datavorous/entrance-exam-dataset huggingface dataset:
In which stage of the cell cycle the pairing between homologous chromosomes takes place?

Options:
A Zygotene
B Pachytene
C Diplotene
D Diakinesis

The correct answer is:
Zygotene

Solution:
Pairing between homologous chromosomes takes place in the Zygotene stage of Prophase 1 in meiosis

Topic: Biology, Cell Cycle and Cell Division, NEET
In which state can electron displacement occur under the influence of an atom or a substituent group?

Options:
A Excited state
B Ground state
C Both excited and ground states
D Neither excited nor ground states

The correct answer is:
Both excited and ground states

Solution:
Electron displacement can occur "either in the ground state under the influence of an atom or a substituent group."

Topic: Chemistry, General Organic Chemistry, NEET
In which states do ions become free to move about and conduct electricity?

Options:
A In the solid state
B In the gaseous state
C In the molten state or when dissolved in water
D In the transparent state

The correct answer is:
In the molten state or when dissolved in water

Solution:
Ions become free to move about and conduct electricity in the molten state or when dissolved in water, as mentioned in the paragraph.

Topic: Chemistry, Solid State, NEET
In which subshell do the 5f electrons resemble the 4f electrons in their angular part of the wave-function?

Options:
A 5f
B 4f
C 6d
D 7s

The correct answer is:
4f

Solution:
The 5f electrons resemble the 4f electrons in their angular part of the wave-function.

Topic: Chemistry, d and f Block Elements, NEET
In which thermodynamic process the temperature of the system decreases?

Options:
A Adiabatic compression
B Isothermal compression
C Isothermal expansion
D Adiabatic expansion

The correct answer is:
Adiabatic expansion

Solution:
During adiabatic expansion work is done by the sytem and internal energy decreases as a result.Since there is no heat transfer,temperature of the sysyem will decrease.

Topic: Chemistry, Thermodynamics (C), NEET
In which transformation the change of hybridization and shape about underlined atom take place?

Options:
A C_H3CH3→C_H3-+CH3+
B N_H3+BF3→H3N_+→B¯F3
C H2O_+H+→H3O_+
D N_H3+H+→N_H4+

The correct answer is:
N_H3+BF3→H3N_+→B¯F3

Solution:
NH 3 + B ¯ F 3 lp=0 bp=3 sp 2 Plane Triangle → H 3 N + → B ¯ − F 3  or H 3 N ⊕ − B ¯ − F 3 lp=0 bp=4 sp 3 Tetrahedral

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
In which trophic level of a terrestrial ecosystem such as forest maximum energy can be found in organism?

Options:
A T1
B T2
C T3
D T4

The correct answer is:
T1

Solution:
T1 or first tropic level in a terrestrial ecosystem is occupied by producer which traps solar energy and transfer it to successive tropic level. Maximum energy is always present in T1 and energy flow is always unidirectional.

Topic: Biology, Ecosystem, NEET
In which two metals in the following pairs the difference between the ionic radii is maximum?

Options:
A K,Ca
B Mn,Fe
C Co,Ni
D Cr,Mn

The correct answer is:
K,Ca

Solution:
Covalent radii decreases on going from left to right in periods. However among the transition elements the size do not changes much because the electrons add to the pneultimate d-subshells i.e.
(n-1)d- subshell.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
In which type of animals is the development of the zygote carried out inside the body of the female organism?

Options:
A Oviparous
B Viviparous
C Haplontic
D Diplontic

The correct answer is:
Viviparous

Solution:
In viviparous animals (majority of mammals including human beings), the zygote develops into a young one inside the body of the female organism.

Topic: Biology, Reproduction in Organisms, NEET
In which type of cells are microbodies present?

Options:
A Plant cells only
B Animal cells only
C Both plant and animal cells
D None of the above

The correct answer is:
Both plant and animal cells

Solution:
Microbodies are membrane-bound minute vesicles that contain various enzymes and are present in both plant and animal cells.

