datavorous/entrance-exam-dataset huggingface dataset:
What is the basic difference in approach between Mendeleev's Periodic Law and the Modern Periodic Law?

Options:
A Mendeleev's law is based on atomic number, while the Modern Periodic Law is based on atomic mass.
B Mendeleev's law emphasises the periodicity of properties, while the Modern Periodic Law emphasises the arrangement of elements based on electronic configuration.
C Mendeleev's law includes all known elements, while the Modern Periodic Law excludes elements beyond a certain atomic number.
D Mendeleev’s Periodic Law states that the physical and chemical properties of elements are periodic functions of their atomic weights. On the other hand, the Modern Periodic Law states that the physical and chemical properties of elements are periodic functions of their atomic numbers.

The correct answer is:
Mendeleev’s Periodic Law states that the physical and chemical properties of elements are periodic functions of their atomic weights. On the other hand, the Modern Periodic Law states that the physical and chemical properties of elements are periodic functions of their atomic numbers.

Solution:
Correct Option is : (D)
Mendeleev’s Periodic Law states that the physical and chemical properties of elements are periodic functions of their atomic weights. On the other hand, the Modern Periodic Law states that the physical and chemical properties of elements are periodic functions of their atomic numbers.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What is the basic requirement for taxonomic classification?

Options:
A Knowledge of the environment of an individual or group of organisms
B Knowledge of the behavior of an individual or group of organisms
C Knowledge of the characters of an individual or group of organisms
D Knowledge of the genetic makeup of an individual or group of organisms

The correct answer is:
Knowledge of the characters of an individual or group of organisms

Solution:
The basic requirement for taxonomic classification is the knowledge of characters of an individual or group of organisms, which helps in identifying similarities and dissimilarities among the individuals of the same kind of organisms as well as of other kinds of organisms.

Topic: Biology, The Living World, NEET
What is the basic shape of a bacillus bacteria?

Options:
A Spherical
B Rod-like
C Comma-shaped
D Spiral

The correct answer is:
Rod-like

Solution:
The basic shape of a bacillus bacteria is rod-like, as described in the provided text.

Topic: Biology, Cell - The Unit of Life, NEET
What is the basic structural difference between starch and cellulose?

Options:
A Starch consists of linear chains of glucose molecules, while cellulose has a branched structure.
B Starch is a C1-C4linkage of α glucose monomers and Cellulose is formed by C1-C4linkage of β glucose monomers.
C Starch has a helical structure, while cellulose forms a straight chain.
D Starch is found in plant cell walls, while cellulose serves as an energy storage molecule.

The correct answer is:
Starch is a C1-C4linkage of α glucose monomers and Cellulose is formed by C1-C4linkage of β glucose monomers.

Solution:
Correct Option is : (B)
Starch is a C1-C4linkage of α glucose monomers and Cellulose is formed by C1-C4linkage of β glucose monomers.

Topic: Chemistry, Biomolecules, NEET
What is the basic structural unit of silicates?

Options:
A SiO2
B SiCl4
C SiF4
D SiO44–

The correct answer is:
SiO44–

Solution:
The basic structural unit of silicates is SiO44–.

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
What is the basic theme of organisation in the modern periodic table?

Options:
A Atomic mass
B Atomic number
C Density
D Metallic character

The correct answer is:
Atomic number

Solution:
Correct Option is : (B)
Atomic number

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What is the basicity of H3PO4?

Options:
A Monobasic
B Dibasic
C Tribasic
D Tetrabasic

The correct answer is:
Dibasic

Solution:
Correct Option is : (B)
Dibasic

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
What is the basis for animal classification?

Options:
A Differences in structure and form
B Arrangement of cells
C Body symmetry
D All of the above

The correct answer is:
All of the above

Solution:
Differences in structure, body, symmetry and arrangement of cells, form the basis for animal classification.

Topic: Biology, Animal Kingdom, NEET
What is the basis for crystallization in the purification process?

Options:
A The difference in melting points
B The difference in boiling points
C The difference in solubilities between the compound and impurities
D The difference in densities

The correct answer is:
The difference in solubilities between the compound and impurities

Solution:
Crystallization is based on the difference in solubilities between the compound and impurities in a suitable solvent.

Topic: Chemistry, General Organic Chemistry, NEET
What is the basis for the industrial process in which impure copper is converted into copper of high purity?

