datavorous/entrance-exam-dataset huggingface dataset:
What do you mean by significant figures?

Options:
A Significant figures refer to the important digits in a measurement that contribute to its precision and accuracy.
B Significant figures are symbols used in mathematical equations to denote multiplication and division operations.
C Significant figures represent the total number of digits in a numerical value.
D Significant figures are units of measurement used in the metric system to quantify length and distance.

The correct answer is:
Significant figures refer to the important digits in a measurement that contribute to its precision and accuracy.

Solution:
Correct Option is : (A)
Significant figures refer to the important digits in a measurement that contribute to its precision and accuracy.

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET
What do you mean by Unsymmetrical ether?

Options:
A An unsymmetrical ether is an ether in which both the alkyl or aryl groups attached to the oxygen atom are identical.
B An unsymmetrical ether is an ether that has a chiral center in its structure.
C An unsymmetrical ether is an ether that exhibits geometric isomerism due to the presence of multiple double bonds.
D An unsymmetrical ether is an ether where two groups on the two sides of an oxygen atom differ (i.e., have an unequal number of carbon atoms).

The correct answer is:
An unsymmetrical ether is an ether where two groups on the two sides of an oxygen atom differ (i.e., have an unequal number of carbon atoms).

Solution:
Correct Option is : (D)
An unsymmetrical ether is an ether where two groups on the two sides of an oxygen atom differ (i.e., have an unequal number of carbon atoms).

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
What do you mean by Williamson ether synthesis?

Options:
A Williamson ether synthesis is a method to prepare symmetrical and unsymmetrical ethers by allowing alkyl halides to react with sodium alkoxides.This reaction involves SN2 attack of the alkoxide ion on the alkyl halide. Better results are obtained in case of primary alkyl halides.
B Williamson ether synthesis is a reaction for the conversion of alcohols into alkyl halides.
C Williamson ether synthesis is a method for converting alkenes into alcohols through hydrolysis.
D Williamson ether synthesis is a reaction that converts ethers into alcohols using a strong reducing agent.

The correct answer is:
Williamson ether synthesis is a method to prepare symmetrical and unsymmetrical ethers by allowing alkyl halides to react with sodium alkoxides.This reaction involves SN2 attack of the alkoxide ion on the alkyl halide. Better results are obtained in case of primary alkyl halides.

Solution:
Correct Option is : (A)
Williamson ether synthesis is a method to prepare symmetrical and unsymmetrical ethers by allowing alkyl halides to react with sodium alkoxides.This reaction involves SN2 attack of the alkoxide ion on the alkyl halide. Better results are obtained in case of primary alkyl halides.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
What do you understand by activation of adsorbent? How is it achieved?

Options:
A Activation of adsorbent refers to the deactivation of adsorbent surfaces. It is achieved by increasing temperature.
B Activation of adsorbent refers to the process of enhancing the adsorption capacity of adsorbent surfaces. It is achieved by various methods like heating, chemical treatment, or reducing particle size.
C Activation of adsorbent refers to the formation of chemical bonds between adsorbate and adsorbent. It is achieved by cooling.
D Activation of adsorbent refers to increasing the pressure on adsorbent surfaces. It is achieved by mechanical compression.

The correct answer is:
Activation of adsorbent refers to the process of enhancing the adsorption capacity of adsorbent surfaces. It is achieved by various methods like heating, chemical treatment, or reducing particle size.

Solution:
Correct Option is : (B)
Activation of adsorbent refers to the process of enhancing the adsorption capacity of adsorbent surfaces. It is achieved by various methods like heating, chemical treatment, or reducing particle size.

Topic: Chemistry, Surface Chemistry, NEET
What do you understand by bond pairs and lone pairs of electrons?

Options:
A Bond pairs are pairs of electrons shared between two atoms in a covalent bond, while lone pairs are unshared pairs of electrons on an atom.
B Bond pairs are pairs of electrons on a single atom, while lone pairs are pairs of electrons shared between two atoms in a covalent bond.
C Bond pairs and lone pairs both refer to pairs of electrons shared between two atoms in a covalent bond.
D Bond pairs and lone pairs are terms used interchangeably to describe pairs of electrons shared between two atoms in a covalent bond.

The correct answer is:
Bond pairs are pairs of electrons shared between two atoms in a covalent bond, while lone pairs are unshared pairs of electrons on an atom.

