datavorous/entrance-exam-dataset huggingface dataset:
What is the consequence of fluoride ion concentration in drinking water exceeding 2 ppm?

Options:
A Enhanced tooth enamel protection
B Brown mottling of teeth
C Increased water clarity
D Reduced water hardness

The correct answer is:
Brown mottling of teeth

Solution:
Excess fluoride ion concentration above 2 ppm can cause brown mottling or staining of teeth.

Topic: Chemistry, Environmental Chemistry, NEET
What is the consequence of freon's presence in the stratosphere?

Options:
A Improved air quality
B Initiation of radical chain reactions
C Enhanced ozone production
D Reduced global warming

The correct answer is:
Initiation of radical chain reactions

Solution:
In the stratosphere, freon is able to initiate radical chain reactions which can upset the natural ozone balance.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
What is the consequence of gas particles being in constant and random motion?

Options:
A The gas has a fixed shape
B The gas particles are at rest
C The gas particles occupy fixed positions
D The gas does not have a fixed shape

The correct answer is:
The gas does not have a fixed shape

Solution:
The constant and random motion of gas particles results in a gas that does not have a fixed shape.

Topic: Chemistry, States of Matter, NEET
What is the consequence of growth at the cellular level?

Options:
A Decrease in the amount of protoplasm
B Increase in the amount of protoplasm
C No change in the amount of protoplasm
D Reversible increase in the amount of protoplasm

The correct answer is:
Increase in the amount of protoplasm

Solution:
Growth at the cellular level is primarily a consequence of an increase in the amount of protoplasm.

Topic: Biology, Plant - Growth and Development, NEET
What is the consequence of having more energy in the molecules on the surface of a liquid?

Options:
A Increased viscosity
B Increased density
C Increased vapor pressure
D Decreased surface tension

The correct answer is:
Increased vapor pressure

Solution:
Molecules on the surface have more energy, which leads to increased vapor pressure.

Topic: Chemistry, States of Matter, NEET
What is the consequence of high BOD in water?

Options:
A Enhanced water quality
B Improved aquatic biodiversity
C Foul odor and harm to human health
D Increased dissolved oxygen levels

The correct answer is:
Foul odor and harm to human health

Solution:
High BOD in water leads to the production of chemicals with a foul smell and can be harmful to human health.

Topic: Chemistry, Environmental Chemistry, NEET
What is the consequence of hydrogen bond formation between molecules in electron-rich hydrides?

Options:
A The molecules dissociate into ions.
B The molecules become less volatile.
C The molecules associate with each other.
D The molecules gain excess electrons.

The correct answer is:
The molecules associate with each other.

Solution:
Hydrogen bond formation between molecules in electron-rich hydrides leads to the association of molecules.

Topic: Chemistry, Hydrogen, NEET
What is the consequence of overproduction of acid in the stomach?

Options:
A Decreased pH
B Irritation and pain
C Alkaline stomach
D Production of ulcers

The correct answer is:
Irritation and pain

Solution:
Overproduction of acid in the stomach causes irritation and pain.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What is the consequence of poor waste management?

Options:
A Contamination of ground water.
B Increase in recycling rates.
C Improved health conditions.
D Decrease in the population of cattle.

The correct answer is:
Contamination of ground water.

Solution:
Poor waste management can lead to the contamination of ground water.

Topic: Chemistry, Environmental Chemistry, NEET
What is the consequence of prolonged exposure to high levels of sulphate in drinking water for infants?

Options:
A Delayed growth
B Impaired cognitive development
C Respiratory issues
D All of the above

The correct answer is:
All of the above

Solution:
Prolonged exposure to high levels of sulphate in drinking water can have various adverse effects on infants, including delayed growth, impaired cognitive development, and respiratory issues.

Topic: Chemistry, Environmental Chemistry, NEET
What is the consequence of the carbon-oxygen bond in phenols having a partial double bond character?

Options:
A Phenols are highly reactive.
B Phenols are less reactive.
C Phenols are insoluble in most solvents.
D Phenols cannot form aryl halides.

The correct answer is:
Phenols are less reactive.

Solution:
The partial double bond character of the carbon-oxygen bond in phenols makes them less reactive.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
What is the consequence of the chemical reaction between 2AuCl3, 3HCHO, and 3H2O?

Options:
A Formation of 2Au(sol) and 3HCOOH
B Formation of 6HCl
C Formation of SO2 and 2H2S
D Formation of Fe(OH)3(sol) and 3HCl

The correct answer is:
Formation of 2Au(sol) and 3HCOOH

Solution:
The chemical reaction between 2AuCl3, 3HCHO, and 3H2O results in the formation of 2Au(sol) and 3HCOOH.