Topic: Biology, Cell - The Unit of Life, NEET
In which type of climate does classical smog typically occur?

Options:
A Warm and Sunny
B Cool and Humid
C Dry and Arid
D Tropical

The correct answer is:
Cool and Humid

Solution:
Classical smog occurs in cool, humid climates, making it a characteristic feature of such regions.

Topic: Chemistry, Environmental Chemistry, NEET
In which type of climate does photochemical smog typically occur?

Options:
A Cool and Humid
B Warm, Dry, and Sunny
C Rainy and Wet
D Cold and Snowy

The correct answer is:
Warm, Dry, and Sunny

Solution:
Photochemical smog typically occurs in warm, dry, and sunny climates.

Topic: Chemistry, Environmental Chemistry, NEET
In which type of complexes does geometrical isomerism typically arise?

Options:
A Homoleptic complexes
B Heteroleptic complexes
C Octahedral complexes
D Square planar complexes

The correct answer is:
Heteroleptic complexes

Solution:
Geometrical isomerism typically arises in heteroleptic complexes.

Topic: Chemistry, Coordination Compounds, NEET
In which type of compounds does oxygen generally have an oxidation number of -2?

Options:
A Peroxides
B Superoxides
C Halides
D Oxoacids

The correct answer is:
Oxoacids

Solution:
Oxygen generally has an oxidation number of -2 in most compounds, with exceptions such as in oxoacids.

Topic: Chemistry, Redox Reactions, NEET
In which type of environment are the majority of euglenoids found?

Options:
A Salt water
B Fresh water
C Terrestrial
D Marine

The correct answer is:
Fresh water

Solution:
Majority of euglenoids are found in fresh water environments, specifically in stagnant water.

Topic: Biology, Biological Classification, NEET
In which type of flower is the ovary completely enclosed by the margin of the thalamus?

Options:
A Hypogynous
B Perigynous
C Epigynous
D None of the above

The correct answer is:
Epigynous

Solution:
In epigynous flowers, the margin of the thalamus grows upward and encloses the ovary completely, fusing with it. The other parts of the flower arise above the ovary, making the ovary inferior. Examples of epigynous flowers include guava, cucumber, and the ray florets of sunflowers.

Topic: Biology, Morphology of Flowering Plants, NEET
In which type of flowers, stigma is hairy and sticky?

Options:
A Insect pollinated
B Wind pollinated
C Water pollinated
D All the above

The correct answer is:
Wind pollinated

Solution:
In wind-pollinated flowers, stigma is feathery and branched. Style and stigma are long. Long style bears feathery, hairy, sticky and branched stigma to trap pollen grains.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
In which type of ionic substances is the Frenkel defect commonly observed?

Options:
A Ionic substances with similar ion sizes
B Ionic substances with a large difference in ion sizes
C Ionic substances with covalent bonding
D Ionic substances with metallic properties

The correct answer is:
Ionic substances with a large difference in ion sizes

Solution:
The Frenkel defect is commonly observed in ionic substances with a large difference in ion sizes, such as ZnS, AgCl, AgBr, and AgI due to the small size of certain ions like Zn2+ and Ag+.

Topic: Chemistry, Solid State, NEET
In which type of ionic substances is the Schottky defect commonly observed?

Options:
A Ionic substances with similar ion sizes
B Ionic substances with a large difference in ion sizes
C Ionic substances with metallic properties
D Ionic substances with covalent bonding

The correct answer is:
Ionic substances with similar ion sizes

Solution:
The Schottky defect is commonly observed in ionic substances with cations and anions of almost similar sizes.

Topic: Chemistry, Solid State, NEET
In which type of isomerism do compounds have different alkyl chains on either side of the functional group?

Options:
A Chain isomerism
B Position isomerism
C Functional group isomerism
D Metamerism

The correct answer is:
Metamerism

Solution:
Metamerism arises due to different alkyl chains on either side of the functional group in the molecule.