Solution:
Correct Option is : (A)
Bond pairs are pairs of electrons shared between two atoms in a covalent bond, while lone pairs are unshared pairs of electrons on an atom.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What do you understand by exothermic reaction and endothermic reaction? Give one example of each type. a) Exothermic Reaction: A process that releases energy to its surroundings. Example: Combustion of propane. b) Endothermic Reaction: A process that absorbs energy from its surroundings. Example: Dissolution of ammonium chloride in water. c) Exothermic Reaction: A process that absorbs energy from its surroundings. Example: Photosynthesis. d) Endothermic Reaction: A process that releases energy to its surroundings. Example: Freezing of water.

Options:
A a and b
B a and d
C c and d
D c and b

The correct answer is:
a and b

Solution:
Correct Option is : (A)
a and b

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What do you understand by: Inert pair effect , Allotropy, Catenation?

Options:
A The tendency of certain elements to preferentially lose s electrons rather than p electrons.
B The property of some chemical elements to exist in two or more different forms.
C The ability of an element to bond with itself through covalent bonds to form chains or rings.
D All of the above

The correct answer is:
All of the above

Solution:
Correct Option is : (D)
All of the above

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
What do you understand by isoelectronic species?

Options:
A Isoelectronic species have the same atomic number but different numbers of protons.
B Isoelectronic species have different atomic numbers but the same number of electrons.
C Isoelectronic species have the same atomic number and the same number of neutrons.
D Isoelectronic species have the same atomic number but different numbers of electrons.

The correct answer is:
Isoelectronic species have different atomic numbers but the same number of electrons.

Solution:
Correct Option is : (B)
Isoelectronic species have different atomic numbers but the same number of electrons.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What do you understand by shape-selective catalysis? Why are zeolites good shape-selective catalysts?

Options:
A Shape-selective catalysis involves using catalysts with specific geometries to control reaction pathways. Zeolites have well-defined pores and channels.
B Shape-selective catalysis involves using catalysts with random structures to control reaction pathways. Zeolites have irregular shapes.
C Shape-selective catalysis involves using catalysts with variable geometries to control reaction pathways. Zeolites have amorphous structures.
D Shape-selective catalysis involves using catalysts with no defined geometry to control reaction pathways. Zeolites have irregular pores.

The correct answer is:
Shape-selective catalysis involves using catalysts with specific geometries to control reaction pathways. Zeolites have well-defined pores and channels.

Solution:
Correct Option is : (A)
Shape-selective catalysis involves using catalysts with specific geometries to control reaction pathways. Zeolites have well-defined pores and channels.

Topic: Chemistry, Surface Chemistry, NEET
What do you understand by the term ‘auto protolysis of water’? What is its significance?

Options:
A Auto protolysis of water is the decomposition of water into hydrogen and oxygen in the presence of sunlight. It is significant for photosynthesis in plants.
B Auto protolysis of water is the self-ionization of water into H+and OH-ions. It contributes to the pH of a solution and plays a role in acid-base chemistry.
C Auto protolysis of water is the reaction of water with a strong acid. It is significant in the production of hydronium ions.
D Auto protolysis of water is the conversion of water into steam. It is significant in power generation.

The correct answer is:
Auto protolysis of water is the self-ionization of water into H+and OH-ions. It contributes to the pH of a solution and plays a role in acid-base chemistry.

Solution:
Correct Option is : (B)
Auto protolysis of water is the self-ionization of water into H+and OH-ions. It contributes to the pH of a solution and plays a role in acid-base chemistry.

Topic: Chemistry, Hydrogen, NEET
What do you understand by the term ’auto-protolysis’ of water and What is its significance?

Options:
A Auto-protolysis of water refers to the decomposition of water into hydrogen and oxygen gas when exposed to sunlight.
B Auto-protolysis of water is the reaction of water with acids to form hydronium ions (H3O+) and hydroxide ions (OH-).
C Auto-protolysis of water involves the self-ionization of water molecules into hydronium ions (H3O+) and hydroxide ions (OH-) without the presence of other substances ,this proves the amphoteric nature of water
D Auto-protolysis of water is a chemical reaction that occurs when water reacts with metals to form metal hydroxides.

The correct answer is:
Auto-protolysis of water involves the self-ionization of water molecules into hydronium ions (H3O+) and hydroxide ions (OH-) without the presence of other substances ,this proves the amphoteric nature of water

Solution:
Correct Option is : (C)
Auto-protolysis of water involves the self-ionization of water molecules into hydronium ions (H3O+) and hydroxide ions (OH-) without the presence of other substances ,this proves the amphoteric nature of water

Topic: Chemistry, Hydrogen, NEET
What do you understand by the term fuel-cell?