Topic: Chemistry, Surface Chemistry, NEET
What is the consequence of the dual behavior of matter and radiation that leads to the uncertainty principle?

Options:
A The existence of quantum mechanics
B The impossibility of determining the exact position and momentum of an electron simultaneously
C The existence of wave-particle duality
D The existence of atomic nuclei

The correct answer is:
The impossibility of determining the exact position and momentum of an electron simultaneously

Solution:
Uncertainty principle is a consequence of the dual behavior of matter and radiation and it states the impossibility of determining the exact position and momentum (or velocity) of an electron simultaneously.

Topic: Chemistry, Structure of Atom, NEET
What is the consequence of the high enthalpy of H–H bond in terms of chemical reactivity of dihydrogen?

Options:
A It makes dihydrogen highly reactive, leading to its ability to form strong covalent bonds with other elements.
B It makes dihydrogen relatively unreactive at room temperature, requiring high temperatures and catalysts for most reactions.
C It allows dihydrogen to undergo combustion reactions with oxygen readily.
D It promotes the formation of dihydrogen from its constituent elements at low temperatures.

The correct answer is:
It makes dihydrogen relatively unreactive at room temperature, requiring high temperatures and catalysts for most reactions.

Solution:
Correct Option is : (B)
It makes dihydrogen relatively unreactive at room temperature, requiring high temperatures and catalysts for most reactions.

Topic: Chemistry, Hydrogen, NEET
What is the consequence of the lanthanoid contraction?

Options:
A Zr and Hf have significantly different radii.
B Zr and Hf have identical radii.
C Zr has a larger radius than Hf.
D Hf has a larger radius than Zr.

The correct answer is:
Zr and Hf have identical radii.

Solution:
The almost identical radii of Zr (160 pm) and Hf (159 pm), a consequence of the lanthanoid contraction, account for their occurrence together in nature and for the difficulty faced in their separation

Topic: Chemistry, d and f Block Elements, NEET
What is the consequence of the negatively charged sheath around globules?

Options:
A Increased coagulation
B Enhanced aggregate formation
C Prevention of globule coagulation
D Inhibition of emulsification

The correct answer is:
Prevention of globule coagulation

Solution:
The negatively charged sheath prevents globules from coming together and forming aggregates.

Topic: Chemistry, Surface Chemistry, NEET
What is the constant of proportionality between the elevation of boiling point and the molality of the solute?

Options:
A Molal Constant
B Elevation Constant
C Boiling Point Constant
D Molal Elevation Constant

The correct answer is:
Molal Elevation Constant

Solution:
The constant of proportionality between the elevation of boiling point and the molality of the solute is called the Molal Elevation Constant.

Topic: Chemistry, Solutions, NEET
What is the constant of proportionality for electrical resistance, and what is it called?

Options:
A Constant: G, Name: conductivity
B Constant: 𝛒, Name: resistivity
C Constant: A, Name: ampacity
D Constant: V, Name: voltage

The correct answer is:
Constant: 𝛒, Name: resistivity

Solution:
The constant of proportionality for electrical resistance is '𝛒,' and it is called resistivity.

Topic: Chemistry, Electrochemistry, NEET
What is the constant speed at which an object falling through a fluid settles after a long time of release, if its acceleration is described by a = g - bv, where g is the gravitational acceleration and b is a constant?

Options:
A v = g
B v = g - b
C v = g/b
D v = g + b

The correct answer is:
v = g/b

Solution:
Correct Option is : (C)
v = g/b

Topic: Chemistry, Motion In One Dimension, NEET
What is the context of the origin of life?

Options:
A The evolution of the earth
B The evolution of the stars
C The evolution of the universe
D The evolution of plant life

The correct answer is:
The evolution of the earth

Solution:
The context of origin of life is the evolution of earth.

Topic: Biology, Evolution, NEET
What is the continuous operation of the fuel cell dependent on?

Options:
A The rate of electrode reactions
B The concentration of sodium hydroxide solution
C The availability of platinum catalysts
D The supply of reactants

The correct answer is:
The supply of reactants

Solution:
The cell runs continuously as long as the reactants are supplied.

Topic: Chemistry, Electrochemistry, NEET
What is the contraceptive value of Saheli, the new oral contraceptive for females?

Options:
A Low contraceptive value
B Moderate contraceptive value
C High contraceptive value
D Nil contraceptive value

The correct answer is:
High contraceptive value

Solution:
Saheli is a new oral contraceptive for females and is a 'once a week' pill with very few side effects and high contraceptive value.