Options:
A Electrochemical reduction of Cu2+ ions
B Electrochemical reduction of Cu(s)
C Electrochemical oxidation of Cu2+ ions
D Electrochemical oxidation of Cu(s)

The correct answer is:
Electrochemical oxidation of Cu(s)

Solution:
The industrial process for converting impure copper into copper of high purity is based on the electrochemical oxidation of Cu(s) at the anode.

Topic: Chemistry, Electrochemistry, NEET
What is the basis for the separation of compounds in chromatography?

Options:
A Their color
B Their physical state (solid or liquid)
C Their molecular weight
D Their differential behavior in the stationary and mobile phases

The correct answer is:
Their differential behavior in the stationary and mobile phases

Solution:
The separation of compounds in chromatography is based on their differential behavior in the stationary and mobile phases.

Topic: Chemistry, General Organic Chemistry, NEET
What is the basis for the systematic nomenclature recommended by the IUPAC for new elements?

Options:
A The discoverer's name.
B The element's appearance.
C The atomic number of the element.
D The element's weight.

The correct answer is:
The atomic number of the element.

Solution:
A systematic nomenclature be derived directly from the atomic number of the element using the numerical roots for 0 and numbers 1-9.The roots are put together in order of digits which make up the atomic number and “ium” is added at the end. Like for a element with atomic number 112, its name will be Ununbium.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What is the basis for understanding the basic character of amines in terms of Kb and pKb values?

Options:
A pKb values indicate the color of amines.
B pKb values indicate the strength of the base.
C pKb values indicate the molar mass of amines.
D pKb values indicate the boiling points of amines.

The correct answer is:
pKb values indicate the strength of the base.

Solution:
Larger pKb values indicate stronger bases and the pKb values of amines can help determine their basicity.

Topic: Chemistry, Amines, NEET
What is the basis of adsorption chromatography?

Options:
A Differential adsorption of compounds on an adsorbent
B Mixing of compounds with a mobile phase
C Heating of compounds to their boiling points
D Sublimation of compounds

The correct answer is:
Differential adsorption of compounds on an adsorbent

Solution:
Adsorption chromatography is based on the differential adsorption of compounds on an adsorbent.

Topic: Chemistry, General Organic Chemistry, NEET
What is the basis of Bohr's model for the hydrogen atom?

Options:
A The electron can move in any random path around the nucleus.
B The electron's energy changes continuously as it orbits the nucleus.
C The electron moves in a circular path of fixed radius and energy.
D The energy of an electron in the orbit depends on its speed.

The correct answer is:
The electron moves in a circular path of fixed radius and energy.

Solution:
Bohr's postulate states, "The electron in the hydrogen atom can move around the nucleus in a circular path of fixed radius and energy."

Topic: Chemistry, Structure of Atom, NEET
What is the basis of DNA fingerprinting?

Options:
A Genetic mapping of the human genome
B Polymorphism in DNA sequence
C Mutations in somatic cells
D Mutations in germ cells

The correct answer is:
Polymorphism in DNA sequence

Solution:
Polymorphism in DNA sequence, which arises due to mutations, is the basis of DNA fingerprinting.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the basis of DNA fingerprinting?

Options:
A Polymorphism of repetitive DNA sequences
B Gene expression
C Chromosome structure
D Protein composition

The correct answer is:
Polymorphism of repetitive DNA sequences

Solution:
Polymorphism of repetitive DNA sequences forms the basis of DNA fingerprinting, as these sequences show high levels of variation between individuals.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the basis of getting selected and evolving according to Darwin's theory?

Options:
A Adaptive ability
B Inheritance of acquired characteristics
C Fitness
D Genetic basis

The correct answer is:
Genetic basis

Solution:
There must be a genetic basis for getting selected and to evolve according to Darwin's theory. Fitness is the end result of the ability to adapt and get selected by nature.

Topic: Biology, Evolution, NEET
What is the basis of heredity?

Options:
A The process by which characters are passed on from parent to progeny
B The study of variation in plants
C The study of variation in animals
D The study of variation in humans

The correct answer is:
The process by which characters are passed on from parent to progeny

Solution:
The process by which characters are passed on from parent to progeny is the basis of heredity.

Topic: Biology, Principles of Inheritance and Variation, NEET
What is the basis of hydraulic washing for separating ore and gangue particles?

Options:
A Color differences
B Specific gravity differences
C Magnetic properties
D Chemical composition

The correct answer is:
Specific gravity differences

Solution:
Hydraulic washing relies on the difference in specific gravities of ore and gangue particles for separation.

Topic: Chemistry, General Principles and Processes of Isolation of Metals, NEET
What is the basis of Mendel's Law of Independent Assortment?

