datavorous/entrance-exam-dataset huggingface dataset:
What is the mechanism of the nitration of benzene?

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

The correct answer is:
Electrophilic aromatic substitution

Solution:
The nitration of benzene follows the mechanism of electrophilic aromatic substitution, where an electrophile (nitronium ion) is substituted for a hydrogen atom in the benzene ring.

Topic: Chemistry, Hydrocarbons, NEET
What is the mechanism to bring male and female gametes together in flowering plants?

Options:
A Germination
B Fertilization
C Pollination
D Pollen release

The correct answer is:
Pollination

Solution:
In flowering plants, both male and female gametes are produced in the pollen grain and embryo sac respectively. As both types of gametes are non-motile, they have to be brought together for fertilization to occur. This objective is achieved through pollination, which is the transfer of pollen grains from the anther to the stigma of a pistil.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What is the mechanism used for the translocation of sugars in the phloem?

Options:
A Passive transport
B Pressure flow hypothesis
C Diffusion
D Active transport

The correct answer is:
Pressure flow hypothesis

Solution:
The accepted mechanism used for the translocation of sugars from source to sink is called the pressure flow hypothesis. This mechanism involves the movement of sap in the phloem due to a difference in water potential created by the loading of sugars at the source.

Topic: Biology, Transport in Plants, NEET
What is the medical condition known as when dissolved gases in the blood of scuba divers form bubbles and block capillaries?

Options:
A Bends
B Nitrogen toxicity
C Decompression sickness
D Oxygen deficiency

The correct answer is:
Bends

Solution:
The paragraph mentions that when dissolved gases in the blood of scuba divers form bubbles and block capillaries, it creates a medical condition known as "bends."

Topic: Chemistry, Solutions, NEET
What is the medicinal use of narcotic drugs?

Options:
A Narcotic drugs are used to treat mosquito-infected diseases.
B Narcotic drugs are primarily used as over-the-counter pain causers.
C Narcotic drugs are used for their non-stimulant effects on the central nervous system.
D Since narcotic drugs relieve pain and produce sleep, these are chiefly used for the relief of postoperative pain, cardiac pain and pain of terminal cancer and in childbirth.

The correct answer is:
Since narcotic drugs relieve pain and produce sleep, these are chiefly used for the relief of postoperative pain, cardiac pain and pain of terminal cancer and in childbirth.

Solution:
Correct Option is : (D)
Since narcotic drugs relieve pain and produce sleep, these are chiefly used for the relief of postoperative pain, cardiac pain and pain of terminal cancer and in childbirth.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What is the medium through which male gametes move in simple plants like algae, bryophytes and pteridophytes?

Options:
A Air
B Water
C Land
D None of the above

The correct answer is:
Water

Solution:
In several simple plants like algae, bryophytes and pteridophytes, water is the medium through which the gamete transfer takes place.

Topic: Biology, Reproduction in Organisms, NEET
What is the megasporangium?

Options:
A A type of placentation
B A type of angiosperm ovule
C A type of funicle
D None of the above

The correct answer is:
A type of angiosperm ovule

Solution:
The megasporangium (ovule) is a small structure attached to the placenta by means of a stalk called funicle.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What is the melting point of benzene if ΔHfusion=9.95 kJ/mol and ΔSfusion35.7 J/K-mol?

Options:
A 278.7 o C
B 278.7 K
C 300 K
D 298 K

The correct answer is:
278.7 K

Solution:
T=ÎHÎS=9.95Ã100035.7
=278.7 K

Topic: Chemistry, Thermodynamics (C), NEET
What is the melting point of gallium?

Options:
A 303 K
B 2676 K
C 0 K
D 273K

The correct answer is:
303 K

Solution:
Gallium has an unusually low melting point of 303 K.

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
What is the metabolic fate of pyruvate?

Options:
A Lactic acid fermentation
B Alcoholic fermentation
C Aerobic respiration
D Depends on the cellular need

The correct answer is:
Depends on the cellular need

Solution:
The metabolic fate of pyruvate depends on the cellular need.