Topic: Chemistry, General Organic Chemistry, NEET
In which type of isomerism do isomers have different bonds?

Options:
A Geometrical isomerism
B Optical isomerism
C Structural isomerism
D Coordination isomerism

The correct answer is:
Structural isomerism

Solution:
Structural isomerism is the type of isomerism where isomers have different bonds.

Topic: Chemistry, Coordination Compounds, NEET
In which type of molecule is an intramolecular hydrogen bond most likely to be found?

Options:
A Nonpolar molecules
B Ionic compounds
C Molecules containing highly electronegative elements
D Noble gases

The correct answer is:
Molecules containing highly electronegative elements

Solution:
Intramolecular hydrogen bonds are most likely to be found in molecules containing highly electronegative elements like fluorine (F), oxygen (O), or nitrogen (N).

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
In which type of molecules is the octet rule not satisfied for all the atoms?

Options:
A Molecules with an even number of electrons
B Molecules with an odd number of electrons
C Molecules with nitrogen atoms
D Molecules with oxygen atoms

The correct answer is:
Molecules with an odd number of electrons

Solution:
In molecules with an odd number of electrons like nitric oxide (NO) and nitrogen dioxide (NO2), the octet rule is not satisfied for all the atoms.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
In which type of natural selection does the peak get higher and narrower?

Options:
A Balancing selection
B Directional selection
C Stabilizing selection
D Both A & C

The correct answer is:
Stabilizing selection

Solution:
Stabilizing selection: If nature favours those individuals in the population which posses the mean character value, then it leads to stabilization of the traits.
Example: Weight of newborn babies.

Topic: Biology, Evolution, NEET
In which type of natural selection, individuals at both extremes of the distribution are rejected?

Options:
A Stabilizing selection
B Directional selection
C Diversifying selection
D Disruptive selection

The correct answer is:
Stabilizing selection

Solution:
Natural selection can lead to stabilization (in which more individuals acquire mean character value), directional change (more individuals acquire value other than the mean character value) or disruption (more individuals acquire peripheral character value at both ends of the distribution curve).

Topic: Biology, Evolution, NEET
In which type of neuron is the number of dendrites greater than the number of axons?

Options:
A Multipolar
B Bipolar
C Unipolar
D None of the above

The correct answer is:
Multipolar

Solution:
Multipolar neurons have one axon and two or more dendrites.

Topic: Biology, Neural Control and Coordination, NEET
In which type of organisms is the zygote formed in the external medium (usually water)?

Options:
A Organisms with external fertilisation
B Organisms with internal fertilisation
C Organisms with haplontic life cycle
D Organisms with diplontic life cycle

The correct answer is:
Organisms with external fertilisation

Solution:
In organisms with external fertilisation, the zygote is formed in the external medium (usually water).

Topic: Biology, Reproduction in Organisms, NEET
In which type of phyllotaxy do a pair of leaves arise at each node and lie opposite to each other?

Options:
A Whorled
B Alternate
C Opposite
D None of the above

The correct answer is:
Opposite

Solution:
In the opposite type of phyllotaxy, a pair of leaves arise at each node and lie opposite to each other, as seen in plants like Calotropis and guava.

Topic: Biology, Morphology of Flowering Plants, NEET
In which type of phyllotaxy does a single leaf arise at each node in an alternate manner?

Options:
A Whorled
B Opposite
C Alternate
D None of the above

The correct answer is:
Alternate

Solution:
In alternate types of phyllotaxy, a single leaf arises at each node in an alternate manner, as seen in plants like china rose, mustard, and sunflower.

Topic: Biology, Morphology of Flowering Plants, NEET
In which type of placentation do the ovules are attached to the placenta in a multilocular ovary?

Options:
A Marginal
B Axile
C Parietal
D Basal

The correct answer is:
Axile

Solution:
When the placenta is axial and the ovules are attached to it in a multilocular ovary, the placentation is said to be axile, as in china rose, tomato and lemon.