Topic: Biology, Reproductive Health, NEET
What is the contribution of agriculture to India's GDP?

Options:
A 10 per cent
B 20 per cent
C 33 per cent
D 50 per cent

The correct answer is:
33 per cent

Solution:
Agriculture accounts for approximately 33 per cent of India’s GDP.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the contribution of Cornelius van Niel to the understanding of photosynthesis?

Options:
A He discovered the process of photosynthesis
B He demonstrated that photosynthesis is a light-dependent reaction
C He showed that H₂S is the hydrogen donor for photosynthesis
D He proved that O₂ evolved from carbon dioxide during photosynthesis

The correct answer is:
He demonstrated that photosynthesis is a light-dependent reaction

Solution:
Cornelius van Niel demonstrated that photosynthesis is essentially a light-dependent reaction in which hydrogen from a suitable oxidisable compound reduces carbon dioxide to carbohydrates.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the contribution of India and China to the world farm produce?

Options:
A 25 per cent
B 35 per cent
C 50 per cent
D 70 per cent

The correct answer is:
25 per cent

Solution:
Although it is estimated that more than 70 per cent of the world livestock population is in India and China, their contribution to the world farm produce is only 25 per cent.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the contribution of solar energy to the diversity of species in tropical latitudes?

Options:
A Direct contribution
B Indirect contribution
C No contribution
D Both direct and indirect contribution

The correct answer is:
Indirect contribution

Solution:
Ecologists and evolutionary biologists have proposed that there is more solar energy available in the tropics, which contributes indirectly to greater diversity through higher productivity.

Topic: Biology, Biodiversity and its Conservation, NEET
What is the contribution of the oceans to the primary productivity of the biosphere?

Options:
A 70%
B 55%
C 170%
D None of the above

The correct answer is:
55%

Solution:
Despite occupying about 70% of the surface, the productivity of the oceans are only 55 billion tons.

Topic: Biology, Ecosystem, NEET
What is the convention for naming restriction enzymes?

Options:
A The first letter of the name is derived from the genus, and the second two letters come from the species of the prokaryotic cell from which they were isolated.
B The name is derived from the strain of bacteria.
C The name is derived from the order in which the enzymes were isolated.
D The name is derived from the specific recognition sequence

The correct answer is:
The first letter of the name is derived from the genus, and the second two letters come from the species of the prokaryotic cell from which they were isolated.

Solution:
The naming convention for restriction enzymes is to take the first letter of the genus and the second two letters from the species of the prokaryotic cell from which the enzyme was isolateD) For example, EcoRI comes from Escherichia coli RY 130.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the conventional method of breeding for disease resistance in crops?

Options:
A Mutation breeding
B Hybridisation and selection
C Screening germplasm for resistance sources
D Testing and release of new varieties

The correct answer is:
Hybridisation and selection

Solution:
The conventional method of breeding for disease resistance in crops is hybridisation and selection.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the coordination compound of magnesium in photosynthesis?

Options:
A Chlorophyll
B Hemoglobin
C Vitamin B12
D Carboxypeptidase A

The correct answer is:
Chlorophyll

Solution:
Chlorophyll is the coordination compound of magnesium in photosynthesis.

Topic: Chemistry, Coordination Compounds, NEET
What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate?

Options:
A K3[Cu(CN)4]
B K4[Cu(CN)6]
C K2[Cu(CN)4]
D K5[Cu(CN)8]

The correct answer is:
K2[Cu(CN)4]

Solution:
Correct Option is : (C)
K2[Cu(CN)4]

Topic: Chemistry, Coordination Compounds, NEET
What is the coordination geometry of each Mn atom in the covalent oxide Mn2O7?

Options:
A Octahedral
B Tetrahedral
C Trigonal planar
D Linear

The correct answer is:
Tetrahedral

Solution:
In the covalent oxide Mn2O7, each Mn is tetrahedrally surrounded by O's.

Topic: Chemistry, d and f Block Elements, NEET
What is the coordination number in both cubic close-packed (ccp) and hexagonal close-packed (hcp) structures?

Options:
A 4
B 6
C 8
D 12

The correct answer is:
12

Solution:
The coordination number in both cubic close-packed (ccp) and hexagonal close-packed (hcp) structures is 12, as each sphere is in contact with twelve spheres.

Topic: Chemistry, Solid State, NEET
What is the coordination number in species of heavier elements in a +5 oxidation state?

Options:
A Two-coordination
B Three-coordination
C Four-coordination
D Five-coordination

The correct answer is:
Four-coordination

Solution:
In a +5 oxidation state, both nitrogen (N) and phosphorus (P) form oxoanions with four-coordination involving s, p, and d orbitals contributing to the π-bond.