Options:
A A fuel cell is a device that converts mechanical energy into electrical energy.
B A fuel cell is a container used to store and transport fuel.
C A fuel cell is an electrochemical device that converts the chemical energy of a fuel (typically hydrogen) and an oxidizing agent (usually oxygen) into electrical energy through a chemical reaction.
D A fuel cell is a type of internal combustion engine used in automobiles.

The correct answer is:
A fuel cell is an electrochemical device that converts the chemical energy of a fuel (typically hydrogen) and an oxidizing agent (usually oxygen) into electrical energy through a chemical reaction.

Solution:
Correct Option is : (C)
A fuel cell is an electrochemical device that converts the chemical energy of a fuel (typically hydrogen) and an oxidizing agent (usually oxygen) into electrical energy through a chemical reaction.

Topic: Chemistry, Hydrogen, NEET
What do you understand by the term glycosidic linkage?

Options:
A Glycosidic linkage refers to the connection between nucleotide bases in DNA.
B Glycosidic linkage is the bond that forms between two amino acids in a protein chain.
C Glycosidic linkage refers to the linkage formed between two monosaccharide units through an oxygen atom by the loss of a water molecule.
D Glycosidic linkage is the electrostatic attraction between charged ions in a salt.

The correct answer is:
Glycosidic linkage refers to the linkage formed between two monosaccharide units through an oxygen atom by the loss of a water molecule.

Solution:
Correct Option is : (C)
Glycosidic linkage refers to the linkage formed between two monosaccharide units through an oxygen atom by the loss of a water molecule.

Topic: Chemistry, Biomolecules, NEET
What do you understand by the term hydrogen economy?

Options:
A The hydrogen economy refers to the use of hydrogen as the primary currency for financial transactions in a given region.
B The hydrogen economy is a technique of using dihydrogen in an efficient way which involves the transportation and storage of dihydrogen in the form of liquid or gas.
C The hydrogen economy represents an economic model that prioritizes the use of hydrogen fuel cells for electricity generation.
D The hydrogen economy is an economic concept that emphasizes the importance of hydrogen gas as a commodity in international trade.

The correct answer is:
The hydrogen economy is a technique of using dihydrogen in an efficient way which involves the transportation and storage of dihydrogen in the form of liquid or gas.

Solution:
Correct Option is : (B)
The hydrogen economy is a technique of using dihydrogen in an efficient way which involves the transportation and storage of dihydrogen in the form of liquid or gas.

Topic: Chemistry, Hydrogen, NEET
What do you understand by the term hydrogenation?

Options:
A Hydrogenation is the process of converting hydrogen gas into a liquid or solid state.
B Hydrogenation is a chemical reaction in which hydrogen gas is added to a compound, typically an unsaturated organic compound, to saturate its carbon-carbon double bonds.
C Hydrogenation refers to the combustion of hydrogen gas to produce heat and energy.
D Hydrogenation is the process of extracting hydrogen gas from a compound.

The correct answer is:
Hydrogenation is a chemical reaction in which hydrogen gas is added to a compound, typically an unsaturated organic compound, to saturate its carbon-carbon double bonds.

Solution:
Correct Option is : (B)
Hydrogenation is a chemical reaction in which hydrogen gas is added to a compound, typically an unsaturated organic compound, to saturate its carbon-carbon double bonds.

Topic: Chemistry, Hydrogen, NEET
What do you understand by the term ‘syngas’?

Options:
A Syngas refers to a gas mixture produced by the combustion of natural gas.
B Syngas is a gas formed during volcanic eruptions, consisting of sulfur compounds.
C Syngas is a synthetic gas mixture primarily composed of carbon monoxide (CO) and hydrogen (H2) and is often used as a fuel or precursor for various chemical processes.
D Syngas is a gas produced from decomposing organic matter in landfills.

The correct answer is:
Syngas is a synthetic gas mixture primarily composed of carbon monoxide (CO) and hydrogen (H2) and is often used as a fuel or precursor for various chemical processes.

Solution:
Correct Option is : (C)
Syngas is a synthetic gas mixture primarily composed of carbon monoxide (CO) and hydrogen (H2) and is often used as a fuel or precursor for various chemical processes.