Topic: Biology, Respiration in Plants, NEET
What is the "Metallic Radius" used to estimate?

Options:
A The size of an individual atom
B The size of a covalent molecule
C The distance between metal cores in a metallic crystal
D The covalent radius of a metal

The correct answer is:
The distance between metal cores in a metallic crystal

Solution:
The "Metallic Radius" is used to estimate the size of a metal and is taken as half the internuclear distance separating the metal cores in the metallic crystal.

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

Options:
A The plane of alignment of the chromosomes at metaphase
B The structure that holds the chromosomes in place during mitosis
C The centromere of a chromosome
D A small disc-shaped structure at the surface of the centromeres

The correct answer is:
The plane of alignment of the chromosomes at metaphase

Solution:
The metaphase plate is the plane of alignment of the chromosomes at metaphase, where all the chromosomes come to lie at the equator.

Topic: Biology, Cell Cycle and Cell Division, NEET
What is the metaphase plate?

Options:
A The point of attachment of spindle fibres to the chromosomes
B The point where the chromosomes align along the spindle equator
C The point where the chromatids are separated
D The point where the centromeres are located

The correct answer is:
The point where the chromosomes align along the spindle equator

Solution:
The metaphase plate is the plane of alignment of the chromosomes during metaphase, where they are moved to the spindle equator and aligned along it through the attachment of spindle fibres to the kinetochores.

Topic: Biology, Cell Cycle and Cell Division, NEET
What is the method by which a single individual produces offspring called?

Options:
A Sexual reproduction
B Binary fission
C Mitosis
D Asexual reproduction

The correct answer is:
Asexual reproduction

Solution:
Asexual reproduction is the method by which a single individual (parent) is capable of producing offspring.

Topic: Biology, Reproduction in Organisms, NEET
What is the method for laboratory preparation of dihydrogen mentioned in the paragraph?

Options:
A Reaction of zinc with oxygen
B Reaction of zinc with water vapor
C Reaction of zinc with dilute hydrochloric acid
D Reaction of zinc with concentrated hydrochloric acid

The correct answer is:
Reaction of zinc with dilute hydrochloric acid

Solution:
The paragraph states that dihydrogen is usually prepared by the reaction of granulated zinc with dilute hydrochloric acid.

Topic: Chemistry, Hydrogen, NEET
What is the method for the estimation of phosphorus in an organic compound?

Options:
A Carius method
B Kjeldahl's method
C Phosphomolybdate method
D Magnesia method

The correct answer is:
Phosphomolybdate method

Solution:
The paragraph describes the Phosphomolybdate method for the estimation of phosphorus in an organic compound.

Topic: Chemistry, General Organic Chemistry, NEET
What is the method for the estimation of sulfur in an organic compound?

Options:
A Dumas method
B Kjeldahl's method
C Sulphuric acid method
D Barium sulfate method

The correct answer is:
Barium sulfate method

Solution:
The paragraph describes the Barium sulfate method for the estimation of sulfur in an organic compound.

Topic: Chemistry, General Organic Chemistry, NEET
What is the method of asexual reproduction in basidiomycetes?

Options:
A Zoospores
B Conidia
C Sporangiospores
D Vegetative reproduction by fragmentation

The correct answer is:
Vegetative reproduction by fragmentation

Solution:
The asexual spores are generally not found, but vegetative reproduction by fragmentation is common.

Topic: Biology, Biological Classification, NEET
What is the method of asexual reproduction referred to as vegetative propagation?

Options:
A Cell division or binary fission of the parent cell
B Formation of gametes and transfer of gametes
C Formation of zygote and embryogenesis
D Reproduction by runners, rhizomes, suckers, tubers, offsets, etc

The correct answer is:
Reproduction by runners, rhizomes, suckers, tubers, offsets, etc

Solution:
In several aquatic and terrestrial species of angiosperms, structures such as runners, rhizomes, suckers, tubers, offsets, etc, can give rise to new offspring. This method of asexual reproduction is referred to as vegetative propagation.