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
What is the coordination number of a particle in a one-dimensional close-packed structure?

Options:
A 2
B 4
C 6
D 8

The correct answer is:
2

Solution:
In a one-dimensional close-packed structure, the coordination number of a particle is 2, as each sphere is in contact with two of its neighbors.

Topic: Chemistry, Solid State, NEET
What is the coordination number of atoms in a body-centred cubic structure?

Options:
A 6
B 8
C 12
D 4

The correct answer is:
6

Solution:
Correct Option is : (A)
6

Topic: Chemistry, Solid State, NEET
What is the coordination number of atoms in a cubic close-packed structure?

Options:
A 6
B 8
C 12
D 4

The correct answer is:
12

Solution:
Correct Option is : (C)
12

Topic: Chemistry, Solid State, NEET
What is the coordination number of Ni in nickel DMG complex?

Options:
A 2
B 3
C 6
D 4

The correct answer is:
4

Solution:
It is evident from the structure of Ni-dmg complex that coordination number of Ni is 4 dmg (dimethyl glyoximato) is a bidentate ligand..
Ni dmg 2 dmg is bidentate ligand.

Topic: Chemistry, Coordination Compounds, NEET
What is the coordination number required for geometrical isomerism to occur?

Options:
A 2
B 4
C 6
D 8

The correct answer is:
4

Solution:
Geometrical isomerism is particularly important in complexes with a coordination number of 4.

Topic: Chemistry, Coordination Compounds, NEET
What is the coordination polyhedron around the central atom/ion in [Cu(NH3)4(H2O)2]2+?

Options:
A Octahedral
B Square planar
C Tetrahedral
D Square bipyramidal

The correct answer is:
Tetrahedral

Solution:
The coordination polyhedron around the central atom/ion in [Cu(NH3)4(H2O)2]2+ is tetrahedral.

Topic: Chemistry, Coordination Compounds, NEET
What is the coordination system that provides point-to-point rapid coordination among organs?

Options:
A Neural system
B Endocrine system
C Hormonal system
D Nervous system

The correct answer is:
Neural system

Solution:
The neural system provides a point-to-point rapid coordination among organs.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the coronary system responsible for?

Options:
A Blood circulation to digestive tract
B Blood circulation to the cardiac musculature
C Blood circulation to liver
D None of the above

The correct answer is:
Blood circulation to the cardiac musculature

Solution:
A special coronary system of blood vessels is present in our body exclusively for the circulation of blood to and from the cardiac musculature.

Topic: Biology, Body Fluids and Circulation, NEET
What is the correct classification of Hemichordata?

Options:
A Sub-phylum under Chordata
B Separate phylum under Chordata
C Separate phylum under Non-chordata
D Class under Non-chordata

The correct answer is:
Separate phylum under Non-chordata

Solution:
Hemichordata was earlier considered as a sub-phylum under phylum Chordata, but now it is placed as a separate phylum under non-chordata.

Topic: Biology, Animal Kingdom, NEET
What is the correct decreasing order for acid strength?

Options:
A NO2CH2COOH>FCH2COOH>CNCH2COOH>ClCH2COOH
B NO2CH2COOH>NCCH2COOH>FCH2COOH>ClCH2COOH
C CNCH2COOH>O2NCH2COOH>FCH2COOH>ClCH2COOH
D FCH2COOH>NCCH2COOH>NO2CH2COOH>ClCH2COOH

The correct answer is:
NO2CH2COOH>NCCH2COOH>FCH2COOH>ClCH2COOH

Solution:
Acidic character â stability of conjugate base (anion)
Stability of anion ∝–I
Hence greater the âI effect greater will be the acidity
Order of -I effect -NO2>CN>-F>-Cl Hence, the order of acidity ka will be
O 2 NCH 2 COOH> NCCH 2 COOH> FCH 2 COOH> Cl CH 2 COOH

Topic: Chemistry, General Organic Chemistry, NEET
What is the correct description of the magnitude and direction of the net force acting on a high-speed electron in space far from all material objects and free of electric and magnetic fields?

Options:
A Zero force, since there are no material objects, electric fields, or magnetic fields in space.
B A force in the direction of the electron's velocity, since it has kinetic energy.
C A force in the opposite direction of the electron's velocity, slowing it down.
D A force perpendicular to the electron's velocity, causing it to change direction.

The correct answer is:
Zero force, since there are no material objects, electric fields, or magnetic fields in space.

Solution:
Correct Option is : (A)
Zero force, since there are no material objects, electric fields, or magnetic fields in space.