Topic: Biology, Morphology of Flowering Plants, NEET
In which type of placentation do the ovules borne on the central axis and septa are absent?

Options:
A Marginal
B Axile
C Parietal
D Free Central

The correct answer is:
Free Central

Solution:
When the ovules are borne on the central axis and septa are absent, as in Dianthus and Primrose the placentation is called free central.

Topic: Biology, Morphology of Flowering Plants, NEET
In which type of placentation do the ovules develop on the inner wall of the ovary?

Options:
A Marginal
B Axile
C Parietal
D Basal

The correct answer is:
Parietal

Solution:
In parietal placentation, the ovules develop on the inner wall of the ovary or on the peripheral part. Ovary is one-chambered but it becomes two-chambered due to the formation of the false septum, e.g., mustard and Argemone.

Topic: Biology, Morphology of Flowering Plants, NEET
In which type of placentation do the ovules form a ridge along the ventral suture of the ovary?

Options:
A Marginal
B Axile
C Parietal
D Basal

The correct answer is:
Marginal

Solution:
In marginal placentation, the placenta forms a ridge along the ventral suture of the ovary and the ovules are borne on this ridge forming two rows, as in pea.

Topic: Biology, Morphology of Flowering Plants, NEET
In which type of placentation does the placenta develop at the base of the ovary and a single ovule is attached to it?

Options:
A Marginal
B Axile
C Parietal
D Basal

The correct answer is:
Basal

Solution:
In basal placentation, the placenta develops at the base of the ovary and a single ovule is attached to it, as in sunflower, marigold.

Topic: Biology, Morphology of Flowering Plants, NEET
In which type of process is Cp – Cv = R applicable?

Options:
A Irreversible process
B Reversible process
C Adiabatic process
D Isothermal process

The correct answer is:
Adiabatic process

Solution:
The equation Cp – Cv = R is applicable to adiabatic processes involving ideal gases.

Topic: Chemistry, Thermodynamics (C), NEET
In which type of prokaryotic cells can chromatophores be found?

Options:
A Cyanobacteria
B E. coli
C Streptococcus
D All of the above

The correct answer is:
All of the above

Solution:
Chromatophores, which contain pigments, can be found in cyanobacteria, but not in E. coli or Streptococcus.

Topic: Biology, Cell - The Unit of Life, NEET
In which type of reaction does an oxidizing agent gain electrons?

Options:
A Reduction
B Oxidation
C Decomposition
D Precipitation

The correct answer is:
Reduction

Solution:
In a reduction reaction, the oxidizing agent gains electrons.

Topic: Chemistry, Redox Reactions, NEET
In which type of reactions does molecularity have no meaning?

Options:
A Zero-order reactions
B Complex reactions
C Elementary reactions
D First-order reactions

The correct answer is:
Complex reactions

Solution:
Molecularity has no meaning for complex reactions.

Topic: Chemistry, Chemical Kinetics, NEET
In which type of solids is the Frenkel defect typically observed?

Options:
A Metallic solids
B Molecular solids
C Ionic solids
D Covalent solids

The correct answer is:
Ionic solids

Solution:
The Frenkel defect is typically observed in ionic solids.

Topic: Chemistry, Solid State, NEET
In which type of solution does the oxidation of iodide to iodate by potassium permanganate occur?

Options:
A Acidic
B Neutral
C Alkaline
D Basic

The correct answer is:
Alkaline

Solution:
The oxidation of iodide to iodate by potassium permanganate occurs in neutral or faintly alkaline solutions.

Topic: Chemistry, d and f Block Elements, NEET
In which type of solution is the addition of OH- ions necessary to balance ionic charges in a redox reaction?

Options:
A Acidic solution
B Neutral solution
C Basic solution
D Aqueous solution

The correct answer is:
Basic solution

Solution:
OH- ions are added to balance ionic charges in a redox reaction when it is carried out in a basic solution.