Topic: Biology, Reproduction in Organisms, NEET
What is the method of introducing semen either into the vagina or into the uterus of the female?

Options:
A IUI
B GIFT
C AI
D ICSI

The correct answer is:
IUI

Solution:
Intra:uterine insemination (IUI) is the method of introducing semen either into the vagina or into the uterus of the female.

Topic: Biology, Reproductive Health, NEET
What is the method of reproduction common in lower animals?

Options:
A Binary fission
B Vegetative propagation
C Budding and gemmule formation
D Formation of gametes and transfer of gametes

The correct answer is:
Budding and gemmule formation

Solution:
In lower animals, budding and gemmule formation are the common methods of asexual reproduction.

Topic: Biology, Reproduction in Organisms, NEET
What is the method of reproduction for molluscs?

Options:
A Oviparous
B Viviparous
C Both
D None

The correct answer is:
Oviparous

Solution:
Molluscs are usually dioecious and oviparous with indirect development.

Topic: Biology, Animal Kingdom, NEET
What is the method of reproduction in deuteromycetes?

Options:
A Vegetative reproduction
B Sexual reproduction
C Asexual reproduction by conidia
D Both A) and B)

The correct answer is:
Asexual reproduction by conidia

Solution:
Deuteromycetes reproduce only by asexual spores known as conidia.

Topic: Biology, Biological Classification, NEET
What is the method of reproduction used by gardeners and farmers for commercial propagation of plants?

Options:
A Sexual reproduction
B Asexual reproduction
C Fragmentation
D Vegetative reproduction

The correct answer is:
Asexual reproduction

Solution:
Asexual reproduction is the method used by gardeners and farmers for commercial propagation of plants.

Topic: Biology, Reproduction in Organisms, NEET
What is the method used to increase the efficiency of DNA entering the bacterium through its cell wall?

Options:
A Injecting DNA directly into the nucleus
B Using a high velocity micro-particles
C Using a disarmed pathogen
D Treating cells with a specific concentration of a divalent cation

The correct answer is:
Treating cells with a specific concentration of a divalent cation

Solution:
In order to force bacteria to take up the plasmid, the bacterial cells must first be made competent to take up DNA by treating them with a specific concentration of a divalent

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the method used to study water loss from a leaf in plants?

Options:
A Enclosing a healthy plant in a polythene bag
B Observing the droplets of water formed inside a bag
C Using cobalt chloride paper
D None of the above

The correct answer is:
Using cobalt chloride paper

Solution:
Water loss from a leaf in plants can be studied using cobalt chloride paper, which turns colour on absorbing water.

Topic: Biology, Transport in Plants, NEET
What is the method, which can be used to separate two compounds with different solubilities in a solvent S?

Options:
A Filtration
B Fractional crystallisation
C Boiling
D Extraction

The correct answer is:
Fractional crystallisation

Solution:
Correct Option is : (B)
Fractional crystallisation

Topic: Chemistry, General Organic Chemistry, NEET
What is the midbrain located between in the brain?

Options:
A Forebrain and hindbrain
B Pons and thalamus/hypothalamus
C Pons and cerebral cortex
D Thalamus/hypothalamus and pons

The correct answer is:
Thalamus/hypothalamus and pons

Solution:
The midbrain is located between the thalamus/hypothalamus of the forebrain and pons of the hindbrain.

Topic: Biology, Neural Control and Coordination, NEET
What is the middle layer of an artery and vein?

Options:
A Tunica intima
B Tunica media
C Squamous endothelium
D Tunica externa

The correct answer is:
Tunica media

Solution:
The middle layer of an artery and vein is the tunica media. It is composed of smooth muscle and elastic fibres.

Topic: Biology, Body Fluids and Circulation, NEET
What is the milk produced during the initial few days of lactation called?

Options:
A Parturition
B Gestation
C Colostrum
D Maturation

The correct answer is:
Colostrum

Solution:
The milk produced during the initial few days of lactation is called colostrum.