Topic: Chemistry, Laws of Motion, NEET
What is the correct difference between first and second order reactions?

Options:
A A first-order reaction can be catalyzed; a second-order reaction cannot be catalyzed.
B The half-life of a first-order reaction does not depend on A0; the half-life of a second-order reaction does depend on A0.
C The rate of a first-order reaction does not depend on reactant concentrations; the rate of a second-order reaction does depend on reactant concentrations.
D The rate of a first-order reaction does depend on reactant concentrations; the rate of a second-order reaction does not depend on reactant concentrations.

The correct answer is:
The half-life of a first-order reaction does not depend on A0; the half-life of a second-order reaction does depend on A0.

Solution:
⇒ (t12)∝(Initial concentration)1−order of Reactiont12 for 1st order = Independent of Concentration
t12for 2nd order ∝1A0
⇒ Rate of first order reaction ∝(A0)1
Rate of second order reaction ∝(A0)2 rate of first order reaction and second order reaction depends on initial concentration.

Topic: Chemistry, Chemical Kinetics, NEET, NEET 2018
What is the correct difference between the following diagrams?

(I) (II)

Options:
A Absence of mesophyll tissue in (II)
B Absence of cuticle in (I).
C Absence of sub-stomatal chamber in both types of the leaves in (I).
D Absence of palisade tissue in (II)

The correct answer is:
Absence of palisade tissue in (II)

Solution:
I is the cross section of dicot leaf while II is the cross section of monocot leaf. In dicot leaf, the mesophyll cells are differentiated into palisade cells which are closely placed and spongy cells which are loosely placed. In dicot leaf, stomata are present on the lower surface. Thus sub-stomatal chambers are present only on the lower surface. In monocot leaf, stomata are present on the upper as well as the lower surface. Thus sub-stomatal chambers are present only on both the surfaces.

Topic: Biology, Morphology of Flowering Plants, NEET
What is the correct distance at which the lens should be held from the card sheet divided into squares, each of size 1 mm², in order to view the squares distinctly with the maximum possible magnifying power?

Options:
A 5.25 cm
B 6.50 cm
C 7.14 cm
D 8.00 cm

The correct answer is:
7.14 cm

Solution:
Correct Option is : (C)
7.14 cm

Topic: Chemistry, Ray Optics, NEET
What is the correct electronic configuration of the central atom in K4FeCN6 based on crystal field theroy?

Options:
A t2g4eg2
B t2g6eg0
C e3t23
D e4t22

The correct answer is:
t2g6eg0

Solution:
In the complex: K4FeCN6, Fe exists as Fe2+.

Electronic configuration=Ar3d6

∵CN is a strong ligand, it will cause pairing up →

∴ Electronic configuration is t2g6eg0

Topic: Chemistry, Coordination Compounds, NEET, NEET 2019 (All India)
What is the correct explanation of the non-reducing property of sucrose?

Options:
A α -D-glucopyranose and β -D-fructofuranose are linked via C2 and C1 centres respectively
B α -D-glucopyranose and β -D-fructofuranose are linked via C1 and C2 centres respectively
C α -D-glucopyranose and β -D-fructofuranose are linked via C2 and C2 centres respectively
D α -D-glucopyranose and β -D-fructofuranose are linked via C3 and C4 centres respectively

The correct answer is:
α -D-glucopyranose and β -D-fructofuranose are linked via C1 and C2 centres respectively

Solution:
Sucrose is a non-reducing sugar since, both glucose (C1-α) and fructose (C1-β) are connected to each other through their reducing centers.

Topic: Chemistry, Biomolecules, NEET
What is the correct increasing order of ionic atomic radii in the following?

Options:
A Si4+<P5+<S6+<Cl7+
B P5+<Si4+<Cl7+<S6+
C Cl7+<S6+<P5+<Si4+
D S6+<P5+<Cl7+<Si4+

The correct answer is:
Cl7+<S6+<P5+<Si4+

Solution:
In case of isoelectronic species size â 1 magnitudeâ of +veâcharge
Hence the correct order is Cl7+<S6+<P5+<Si4+ .
As e/p ratio decrease with the increase of positive charge so zeff increases and size decreases.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What is the correct IUPAC name of this compound?

Options:
A 4-cyclopropyl-4-propyl hexene
B 4-ethyl-4-cyclopropyl heptene
C 4-cyclopropyl-4-ethyl heptene
D Both B and C

The correct answer is:
4-cyclopropyl-4-ethyl heptene

Solution:
the correct IUPAC name is 4-cyclopropyl-4-ethyl heptene

Topic: Chemistry, Hydrocarbons, NEET