Topic: Chemistry, Redox Reactions, NEET
In which type of solution should OH- ions be added to balance ionic charges in a redox reaction?

Options:
A Acidic solution
B Neutral solution
C Basic solution
D Aqueous solution

The correct answer is:
Basic solution

Solution:
OH- ions should be added to the equation when the reaction is carried out in a basic solution.

Topic: Chemistry, Redox Reactions, NEET
In which type of solvent is solvation enthalpy typically small, making it insufficient to overcome the lattice enthalpy of a salt?

Options:
A Polar solvent
B Non-polar (covalent) solvent
C Aqueous solvent
D Organic solvent

The correct answer is:
Non-polar (covalent) solvent

Solution:
In a non-polar (covalent) solvent, solvation enthalpy is typically small and insufficient to overcome the lattice enthalpy of a salt, making the salt insoluble in such solvents.

Topic: Chemistry, Ionic Equilibrium, NEET
In which type of solvent is the Wurtz-Fittig reaction typically carried out?

Options:
A Water
B Ethanol
C Dry ether
D Chloroform

The correct answer is:
Dry ether

Solution:
The Wurtz-Fittig reaction is typically carried out in dry ether as the solvent.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
In which type of solvents are alkenes fairly soluble?

Options:
A Water
B Alcohols
C Non-polar solvents like benzene
D Organic acids

The correct answer is:
Non-polar solvents like benzene

Solution:
Alkenes are fairly soluble in non-polar solvents like benzene due to their nonpolar nature.

Topic: Chemistry, Hydrocarbons, NEET
In which type of solvents, such as benzene, ether, methanol, and chloroform, are aldehydes and ketones generally fairly soluble?

Options:
A Inorganic solvents
B Aqueous solvents
C Organic solvents
D Metallic solvents

The correct answer is:
Organic solvents

Solution:
Aldehydes and ketones are fairly soluble in organic solvents like benzene, ether, methanol, chloroform, etc.

Topic: Chemistry, Aldehydes, Ketones and Carboxylic Acids, NEET
In which type of substitution reaction is a meta directing group most likely to have a significant impact on the reaction outcome?

Options:
A Nucleophilic substitution
B Electrophilic aromatic substitution
C Radical substitution
D Electrophilic addition

The correct answer is:
Electrophilic aromatic substitution

Solution:
A meta directing group has a significant impact on the outcome of electrophilic aromatic substitution reactions.

Topic: Chemistry, Hydrocarbons, NEET
In which type of titration does Cr2O72- oxidize diphenylamine to produce a dramatic color change?

Options:
A Acid-base titration
B Redox titration
C Complexometric titration
D Precipitation titration

The correct answer is:
Redox titration

Solution:
In redox titration, Cr2O72- oxidizes diphenylamine to produce a dramatic color change.

Topic: Chemistry, Redox Reactions, NEET
In which type of titration is K2Cr2O7
used as a self-indicator?

Options:
A Acid-base titration
B Redox titration
C Precipitation titration
D Complexometric titration

The correct answer is:
Redox titration

Solution:
K2Cr2O7 can act as a self-indicator in redox titrations, as described in the passage, where its color change indicates the end point of the titration.

Topic: Chemistry, Redox Reactions, NEET
In which type of vascular bundle, xylem is covered on both sides by phloem?

Options:
A Radial
B Conjoint
C Collateral
D Bicollateral

The correct answer is:
Bicollateral

Solution:
A vascular bundle is a long continuous strand of conductive tissues that extend from the roots through the stem and into the leaves. It consists of xylem and phloem that may differ in their arrangement. A vascular bundle having the phloem and cambium strands on both the outer and inner sides of xylem are called bicollateral. The arrangement is in a sequence of outer phloem, outer cambium, xylem, inner cambium, and inner phloem, for example, Cucurbita.