Topic: Biology, Human Reproduction, NEET
What is the minimal distance z at which a printed page should be held, to ensure that one does not see the individual dots, if the human eye has an approximate angular resolution of φ = 5.8× 10-4rad and a typical photoprinter prints a minimum of 300 dpi (dots per inch, 1 inch = 2.54 cm)?

Options:
A 14.5 cm
B 15.5 cm
C 16.5 cm
D 17.5 cm

The correct answer is:
14.5 cm

Solution:
Correct Option is : (A)
14.5 cm

Topic: Chemistry, Wave Optics, NEET
What is the minimum age for marriageable age for females?

Options:
A 21 years
B 18 years
C 20 years
D 25 years

The correct answer is:
18 years

Solution:
The government has raised the marriageable age for females to 18 years in order to tackle the population growth rate problem.

Topic: Biology, Reproductive Health, NEET
What is the minimum age for marriageable age for males?

Options:
A 18 years
B 21 years
C 20 years
D 25 years

The correct answer is:
21 years

Solution:
The government has raised the marriageable age for males to 21 years in order to tackle the population growth rate problem.

Topic: Biology, Reproductive Health, NEET
What is the minimum concentration of an electrolyte required to cause precipitation of a sol in two hours known as?

Options:
A Flocculating power
B Coagulating value
C Zeta potential
D Electrokinetic potential

The correct answer is:
Coagulating value

Solution:
The paragraph states that the minimum concentration of an electrolyte required to cause precipitation of a sol in two hours is called coagulating value.

Topic: Chemistry, Surface Chemistry, NEET
What is the minimum energy required to eject an electron called ?

Options:
A Threshold energy
B Work function
C Photon energy
D Kinetic energy

The correct answer is:
Work function

Solution:
The minimum energy required to eject an electron is referred to as the work function (W0).

Topic: Chemistry, Structure of Atom, NEET
What is the minimum energy that must be given to a hydrogen atom in the ground state so that it can emit an Hγline in the Balmer series? If the angular momentum of the system is conserved, what would be the angular momentum of such an Hγphoton?

Options:
A 2.50 × 10–34kg m2/s
B 3.18 × 10–34kg m2/s
C 4.20 × 10–34kg m2/s
D 5.01 × 10–34kg m2/s

The correct answer is:
3.18 × 10–34kg m2/s

Solution:
Correct Option is : (B)
3.18 × 10–34kg m2/s

Topic: Chemistry, Atomic Physics, NEET
What is the minimum force required to be applied by the finger to hold a block of mass M against a rough vertical wall, given that the coefficient of friction between the block and the wall is µ and the acceleration due to gravity is g ?

Options:
A F = Mg/µ
B F = Mg + µ
C F = Mg/µ2
D F = Mg - µ

The correct answer is:
F = Mg/µ

Solution:
Correct Option is : (A)
F = Mg/µ

Topic: Chemistry, Laws of Motion, NEET
What is the minimum number of satellites required to be placed in equatorial geostationary orbit around the Earth to ensure that at least one satellite is visible from any point on the equator? [M = 6 × 1024kg, R = 6400 km, T = 24h, G = 6.67 × 10–11SI units]

Options:
A 1
B 2
C 3
D 4

The correct answer is:
3

Solution:
Correct Option is : (C)
3

Topic: Chemistry, Gravitation, NEET
What is the minimum pH required to prevent the precipitation of ZnS in a solution that is 0.01 M ZnCl2 and saturated with 0.10 M H2S ?