Options:
A Segregation of one pair of genes is independent of the other pair of genes
B Alleles of a gene pair segregate during gamete formation
C Genes located on the same chromosome are usually inherited together
D Dominant traits always mask recessive traits

The correct answer is:
Segregation of one pair of genes is independent of the other pair of genes

Solution:
Mendel's Law of Independent Assortment is based on the observation that the segregation of one pair of genes is independent of the other pair of genes. This means that the inheritance of one trait does not affect the inheritance of another trait.

Topic: Biology, Principles of Inheritance and Variation, NEET
What is the basis of protection provided by vaccination and immunization?

Options:
A Antimicrobial substances
B Phagocytic cells
C Memory of the immune system
D Skin and mucous membranes

The correct answer is:
Memory of the immune system

Solution:
The basis of protection provided by vaccination and immunization is the memory of the immune system. On subsequent exposure to the same pathogen, the immune response is rapid and more intense.

Topic: Biology, Human Health and Diseases, NEET
What is the basis of similarities and differences between metallic and ionic crystals?

Options:
A Both involve the sharing of electrons between atoms.
B Similarities arise from the arrangement of charged ions, while differences arise from the type of bonding (ionic vs. metallic).
C Similarities arise from their color, while differences arise from their electrical conductivity.
D Similarities arise from their molecular structures, while differences arise from their lattice arrangements.

The correct answer is:
Similarities arise from the arrangement of charged ions, while differences arise from the type of bonding (ionic vs. metallic).

Solution:
Correct Option is : (B)
Similarities arise from the arrangement of charged ions, while differences arise from the type of bonding (ionic vs. metallic).

Topic: Chemistry, Solid State, NEET
What is the basis of the electronic structure of atoms in the quantum-mechanical model?

Options:
A Circular orbits of electrons
B Quantum numbers of electrons
C Atomic orbitals or "one-electron orbital wave functions"
D Schrödinger's equation

The correct answer is:
Atomic orbitals or "one-electron orbital wave functions"

Solution:
The basis of the electronic structure of atoms in the quantum-mechanical model is the concept of atomic orbitals or "one-electron orbital wave functions." These wave functions describe the probability distribution of finding an electron in different regions around the nucleus.

Topic: Chemistry, Structure of Atom, NEET
What is the basis of the Law of Segregation?

Options:
A The fact that the alleles show blending.
B The fact that both characters are seen in the F₂ generation.
C The fact that both parents contain two alleles during gamete formation.
D The fact that both alleles occur in triplets.

The correct answer is:
The fact that both parents contain two alleles during gamete formation.

Solution:
The Law of Segregation is based on the fact that during gamete formation, both parents contain two alleles that segregate from each other.

Topic: Biology, Principles of Inheritance and Variation, NEET
What is the basis of the octet rule?

Options:
A Chemical reactivity of noble gases
B Availability of 3d orbitals
C Formation of ionic compounds
D The number of valence electrons

The correct answer is:
Chemical reactivity of noble gases

Solution:
The octet rule is based upon the chemical inertness of noble gases.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What is the basis of variability/polymorphism in DNA sequences?

Options:
A Somatic mutations
B Germ cell mutations
C Accumulation of mutations in non-coding DNA sequences
D Changes in coding DNA sequences

The correct answer is:
Accumulation of mutations in non-coding DNA sequences

Solution:
Mutations in non-coding DNA sequences may not have any immediate effect on an individual's reproductive ability and thus tend to accumulate over generations, leading to variability/polymorphism.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the behavior of amino acids in aqueous solution when the carboxyl group loses a proton and the amino group accepts a proton?

Options:
A Formation of a positively charged ion
B Formation of a negatively charged ion
C Formation of a neutral compound
D Formation of a covalent bond

The correct answer is:
Formation of a neutral compound

Solution:
When the carboxyl group loses a proton and the amino group accepts a proton in an aqueous solution of amino acids, it results in the formation of a neutral compound.

Topic: Chemistry, Biomolecules, NEET
What is the behavior of diamagnetic substances when placed in a magnetic field?

Options:
A They become strongly magnetized.
B They become permanent magnets.
C They are magnetized in the same direction as the magnetic field.
D They are magnetized in the opposite direction to the magnetic field.

The correct answer is:
They are magnetized in the opposite direction to the magnetic field.

Solution:
Diamagnetic substances are weakly magnetized in a magnetic field in the opposite direction.

Topic: Chemistry, Solid State, NEET
What is the behavior of gas molecules at close distances?

