

Topic: Chemistry, States of Matter, NEET
What distinction is made between absorption and adsorption using the example of water vapor?

Options:
A Water vapor is absorbed by both anhydrous calcium chloride and silica gel.
B Water vapor is adsorbed by anhydrous calcium chloride and absorbed by silica gel.
C Water vapor is only adsorbed by both anhydrous calcium chloride and silica gel.
D Water vapor is only absorbed by anhydrous calcium chloride and silica gel.

The correct answer is:
Water vapor is adsorbed by anhydrous calcium chloride and absorbed by silica gel.

Solution:
The paragraph states that water vapors are absorbed by anhydrous calcium chloride and adsorbed by silica gel.

Topic: Chemistry, Surface Chemistry, NEET
What distinguishes a compound leaf from a simple leaf?

Options:
A Presence of multiple midribs
B Absence of a bud in the axil
C Divided lamina
D Undivided lamina

The correct answer is:
Divided lamina

Solution:
A compound leaf is differentiated from a simple leaf because its lamina is divided, with the incisions reaching up to the midrib and breaking it into multiple leaflets.

Topic: Biology, Morphology of Flowering Plants, NEET
What distinguishes a stem from a root?

Options:
A The presence of nodes and internodes
B The ability to conduct water and minerals
C The presence of buds
D The green colour

The correct answer is:
The presence of nodes and internodes

Solution:
Stems have nodes and internodes, which are regions of the stem where leaves are born and the portions between two nodes respectively. This feature distinguishes a stem from a root, which does not have these characteristics.

Topic: Biology, Morphology of Flowering Plants, NEET
What distinguishes common names from systematic names in organic chemistry?

Options:
A Common names are based on the compound's color, while systematic names are based on its structure.
B Common names are derived from Latin or Greek roots, while systematic names are derived from chemical properties.
C Common names are shorter and more practical, while systematic names are lengthy and complicated.
D Common names are used for inorganic compounds, while systematic names are used for organic compounds.

The correct answer is:
Common names are shorter and more practical, while systematic names are lengthy and complicated.

Solution:
Common names are often shorter and more practical, while systematic names can be lengthy and complicated.

Topic: Chemistry, General Organic Chemistry, NEET
What distinguishes copolymerization from homopolymerization?

Options:
A Copolymerization involves the use of only one monomer.
B Copolymerization results in the formation of a single polymer chain.
C Copolymerization involves the use of multiple monomers.
D Copolymerization always produces a thermoplastic polymer.

The correct answer is:
Copolymerization involves the use of multiple monomers.

Solution:
Copolymerization involves the use of multiple monomers, while homopolymerization uses a single monomer.

Topic: Chemistry, Polymers, NEET
What distinguishes cortical nephrons from juxta medullary nephrons?

Options:
A Cortical nephrons are shorter in length
B Juxta medullary nephrons are located in the cortex
C Cortical nephrons lack vasa recta
D Juxta medullary nephrons have a longer loop of Henle

The correct answer is:
Juxta medullary nephrons have a longer loop of Henle

Solution:
Juxta medullary nephrons have a longer loop of Henle, which runs deep into the medulla, whereas the loop of Henle in cortical nephrons is short and extends only a little into the medulla.

Topic: Biology, Excretory Products and their Elimination, NEET
What distinguishes isotopes from one another?

Options:
A Difference in atomic number
B Difference in atomic mass number
C Difference in the number of protons
D Difference in the number of neutrons

The correct answer is:
Difference in the number of neutrons

Solution:
Isotopes differ from one another in terms of the number of neutrons present in the nucleus.

Topic: Chemistry, Structure of Atom, NEET
What distinguishes ligands in coordination compounds from counter ions?

Options:
A Ligands are negatively charged.
B Counter ions are larger in size.
C Ligands are bound to the central atom/ion.
D Counter ions are always simple ions.

The correct answer is:
Ligands are bound to the central atom/ion.

Solution:
Ligands are distinguished from counter ions by being bound to the central atom/ion.

Topic: Chemistry, Coordination Compounds, NEET
What distinguishes non-ideal solutions from ideal solutions regarding their behavior with Raoult's law?

Options:
A Non-ideal solutions exhibit deviations from Raoult's law, while ideal solutions strictly follow Raoult's law.
B Non-ideal solutions have higher vapor pressure, while ideal solutions have lower vapor pressure.
C Non-ideal solutions always have a positive deviation, while ideal solutions have a negative deviation.
D Non-ideal solutions are characterized by zero enthalpy of mixing, while ideal solutions exhibit a high enthalpy of mixing.

The correct answer is:
Non-ideal solutions exhibit deviations from Raoult's law, while ideal solutions strictly follow Raoult's law.