[Given Ksp=10â21, Ka1 Ã Ka2=10â20]

Options:
A 0
B 1
C 2
D 4

The correct answer is:
1

Solution:
Ksp=[Zn2+] [S2–]
[S2–]=10–210.01=10–19
for Ka1. Ka2=[H+]2[S2–][H2S]
10–20=[H+]2×10–190.1⇒[H+]=0.1
or pH=1

Topic: Chemistry, Ionic Equilibrium, NEET
What is the minimum pH required to prevent the precipitation of ZnS in a solution that is 0.01M ZnCl2 and saturated with 0.10M H2S ?
[Given Ksp=10-21,Ka1×Ka2=10-20 ]

Options:
A 0
B 1
C 2
D 4

The correct answer is:
1

Solution:
Ksp=Zn2+S2-Keq=[H+]2S2-H2S
10-21=0.01S2-10-20=[H+]210-190.1
S2-=10-19H+=10-1

Topic: Chemistry, Ionic Equilibrium, NEET
What is the minimum pH required to prevent the precipitation of ZnS in a solution which is 0.01 M ZnCl2 and saturated with 0.1 M H2S?
K sp  of  ZnS  =  10 −21 ,  K a 1  ×  K a 2 H 2 S  =  10 −20

Options:
A 4
B 3
C 2
D 1

The correct answer is:
1

Solution:
K sp â=â [Zn 2+ ]âÃâ [S 2â ]
[S2-]=KspZnS[Zn2+]=10-210.01=10-19
KH2S=[H+]2-[S2-][H2S]
10 −20 = [ H + ] 2 ×[ 10 −19 ] 0.1
[H+]=0.1
pHâ=â1

Topic: Chemistry, Ionic Equilibrium, NEET
What is the minimum power delivered by the motor to the elevator, in both watts and horsepower, when an elevator with a maximum load of 1800 kg (elevator + passengers) is moving upward at a constant speed of 2 m/s, and the frictional force opposing the motion is 4000 N?

Options:
A 44000watts, 59 horsepower
B 48000watts, 64.36 horsepower
C 56000 watts, 75.1 horsepower
D 64000 watts, 85.8 horsepower

The correct answer is:
44000watts, 59 horsepower

Solution:
Correct Option is : (A)
44000watts, 59 horsepower

Topic: Chemistry, Work Power Energy, NEET
What is the minimum reading that the weighing machine on the platform would show, if a person normally weighing 50 kg stands on a massless platform which oscillates up and down harmonically at a frequency of 2.0 s–1and an amplitude of 5.0 cm?

Options:
A 50 N
B 70 N
C 90 N
D 110 N

The correct answer is:
90 N

Solution:
Correct Option is : (C)
90 N

Topic: Chemistry, Oscillations, NEET
What is the minimum requirement for any species to survive in nature?

Options:
A One more species on which it can feed
B A large number of small:sized offspring
C A single species in the habitat
D A small number of large:sized offspring

The correct answer is:
One more species on which it can feed

Solution:
For any species, the minimal requirement is one more species on which it can feed.

Topic: Biology, Organisms and Populations, NEET
What is the minimum requirement for each combining atom in Lewis dot structures?

Options:
A To contribute at least one proton to the shared pair
B To contribute at least one neutron to the shared pair
C To contribute at least one electron to the shared pair
D To contribute at least one electron and one proton to the shared pair

The correct answer is:
To contribute at least one electron to the shared pair

Solution:
Each combining atom must contribute at least one electron to the shared pair in Lewis dot structures.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What is the minimum time required for a packet to be launched from a cannon, situated 800m away from the foot of a 500m high hill, to reach the ground on the other side of the hill? The cannon can launch packets at a speed of 125 m/s and can be moved on the ground at a speed of 2 m/s. (Considering g = 10 m/s²)

Options:
A 40 s
B 42 s
C 45 s
D 48 s

The correct answer is:
45 s

Solution:
Correct Option is : (C)
45 s

Topic: Chemistry, Motion In Two Dimensions, NEET
What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can complete the loop?

Options:
A gR
B 2gR
C 3gR
D 5gR

The correct answer is:
5gR

Solution:
Let velocity at the lowest point is "u" and velocity at the top most point is "v"

At highest point mv2R=mg⇒v=gR
now v 2 = u 2 −2g( 2R )⇒ u 2 =5gR
Minimum velocity required is u=5gR

Topic: Physics, Laws of Motion, NEET, NEET 2016 (Phase 1)
What is the minimum volume of water required to dissolve 1g of calcium sulphate at 298 K? (For calcium sulphate, Ksp is 9.1 × 10-6).