Options:
A Gas molecules collide frequently.
B Gas molecules exhibit strong attractive forces.
C Gas molecules occupy negligible space.
D Gas molecules repel each other.

The correct answer is:
Gas molecules repel each other.

Solution:
Gas molecules must have forces of repulsion between them to prevent squashing in tiny volumes, implying that they repel each other.

Topic: Chemistry, States of Matter, NEET
What is the behavior of gas particles at ordinary temperature and pressure?

Options:
A They attract each other
B They have strong intermolecular forces
C They repel each other
D There is no force of attraction between them

The correct answer is:
There is no force of attraction between them

Solution:
Gas particles at ordinary temperature and pressure are assumed to have no force of attraction between them.

Topic: Chemistry, States of Matter, NEET
What is the behavior of gases at high pressures with respect to Boyle's law?

Options:
A Gases follow Boyle's law more closely at high pressures.
B Gases deviate from Boyle's law at high pressures.
C Gases become more compressible at high pressures.
D Gases have lower volumes at high pressures.

The correct answer is:
Gases deviate from Boyle's law at high pressures.

Solution:
At high pressures, gases deviate from Boyle's law, indicating that they do not follow it closely under such conditions.

Topic: Chemistry, States of Matter, NEET
What is the behavior of paramagnetic substances in the absence of a magnetic field?

Options:
A They retain their magnetism.
B They become permanent magnets.
C They lose their magnetism.
D They become strongly attracted to magnets.

The correct answer is:
They lose their magnetism.

Solution:
Paramagnetic substances lose their magnetism in the absence of a magnetic field.

Topic: Chemistry, Solid State, NEET
What is the behavior of the halides of group 14 elements in terms of hydrolysis?

Options:
A They do not undergo hydrolysis
B They undergo hydrolysis readily
C Hydrolysis depends on the oxidation state
D They only undergo hydrolysis in +2 state

The correct answer is:
They undergo hydrolysis readily

Solution:
Due to the presence of d orbital in other group 14 elements, their halides undergo hydrolysis.

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
What is the behavior of the pV vs. p plot for carbon monoxide and methane initially?

Options:
A Negative deviation
B Positive deviation
C No deviation
D Ideal behavior

The correct answer is:
Negative deviation

Solution:
The pV vs. p plot for carbon monoxide and methane initially shows a negative deviation from ideal behavior, where the pV value decreases with increasing pressure.

Topic: Chemistry, States of Matter, NEET
What is the behavior of the pV vs. p plot for real gases at constant temperature?

Options:
A It is always a straight line
B It shows significant deviation from ideal behavior
C It is not influenced by pressure changes
D It behaves like an ideal gas

The correct answer is:
It shows significant deviation from ideal behavior

Solution:
The pV vs. p plot for real gases at constant temperature exhibits a significant deviation from ideal behavior.

Topic: Chemistry, States of Matter, NEET
What is the benefit of keeping beehives in crop fields during flowering period?

Options:
A It decreases pollination efficiency
B It decreases the yield
C It improves the yield
D It has no effect

The correct answer is:
It improves the yield

Solution:
Keeping beehives in crop fields during flowering period increases pollination efficiency and improves the yield.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the best breeding method for animals that are below average in productivity?

Options:
A Inbreeding
B Out-crossing
C Cross-breeding
D Inter-specific hybridization

The correct answer is:
Out-crossing

Solution:
Out-crossing is the best breeding method for animals that are below average in productivity, as it helps to overcome inbreeding depression.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the best reagent to convert nitrile to primary amine?

Options:
A Oxidation of nitriles with NaI / Acetone gives primary amine
B Reduction of nitriles with KMnO4gives primary amine
C Oxidation of nitriles with sodium/alcohol or LiAlH4gives primary amine
D Reduction of nitriles with sodium/alcohol or LiAlH4gives primary amine

The correct answer is:
Reduction of nitriles with sodium/alcohol or LiAlH4gives primary amine

Solution:
Correct Option is : (D)
Reduction of nitriles with sodium/alcohol or LiAlH4gives primary amine

Topic: Chemistry, Amines, NEET
What is the best way to describe the outcome of interspecific interactions?

Options:
A Beneficial interaction
B Detrimental interaction
C Neutral interaction
D All of the above

The correct answer is:
All of the above

Solution:
Interspecific interactions could be beneficial, detrimental or neutral to one of the species or both.

Topic: Biology, Organisms and Populations, NEET
What is the best way to understand the relationship between genes and DNA?

