datavorous/entrance-exam-dataset huggingface dataset:
Which region has the greatest biodiversity on earth?

Options:
A New York at 41° N
B Greenland at 71° N
C Amazonian rainforest in South America
D Equador forest in a tropical region

The correct answer is:
Amazonian rainforest in South America

Solution:
The largely tropical Amazonian rain forest in South America has the greatest biodiversity on earth: it is home to more than 40,000 species of plants, 3,000 of fishes, 1,300 of birds, 427 of mammals, 427 of amphibians, 378 of reptiles, and more than 1,25,000 invertebrates. Scientists estimate that in these rain forests, there might be at least two million insect species waiting to be discovered and named.

Topic: Biology, Biodiversity and its Conservation, NEET
Which region of the adrenal gland is responsible for the secretion of catecholamines?

Options:
A zona glomerulosa
B zona reticularis
C medulla
D zona fasciculata

The correct answer is:
medulla

Solution:
The adrenal medulla secretes two hormones called adrenaline or epinephrine and noradrenaline or norepinephrine. These are commonly called as catecholamines. Adrenaline and noradrenaline are rapidly secreted in response to stress of any kind and during emergency situations and are called emergency hormones or hormones of Fight or Flight. These hormones increase alertness, pupilary dilation, piloerection (raising of hairs), sweating etc. Both the hormones increase the heart beat, the strength of heart contraction and the rate of respiration. Catecholamines also stimulate the breakdown of glycogen resulting in an increased concentration of glucose in blood. In addition, they also stimulate the breakdown of lipids and proteins.

Topic: Biology, Chemical Coordination and Integration, NEET
Which region of the atmosphere is characterized by strong air movement and cloud formation?

Options:
A Troposphere
B Stratosphere
C Mesosphere
D Thermosphere

The correct answer is:
Troposphere

Solution:
The troposphere is a turbulent zone containing air, water vapor, and clouds. It is the region of strong air movement and cloud formation.

Topic: Chemistry, Environmental Chemistry, NEET
Which region of the electromagnetic spectrum does the radiation emitted during flame tests fall into?

Options:
A Infrared
B Ultraviolet
C Visible
D X-ray

The correct answer is:
Visible

Solution:
The radiation emitted during flame tests falls into the visible region of the electromagnetic spectrum, which is the region of light that is visible to the human eye.

Topic: Chemistry, s Block Elements, NEET
Which region of the vertebral column has the largest number of vertebrae?

Options:
A Cervical
B Thoracic
C Lumbar
D Sacral

The correct answer is:
Thoracic

Solution:
The vertebral column is differentiated into cervical (7), thoracic (12), lumbar (5), sacral (1-fused) and coccygeal (1-fused) regions.

Topic: Biology, Locomotion and Movement, NEET
Which represents alkali metals based on relative (IE)1 and (IE)2 values?

Options:
A
B
C
D

The correct answer is:

Solution:
M+ (alkali metal ion) has inert gas configuration. Thus, after M+ is formed from M (by (IE)1), further ionisation to M2+ from M+ (by (IE)2) requires very high energy.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
Which resonance structure is considered more stable among multiple resonance structures?

Options:
A The one with more number of covalent bonds
B The one with fewer covalent bonds
C The one with more hydrogen atoms
D The one with fewer carbon atoms

The correct answer is:
The one with more number of covalent bonds

Solution:
Among resonance structures, the one with more covalent bonds, all the atoms with octets (except hydrogen), less separation of opposite charges, and more dispersal of charge is more stable.

Topic: Chemistry, General Organic Chemistry, NEET
Which response given the correct coordination number (C.N.) and oxidation number (O.N.) of the transition metal atom in [Co(NH3)2(H2O)2Cl2]+ ?

Options:
A C.N. = 3; O.N. = +1
B C.N. = 4; O.N. = +2
C C.N. = 6; O.N. = +1
D C.N. = 6; O.N. = +3

The correct answer is:
C.N. = 6; O.N. = +3

Solution:
Coordination number of the central is equal the number of sigma bonds formed by the ligands with the central metal atom. Since all the ligands are monoderate (or unidentate), therefore, the coordination number is equal to the number of ligands surrounding the central metal. Here the C.N. = 6.
Let x= O.N. (or oxidation number) of central Co ion.
x+1(0)+2(0)+2(-1)=+1
or x=+3

Topic: Chemistry, Coordination Compounds, NEET
Which revolution is being implemented in line with the Fishery Industry?