Topic: Chemistry, Hydrogen, NEET
What do you understand by the term water-gas shift reaction?

Options:
A The water-gas shift reaction is a chemical process in which water is converted into hydrogen and oxygen gas.
B It is a reaction that occurs in water treatment plants to improve water quality.
C The water-gas shift reaction is a process in which carbon monoxide and water vapour react to produce carbon dioxide and hydrogen gas.
D It is a term used in meteorology to describe the movement of water vapour in the atmosphere.

The correct answer is:
The water-gas shift reaction is a process in which carbon monoxide and water vapour react to produce carbon dioxide and hydrogen gas.

Solution:
Correct Option is : (C)
The water-gas shift reaction is a process in which carbon monoxide and water vapour react to produce carbon dioxide and hydrogen gas.

Topic: Chemistry, Hydrogen, NEET
What does 1,2 and 3 represent in the following image?

Options:
A Infection, blending, centrifugation
B centrifugation, blending, infection
C infection, centrifugation, blending
D blending, infection, centrifugation

The correct answer is:
Infection, blending, centrifugation

Solution:
In the above image, 1,2 and 3 represent infection, blending and centrifugation

Topic: Biology, Molecular Basis of Inheritance, NEET
What does A and B represent in the following figure?

Options:
A Thymine, Cytosine
B Uracil, Guanine
C Cytosine, Thymine
D Thymine, Uracil

The correct answer is:
Thymine, Cytosine

Solution:
In the above figure, A represents Thymine while B represents Cytosine

Topic: Biology, Molecular Basis of Inheritance, NEET
What does A and B represent in the given figure?

Options:
A placental mammals, Australian marsupials
B Australian marsupials, placental mammals
C placental mammals, mammals
D wild animals, domestic animals

The correct answer is:
placental mammals, Australian marsupials

Solution:
In the above figure, A and B represents placental mammals and Australian marsupials

Topic: Biology, Evolution, NEET
What does A, B and C in the given figure represent?

Options:
A Replication, Translation, Transcription
B Replication, Transcription, Translation
C Transcription, Translation, Replication
D Translation, Replication, Transcription

The correct answer is:
Replication, Transcription, Translation

Solution:
In the above figure, A, B and C represents Replication, Transcription and translation.

Topic: Biology, Molecular Basis of Inheritance, NEET
What does A, B and C represent here respectively.

Options:
A (a)Acoelomate, (b)Coelomate, (c)Pseudocoelomate
B (a)Acoelomate, (b)Pseudocoelomate, (c)Coelomate
C (a)Coelomate, (b)Pseudocoelomate, (c)Acoelomate
D None of the above

The correct answer is:
(a)Coelomate, (b)Pseudocoelomate, (c)Acoelomate

Solution:
The figure shows A, B, C as Coelomate, Pseudocoelomate, Acoelomate respectively.

Topic: Biology, Animal Kingdom, NEET
What does A, B and C represent here respectively?

Options:
A (a)sycon, (b)spongilla, (c)euspongia
B (a)sycon, (b)euspongia, (c)spongilla
C (a)euspongia, (b)sycon, (c)spongilla
D none of the above

The correct answer is:
(a)sycon, (b)euspongia, (c)spongilla

Solution:
This figure shows A,B,C as respectively as sycon,euspongia,spongilla.

Topic: Biology, Animal Kingdom, NEET
What does A, B and C represents in the given figure?

Options:
A DNA, H1 histone, Histone octamer
B H1 histone, DNA, Histone octamer
C Histone octamer, DNA, H1 histone
D DNA, Histone octamer, H1 histone

The correct answer is:
DNA, H1 histone, Histone octamer

Solution:
In the above figure, A, B and C represents DNA, H1 histone and Histone octamer respectively

Topic: Biology, Molecular Basis of Inheritance, NEET
What does A, B, C and D in the following figure represents?

Options:
A Continuous synthesis, Newly synthesised strands, Discontinuous synthesis, Template DNA
B Template DNA, Discontinuous synthesis, Newly synthesised strands, Continuous synthesis
C Newly synthesised strands, Continuous synthesis, Discontinuous synthesis, Template DNA
D Template DNA, Discontinuous synthesis, Continuous synthesis, Newly synthesised strands

The correct answer is:
Continuous synthesis, Newly synthesised strands, Discontinuous synthesis, Template DNA

Solution:
In the above figure, A, B, C,D is represented as Continuous synthesis, Newly synthesised strands, Discontinuous synthesis, Template DNA respectively

Topic: Biology, Molecular Basis of Inheritance, NEET
What does A, B, C and D represent in the given figure?