Options:
A Analyzing RNA structure
B Studying genetic disorders
C Performing protein sequencing
D Examining protein structure

The correct answer is:
Studying genetic disorders

Solution:
The relationships between genes and DNA are best understood by mutation studies, particularly those involving genetic disorders.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the Bi ochemical Oxygen Demand (BOD) used for?

Options:
A Measuring the amount of biodegradable organic matter in sewage water
B Measuring the amount of dissolved salts in water
C Measuring the amount of toxic substances in water
D Measuring the amount of nutrients in water

The correct answer is:
Measuring the amount of biodegradable organic matter in sewage water

Solution:
The Bi ochemical Oxygen Demand (BOD) is used to estimate the amount of biodegradable organic matter in sewage water.

Topic: Biology, Environmental Issues, NEET
What is the binding energy (in J/mol or kJ/mol) of an electron in a metal, whose threshold frequency for photoelectron is 3.5×1013s-1 ?

Options:
A 66.38 kJ/mol
B 6.95 kJ/mol
C 13.91 kJ/mol
D 27.82 kJ/mol

The correct answer is:
13.91 kJ/mol

Solution:
Binding energy of electron =hÎ½0
=6.6Ã10-34kgm2s-1Ã3.5Ã1013s-1
=2.31Ã10-20 J
Binding energy of 1 mol e-=2.31Ã10-20Je-1Ã6.023Ã10231mole-
=13.91× 10 3  J/mol
=13.91 kJ/mol

Topic: Chemistry, Structure of Atom, NEET
What is the binding energy (in J/mol or kJ/mol) of an electron in a metal, whose threshold frequency for photon electron is 2.5×1014s-1 ?

Options:
A 99.38 kJ/mol
B 1.66×10-19 J/mol
C 2.75×10-43 J/mol
D 7.22×1017 kJ/mol

The correct answer is:
99.38 kJ/mol

Solution:
Binding energy of electron =hν0
=6.6×10-34kgm2s-1×2.5×1014s-1
=16.5×10-20 J
Binding energy of 1 mol e-=16.5×10-20Je-1×6.023×10231mole-
=99.38×103 J/mol
=99.38 kJ/mol

Topic: Chemistry, Chemical Kinetics, NEET
What is the binding energy (in MeV) of a nitrogen nucleus $N_{7}^{14}$, given its mass $m\left( N_{7}^{14} \right)$= 14.00307u?

Options:
A 104.7 MeV
B 123.5 MeV
C 90.2 MeV
D 135.9 MeV

The correct answer is:
104.7 MeV

Solution:
Correct Option is : (A)
104.7 MeV

Topic: Chemistry, Nuclear Physics, NEET
What is the binding energy of earth-sun system neglecting the effect of other planets and satellites? (Mass of earth Me=6Ã1024 kg, mass of the sun Ms=2Ã1030 kg-2, Distance between earth & sum =1.5Ã 10 11 m ) Assume circular orbit of earth around sun

Options:
A 8.8Ã1010Â J
B 8.8Ã103Â J
C 5.2Ã1033Â J
D 2.6Ã1033 J

The correct answer is:
2.6Ã1033 J

Solution:
Binding energy of the system =- GMeMs2r
=- 6.6×10-11×6×1024×2×10302×1.5×1011
=- 2.6×1033J
BE=2.6×1033J

Topic: Physics, Gravitation, NEET
What is the binding energy of the earth-sun system neglecting the effect of other planets and satellites? (Mass of earth Me=6Ã1024 kg, mass of the sun Ms=2Ã1030 kg-2, Distance between earth & sum =1.5Ã 10 11 m ) Assume circular orbit of the earth around the sun.

Options:
A 8.8Ã1010Â J
B 8.8Ã103Â J
C 5.2Ã1033Â J
D 2.6Ã1033 J

The correct answer is:
2.6Ã1033 J

Solution:
Binding energy of the system =- GMeMs2r
=- 6.6×10-11×6×1024×2×10302×1.5×1011
=- 2.6×1033J
BE=2.6×1033J

Topic: Physics, Gravitation, NEET
What is the binding energy of the nucleus $Fe_{26}^{56}$ in MeV, given its mass (m = 55.934939 u)?

Options:
A 7.34 MeV
B 8.79 MeV
C 9.22 MeV
D 10.56 MeV

The correct answer is:
8.79 MeV

Solution:
Correct Option is : (B)
8.79 MeV

Topic: Chemistry, Nuclear Physics, NEET