Options:
A Red Revolution
B Green Revolution
C Blue Revolution
D White Revolution

The correct answer is:
Blue Revolution

Solution:
We now talk about ‘Blue Revolution’ as being implemented along the same lines as ‘Green Revolution’.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Which root will form a new plant naturally?

Options:
A Sweet potato
B Dahlia
C Both a and b
D Azadirachta

The correct answer is:
Both a and b

Solution:
Vegetative propagation is also called asexual reproduction in which plant propagates through vegetative parts. It occurs due to the presence of meristematic tissue in root, stem, and leaves that helps in the development of adventitious roots that make new plants. In some plants, there are fleshy roots that are present which is known as root tuber. These tuber bear buds develop into new plants in moist soil. Example: Asparagus, sweet potato, dahlia, yam, etc.

Topic: Biology, Morphology of Flowering Plants, NEET
Which rule dictates the regioselectivity of the addition reaction of unsymmetrical alkenes in acid-catalysed hydration?

Options:
A Hammond's Postulate
B Markovnikov's Rule
C Zaitsev's Rule
D Le Chatelier's Principle

The correct answer is:
Markovnikov's Rule

Solution:
Unsymmetrical alkenes follow Markovnikov's Rule, which dictates the regioselectivity of the addition reaction in acid-catalysed hydration.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
Which rule governs the regioselectivity of the addition of water to alkenes in the presence of concentrated sulphuric acid?

Options:
A Zaitsev's Rule
B Markovnikov's Rule
C Baldwin's Rules
D Hofmann's Rule

The correct answer is:
Markovnikov's Rule

Solution:
The addition of water to alkenes in the presence of concentrated sulfuric acid follows Markovnikov's Rule, which states that the hydrogen atom of H2O adds to the carbon atom with more hydrogen substituents.

Topic: Chemistry, Hydrocarbons, NEET
Which rule is associated with the maximum multiplicity of electrons in orbitals?

Options:
A Aufbau principle
B Bohr's rule
C Hund's rule
D Pauli's rule

The correct answer is:
Hund's rule

Solution:
TheHund's rule of maximum multiplicity in the context of the filling of electrons in orbitals.

Topic: Chemistry, Structure of Atom, NEET
Which rule is followed when concentrated sulphuric acid is added to alkenes, resulting in the formation of alkyl hydrogen sulfate?

Options:
A Walden's rule
B Markovnikov's rule
C Le Chatelier's principle
D Avogadro's law

The correct answer is:
Markovnikov's rule

Solution:
Concentrated sulphuric acid adds to alkenes following Markovnikov's rule, where the hydrogen atom attaches to the carbon with more hydrogen substituents.

Topic: Chemistry, Hydrocarbons, NEET
Which rule is used for listing ligands in the nomenclature of coordination compounds?

Options:
A Ligands with the highest charge are listed first.
B Ligands are listed in order of size.
C Ligands are listed in order of complexity.
D Ligands are listed in alphabetical order.

The correct answer is:
Ligands are listed in alphabetical order.

Solution:
Ligands are listed in alphabetical order when naming coordination compounds.

Topic: Chemistry, Coordination Compounds, NEET
Which salt is an acid salt?

Options:
A Na2SO4
B BiOCl
C Pb(OH)Cl
D Na2HPO4

The correct answer is:
Na2HPO4

Solution:
Here Na2HPO4 is an acid salt
Na2HPO4→2Na++HPO42-
HPO42-→H2OH3O++PO33-

Topic: Chemistry, Ionic Equilibrium, NEET
Which salts result in neutral solutions when dissolved in water?

Options:
A Salts formed from strong acids and strong bases
B Salts formed from strong acids and weak bases
C Salts formed from weak acids and strong bases
D Salts formed from weak acids and weak bases

The correct answer is:
Salts formed from strong acids and strong bases

Solution:
Salts formed from strong acids and strong bases result in neutral solutions when dissolved in water, with a pH of 7.

Topic: Chemistry, Ionic Equilibrium, NEET
Which sample, A or B shown in Fig. 13.2, has a shorter mean-life?

Options:
A Sample A
B Sample B
C Both have the same mean-life
D Insufficient information provided

The correct answer is:
Sample B

Solution:
Correct Option is : (B)
Sample B

Topic: Chemistry, Nuclear Physics, NEET
Which scale of electronegativity is the most widely used?

Options:
A Mulliken-Jaffe scale
B Allred-Rochow scale
C Pauling scale
D Mayr scale

The correct answer is:
Pauling scale

Solution:
The most widely used scale of electronegativity is the Pauling scale.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
Which scientist conducted an experiment with ${ }^{32} \mathrm{P}$ and ${ }^{35} \mathrm{~S}$ labelled phages for demonstrating that DNA is the genetic material?