Options:
A Sigma factor, RNA polymerase, Rho factor, RNA polymerase
B RNA polymerase, Sigma factor, RNA polymerase, Rho factor
C RNA polymerase, Rho factor, RNA polymerase, Sigma factor
D None of the above

The correct answer is:
RNA polymerase, Sigma factor, RNA polymerase, Rho factor

Solution:
In the above figure, A, B, C and D is represented by RNA polymerase, Sigma factor, RNA polymerase, Rho factor respectively

Topic: Biology, Molecular Basis of Inheritance, NEET
What does a catalyst do to the activation energy of a chemical reaction?

Options:
A Increases it for the forward reaction and decreases it for the reverse reaction.
B Decreases it for the forward reaction and increases it for the reverse reaction.
C Increases it for both the forward and reverse reactions.
D Decreases it for both the forward and reverse reactions.

The correct answer is:
Decreases it for both the forward and reverse reactions.

Solution:
A catalyst lowers the activation energy for the forward and reverse reactions by exactly the same amount.

Topic: Chemistry, Chemical Equilibrium, NEET
What does a coordination entity consist of?

Options:
A Only a central metal atom
B Only ions
C A central metal atom or ion bonded to a fixed number of ions or molecules
D Only molecules

The correct answer is:
A central metal atom or ion bonded to a fixed number of ions or molecules

Solution:
A coordination entity consists of a central metal atom or ion bonded to a fixed number of ions or molecules.

Topic: Chemistry, Coordination Compounds, NEET
What does a coordination number of 8 indicate in a complex?

Options:
A The metal ion is octahedral
B The metal ion is tetrahedral
C The metal ion is square planar
D The metal ion is linear

The correct answer is:
The metal ion is octahedral

Solution:
A coordination number of 8 in a complex indicates that the metal ion is arranged in an octahedral geometry.

Topic: Chemistry, Coordination Compounds, NEET
What does a cross:section of earth's crust indicate?

Options:
A The arrangement of sediments one over the other
B The age of the rocks
C The types of fossils found in the rocks
D The mineral composition of the rocks

The correct answer is:
The arrangement of sediments one over the other

Solution:
A cross:section of earth's crust indicates the arrangement of sediments one over the other during the long history of earth.

Topic: Biology, Evolution, NEET
What does a crystal lattice represent in a crystal structure?

Options:
A The abstract scaffolding
B The motif
C The pattern of points
D The structural unit

The correct answer is:
The pattern of points

Solution:
A crystal lattice represents the pattern of points in a crystal structure, as stated in the paragraph.

Topic: Chemistry, Solid State, NEET
What does a large negative value of electron gain enthalpy suggest about an element?

Options:
A It has a small atomic radius.
B It has a high effective nuclear charge.
C It readily accepts an additional electron.
D It is a noble gas.

The correct answer is:
It readily accepts an additional electron.

Solution:
A large negative value of electron gain enthalpy suggests that an element readily accepts an additional electron.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What does a molecular formula show in a compound?

Options:
A The molecular weight of the compound
B The simplest whole number ratio of atoms
C The exact number of different types of atoms
D The chemical properties of the compound

The correct answer is:
The exact number of different types of atoms

Solution:
A molecular formula shows the exact number of different types of atoms present in a molecule of a compound.

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET
What does a negative bond order (Nb < Na) indicate about a molecule's stability?

Options:
A The molecule is stable.
B The molecule is unstable.
C The molecule's stability cannot be determined.
D The molecule has no electrons.

The correct answer is:
The molecule is unstable.

Solution:
A negative bond order (Nb < Na) implies an unstable molecule.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What does a negative Eo value for a redox couple indicate?

Options:
A The redox couple is a stronger reducing agent than the H+/ H2 couple.
B The redox couple is a weaker reducing agent than the H+ / H2 couple.
C The redox couple is in equilibrium with the H+ / H2 couple.
D The redox couple does not participate in electron transfer reactions.

The correct answer is:
The redox couple is a stronger reducing agent than the H+/ H2 couple.

Solution:
A negative Eo value indicates that the redox couple is a stronger reducing agent than the H+ / H2 couple.

Topic: Chemistry, Electrochemistry, NEET