Solution:
Non-ideal solutions exhibit deviations from Raoult's law, which distinguishes them from ideal solutions that strictly follow Raoult's law.

Topic: Chemistry, Solutions, NEET
What distinguishes non-ionic detergents from other types of detergents?

Options:
A They are highly charged
B They are made of stearic acid
C They do not contain any ions
D They are used only in hard water

The correct answer is:
They do not contain any ions

Solution:
Non-ionic detergents do not contain any ion in their constitution.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What distinguishes polymers from monomers?

Options:
A Polymers have lower molecular mass than monomers.
B Polymers are formed from smaller molecules called monomers.
C Polymers are always found in nature, while monomers are synthetic.
D Polymers are transparent, while monomers are opaque.

The correct answer is:
Polymers are formed from smaller molecules called monomers.

Solution:
One of the key distinctions between polymers and monomers is that polymers are formed from smaller molecules called monomers.

Topic: Chemistry, Polymers, NEET
What distinguishes semi-synthetic polymers from fully synthetic polymers?

Options:
A Semi-synthetic polymers are always biodegradable, while fully synthetic polymers are not.
B Semi-synthetic polymers have a higher molecular mass than fully synthetic polymers.
C Semi-synthetic polymers are derived entirely from natural sources, while fully synthetic polymers are entirely man-made.
D Semi-synthetic polymers are partially derived from natural sources and partially synthesized, while fully synthetic polymers are entirely man-made.

The correct answer is:
Semi-synthetic polymers are partially derived from natural sources and partially synthesized, while fully synthetic polymers are entirely man-made.

Solution:
The key distinction is that semi-synthetic polymers are partially derived from natural sources and partially synthesized, while fully synthetic polymers are entirely man-made.

Topic: Chemistry, Polymers, NEET
What distinguishes small ligands from large ligands in coordination compounds?

Options:
A Small ligands have a higher charge.
B Small ligands are simple ions.
C Large ligands are highly reactive.
D Large ligands are macromolecules.

The correct answer is:
Small ligands are simple ions.

Solution:
Small ligands are typically simple ions, while large ligands can be macromolecules.

Topic: Chemistry, Coordination Compounds, NEET
What distinguishes soaps and synthetic detergents as surface active agents?

Options:
A Hydrophobic nature
B Ability to form micelles
C Lyophilic parts
D Presence of metal ions

The correct answer is:
Ability to form micelles

Solution:
Soaps and synthetic detergents, as surface active agents, have the ability to form micelles.

Topic: Chemistry, Surface Chemistry, NEET
What distinguishes solvate isomers from each other?

Options:
A The oxidation state of the central metal
B The type of ligands involved
C The presence or absence of directly bonded solvent molecules
D The spatial arrangement of ligands

The correct answer is:
The presence or absence of directly bonded solvent molecules

Solution:
Solvate isomers differ in whether solvent molecules are directly bonded to the metal ionor simply present as free solvent molecules in the crystal lattice.

Topic: Chemistry, Coordination Compounds, NEET
What distinguishes the ammonium ion (NH4+) from most cations in ionic compounds?

Options:
A It is composed of metallic elements.
B It is composed of non-metallic elements.
C It forms anions instead of cations.
D It is a noble gas.

The correct answer is:
It is composed of non-metallic elements.

Solution:
The ammonium ion (NH4+) is different from most cations in ionic compounds because it is composed of non-metallic elements.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What distinguishes the conjugate bases of weak acids from the conjugate bases of strong acids?

Options:
A The conjugate bases of weak acids are weaker.
B The conjugate bases of weak acids are stronger.
C The conjugate bases of weak acids are neutral.
D The conjugate bases of weak acids have the same strength.

The correct answer is:
The conjugate bases of weak acids are stronger.

Solution:
The text distinguishes the conjugate bases of weak acids as being stronger than the conjugate bases of strong acids.

Topic: Chemistry, Ionic Equilibrium, NEET
What distinguishes the physical properties of alkenes from alkanes, aside from solubility in water?

Options:
A Odor
B Color
C Melting point
D Boiling point

The correct answer is:
Odor

Solution:
Alkenes are odorless, except for ethene, which has a faint sweet smell, while alkanes generally lack odor.

Topic: Chemistry, Hydrocarbons, NEET
What distinguishes the surface of a solid in terms of molecular behavior?

Options:
A Uniformity
B Repulsion
C Attraction and retention
D Lack of interaction

The correct answer is:
Attraction and retention

Solution:
The paragraph specifies that the surface of a solid has the tendency to attract and retain molecules.

Topic: Chemistry, Surface Chemistry, NEET
What distinguishes unsaturated hydrocarbons from saturated hydrocarbons?

Options:
A Saturated hydrocarbons contain at least one carbon-carbon double or triple bond.
B Unsaturated hydrocarbons contain only carbon-carbon single bonds.
C Saturated hydrocarbons are derived from Latin or Greek roots.
D Unsaturated hydrocarbons are highly reactive.