Options:
A 2.44 L
B 1.20 L
C 13.0 L
D 1.40 L

The correct answer is:
2.44 L

Solution:
Correct Option is : (A)
2.44 L

Topic: Chemistry, Ionic Equilibrium, NEET
What is the minimum wavelength of X-rays produced by 30 kV electrons?

Options:
A 0.041 nm
B 0.14 nm
C 0.82 nm
D 1.67 nm

The correct answer is:
0.041 nm

Solution:
Correct Option is : (A)
0.041 nm

Topic: Chemistry, Dual Nature of Matter, NEET
What is the missing product?

Options:
A
B
C
D

The correct answer is:

Solution:

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
What is the mixture of reactants and products in the equilibrium state referred to as?

Options:
A Reaction mixture
B Chemical mixture
C Equilibrium mixture
D Compound mixture

The correct answer is:
Equilibrium mixture

Solution:
The mixture of reactants and products in the equilibrium state is called an equilibrium mixture.

Topic: Chemistry, Chemical Equilibrium, NEET
What is the mode of action of antimicrobial drugs?

Options:
A Antimicrobial drugs primarily stimulate the immune system to fight infections.
B Antimicrobial drugs can kill microorganisms such as bacteria, virus, fungi or other parasites. They can, alternatively, inhibit the pathogenic action of microbes.
C Antimicrobial drugs block the action of specific enzymes in viruses.
D Antimicrobial drugs kill bacteria by disrupting their cell walls.

The correct answer is:
Antimicrobial drugs can kill microorganisms such as bacteria, virus, fungi or other parasites. They can, alternatively, inhibit the pathogenic action of microbes.

Solution:
Correct Option is : (B)
Antimicrobial drugs can kill microorganisms such as bacteria, virus, fungi or other parasites. They can, alternatively, inhibit the pathogenic action of microbes.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What is the mode of action of progestogens or progestogen:estrogen combinations?

Options:
A Increases phagocytosis of sperms
B Suppresses sperm motility and fertilizing capacity of sperms
C Inhibits ovulation and implantation
D Makes the uterus and cervix suitable for sperms

The correct answer is:
Inhibits ovulation and implantation

Solution:
The mode of action of progestogens or progestogen:estrogen combinations is similar to that of pills and they inhibit ovulation and implantation and alter the quality of cervical mucus to prevent entry of sperms.

Topic: Biology, Reproductive Health, NEET
What is the mode of administration of the contraceptive method known as the pills?

Options:
A Injection
B Implant under the skin
C Oral
D IUD insertion in uterus

The correct answer is:
Oral

Solution:
The pills are taken in oral form as tablets and have to be taken daily.

Topic: Biology, Reproductive Health, NEET
What is the mode of fertilization in Aschelminthes?

Options:
A External
B Internal
C Boh External and Internal
D None of the above

The correct answer is:
Internal

Solution:
Fertilization is internal in Aschelminthes.

Topic: Biology, Animal Kingdom, NEET
What is the mode of inheritance for Phenylketonuria?

Options:
A Autosomal dominant
B Sex:linked dominant
C Autosomal recessive
D Sex:linked recessive

The correct answer is:
Autosomal recessive

Solution:
Phenylketonuria is an autosomal recessive disorder, where affected individuals lack an enzyme that converts the amino acid phenylalanine into tyrosine.

Topic: Biology, Principles of Inheritance and Variation, NEET
What is the mode of nutrition of bacteria included in Kingdom Monera?

Options:
A Autotrophic
B Heterotrophic
C Saprophytic
D Both A) and B)

The correct answer is:
Both A) and B)

Solution:
In the five Kingdom classification, bacteria are included in Kingdom Monera. Bacteria may be autotrophic or heterotrophic in their mode of nutrition.

Topic: Biology, Biological Classification, NEET