Topic: Biology, Anatomy of Flowering Plants, NEET
In which types of orbitals, such as p, d, or f, does the pairing of electrons occur later, following Hund's rule?

Options:
A P orbitals with the entry of the 2nd electron.
B D orbitals with the entry of the 3rd electron.
C F orbitals with the entry of the 7th electron.
D P orbitals with the entry of the 4th electron.

The correct answer is:
F orbitals with the entry of the 7th electron.

Solution:
"pairing of electrons will start in the p, d and f orbitals with the entry of 4th, 6th and 8th electron, respectively."

Topic: Chemistry, Structure of Atom, NEET
In which year did Ernst Mayr die?

Options:
A 1994
B 1999
C 2004
D 2008

The correct answer is:
2004

Solution:
Ernst Mayr died in the year 2004 at the age of 100.

Topic: Biology, The Living World, NEET
In which year did Ernst Mayr join Harvard's Faculty of Arts and Sciences?

Options:
A 1904
B 1953
C 1975
D 1999

The correct answer is:
1953

Solution:
Ernst Mayr joined Harvard's Faculty of Arts and Sciences in 1953.

Topic: Biology, The Living World, NEET
In Whittaker's five kingdom system, the viruses are given the place in

Options:
A Monera
B Protista
C Fungi
D They do not have any place in 5 kingdom system

The correct answer is:
They do not have any place in 5 kingdom system

Solution:
Whittaker has given the famous Five- Kingdom Classification. According to this classification the five kingdoms are Kingdom Monera, Protista, Fungi, Plantae and Animalia. These kingdoms are divided on the basis of Number of cells, Cell type, Cell wall, Mode of nutrition and Ecological role. All these are characters of living cell. Viruses did not get any place in this kingdom because these are not considered as 'true living'. Viruses do not have cell organelles and hence do not carry metabolism and cannot exist independently. These characters define them as non living and hence Whittaker did not include them in his Classification.

Topic: Biology, Biological Classification, NEET
In Wilkinson's catalyst, the hybrid state of central metal ion and shape of complex are respectively

Options:
A dsp2 , square planar
B sp3, tetrahedral
C d2sp3, octahedral
D sp3d2, octahedral

The correct answer is:
dsp2 , square planar

Solution:
Wilkinson's catalyst is [(Ph3P)3RhCl] . Here Rh assumes dsp2 hybrid state and the geometry is square planar.

Topic: Chemistry, Coordination Compounds, NEET
In Wolf-Kishner reduction, the carbonyl group of aldehydes and ketones is converted into

Options:
A -CH 2 group
B -CH3 group
C -CH2OH group
D >CHOH group

The correct answer is:
-CH 2 group

Solution:
Wolf kischner reduction : Hydrazine (NH2-NH2) followed by reaction with strong base like KOH reduce carbonyl group into alkyl group.
>C=OCarbonyl group+NH2Hydrazine-NH2âWolf-Kishner>C=N-NH2âKOH>CH2Alkyl group

Topic: Chemistry, Aldehydes and Ketones, NEET
In YDSE, intensity at central maxima is I0 . The ratio II0, at path difference λ8 on the screen from central maxima, is closed to

Options:
A 0.74
B 0.8
C 0.9
D 0.85

The correct answer is:
0.85

Solution:
∆ϕ=2πλ×λ8=π4
I=I0cos2⁡π8
=I01+cos⁡π/42
=I01+122=0.85 I0

Topic: Physics, Wave Optics, NEET
In YDSE, the ratio of maximum and minimum intensities of the fringe system is 4 : 1. The amplitudes of the coherent sources are in the ratio of

Options:
A 1 :1
B 3 :1
C 1 :4
D 5 :1

The correct answer is:
3 :1

Solution:
ImaxImin=41=I1+I2I1-I22
∴2=I1+I2I1-I2
∴I1I2=3=A1A2

Topic: Physics, Wave Optics, NEET