The correct answer is:
Saturated hydrocarbons contain at least one carbon-carbon double or triple bond.

Solution:
Unsaturated hydrocarbons are distinguished by the presence of at least one carbon-carbon double or triple bond.

Topic: Chemistry, General Organic Chemistry, NEET
What divides the cerebrum into two halves?

Options:
A Corpus Callosum
B Thalamus
C Hypothalamus
D Deep Cleft

The correct answer is:
Deep Cleft

Solution:
A deep cleft divides the cerebrum longitudinally into two halves, which are called the left and right cerebral hemispheres.

Topic: Biology, Neural Control and Coordination, NEET
What do 'a' and 'b' represent in the following population growth curve?

Options:
A 'a' represents exponential growth when responses are not limiting the growth; and 'b' represents logistic growth when responses are limiting the growth.
B 'a' represents logistic growth when responses are not limiting the growth; 'b' represents exponential growth when responses are limiting the growth.
C 'a' represents carrying capacity and 'b' shows logistic growth when responses are limiting the growth.
D 'a' represents exponential growth when responses are not limiting the growth and 'b' shows carrying capacity.

The correct answer is:
'a' represents exponential growth when responses are not limiting the growth; and 'b' represents logistic growth when responses are limiting the growth.

Solution:
The given graph represents the population growth curve where 'a' represents exponential growth when responses are not limiting the growth which forms a $J$-shaped curve and 'b' represents logistic growth when responses are limiting the growth which forms an S-shaped curve.

Topic: Biology, Organisms and Populations, NEET, NEET 2024 (Re-NEET)
What do acids do to blue litmus paper?

Options:
A Turn it into red
B Turn it into blue
C Turn it into green
D Have no effect on litmus paper

The correct answer is:
Turn it into red

Solution:
The paragraph states that acids are known to turn blue litmus paper into red.

Topic: Chemistry, Ionic Equilibrium, NEET
What do acids liberate when they react with some metals?

Options:
A Oxygen
B Dihydrogen
C Carbon dioxide
D Chlorine gas

The correct answer is:
Dihydrogen

Solution:
The paragraph mentions that acids liberate dihydrogen when they react with some metals.

Topic: Chemistry, Ionic Equilibrium, NEET
What do all the categories constitute in taxonomy?

Options:
A Taxonomic hierarchy
B Taxonomic categories or taxa
C Taxonomic classifications
D Taxonomic systems

The correct answer is:
Taxonomic hierarchy

Solution:
All the categories constitute a taxonomic hierarchy, which is a system of classification that is universally evolved under international codes.

Topic: Biology, The Living World, NEET
What do amorphous boron and aluminum metal form when heated in air?

Options:
A B2O3 and Al2O3, respectively
B B3O4 and AlO2, respectively
C B(OH)3 and Al(OH)3, respectively
D BCl3 and AlCl3, respectively

The correct answer is:
B2O3 and Al2O3, respectively

Solution:
Amorphous boron and aluminium metal on heating in air form B2O3 and Al2O3, respectively.

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
What do antiseptics do?

Options:
A Relieve pain
B Kill or arrest the growth of microorganisms
C Reduce inflammation
D Treat fungal infections

The correct answer is:
Kill or arrest the growth of microorganisms

Solution:
Antiseptics kill or arrest the growth of microorganisms.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What do atomic orbitals combine to form in the concept of hybridisation?

Options:
A New elements
B New molecules
C New set of equivalent orbitals
D New chemical bonds

The correct answer is:
New set of equivalent orbitals

Solution:
Atomic orbitals combine to form a new set of equivalent orbitals in the concept of hybridisation.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What do atoms achieve when they form a stable octet of electrons, according to Lewis?

Options:
A Increased reactivity
B Decreased stability
C A particularly stable electronic arrangement
D A chaotic arrangement

The correct answer is:
A particularly stable electronic arrangement

Solution:
Lewis postulates that when atoms achieve a stable octet of electrons, they have a particularly stable electronic arrangement.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What do bases feel like?

Options:
A Dry
B Slippery or soapy
C Sticky
D Rough

The correct answer is:
Slippery or soapy

Solution:
The paragraph states that bases feel slippery or soapy.

Topic: Chemistry, Ionic Equilibrium, NEET
What do birth control pills contain?

Options:
A Antibiotics
B Synthetic estrogen and progesterone derivatives
C Natural hormones
D Vitamins and minerals

The correct answer is:
Synthetic estrogen and progesterone derivatives

Solution:
Birth control pills essentially contain a mixture of synthetic estrogen and progesterone derivatives.

Topic: Chemistry, Chemistry in Everyday Life, NEET