Options:
A F. Griffith
B O.T. Avery, C.M. MacLeod and M. McCarty
C James D. Watson and F.H.C. Crick
D A.D. Hershey and M.J. Chase

The correct answer is:
A.D. Hershey and M.J. Chase

Solution:
DNA is the genetic material was unequivocally proved from Hershey-Chase experiment.
They conducted an experiment with ${ }^{32} \mathrm{P}$ and ${ }^{35} \mathrm{~S}$ labelled phages for demonstrating that DNA is genetic material.

Topic: Biology, Molecular Basis of Inheritance, NEET, NEET 2023 (Manipur)
Which scientist described the quantitative aspects of electrolysis?

Options:
A Michael Faraday
B Albert Einstein
C Isaac Newton
D Marie Curie

The correct answer is:
Michael Faraday

Solution:
Michael Faraday was the scientist who described the quantitative aspects of electrolysis.

Topic: Chemistry, Electrochemistry, NEET
Which scientist experimentally proved that DNA is the sole genetic material in bacteriophage?

Options:
A Beadle and Tatum
B Meselson and Stahl
C Hershey and Chase
D Jacob and Monod

The correct answer is:
Hershey and Chase

Solution:
Alfred Hershey and Martha Chase (1952) experimentally proved that DNA is the sole genetic material in bacteriophage.
On the other hand, Beadle and Tatum (1940s) experimentally showed one gene-one enzyme hypothesis using Neurospora. Meselson and Stahl first showed that DNA replicates semiconservatively through experiments on E.coli. Jacob and Monod were first to explain lac operon.

Topic: Biology, Molecular Basis of Inheritance, NEET, NEET 2019 (Odisha)
Which scientist is known for the proposal of benzene's oscillating double bond concept?

Options:
A Robert H. Grubbs
B Gilbert N. Lewis
C August Kekulé
D Linus Pauling

The correct answer is:
August Kekulé

Solution:
August Kekulé is known for proposing the concept of the oscillating double bonds in benzene to address its unique reactivity and stability.

Topic: Chemistry, Hydrocarbons, NEET
Which scientist observed a change in the length of the repeating pattern of element properties?

Options:
A A.E.B. de Chancourtois
B John Alexander Newlands
C Lothar Meyer
D Dmitri Mendeleev

The correct answer is:
Lothar Meyer

Solution:
Lothar Meyer observed a change in the length of the repeating pattern of element properties.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
Which scientists were the first to provide a logical explanation of valence?

Options:
A Ernest Rutherford and Niels Bohr
B Marie Curie and Albert Einstein
C Kössel and Lewis
D Dmitri Mendeleev and Antoine Lavoisier

The correct answer is:
Kössel and Lewis

Solution:
Kössel and Lewis were the first to provide a logical explanation of valence.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which scientist/worker is not matched correctly with its work/contribution?

Options:
A Oparin and Haldane - Given most acceptable theory for origin of life.
B Charles Darwin - Given most acceptable theory for evolution of life.
C Thomas Malthus - He has written Assay on population.
D Hugo de Vries - Gave the theory of germplasm.

The correct answer is:
Hugo de Vries - Gave the theory of germplasm.

Solution:
Mutation theory (given by Hugo deVries)
Based on his work on Evening primrose (first decade of 20th century).
Mutations can suddenly cause large variations in a population.
Mutations were random and directionless.
According to Hugo de Vries, evolution (or speciation) is caused by mutation so he gave term to it - saltation (single step large mutation).

Topic: Biology, Evolution, NEET
Which season in Antarctica experiences the formation of polar stratospheric clouds?

Options:
A Spring
B Summer
C Winter
D Autumn

The correct answer is:
Winter

Solution:
Polar stratospheric clouds are formed over Antarctica during the winter season.

Topic: Chemistry, Environmental Chemistry, NEET
Which segment of the renal system allows the passage of small amounts of urea?

Options:
A Henle's loop
B Vasa recta
C Collecting tubule
D Proximal Convoluted Tubule

The correct answer is:
Henle's loop

Solution:
Small amounts of urea enter the thin segment of the ascending limb of Henle's loop which is transported back to the interstitium by the collecting tubule.

Topic: Biology, Excretory Products and their Elimination, NEET
Which series experiences a greater contraction—lanthanoids or actinoids?

Options:
A Lanthanoids
B Actinoids
C Both experience the same contraction.
D none

The correct answer is:
Actinoids

Solution:
The actinoid contraction is greater from element to element compared to the lanthanoid contraction.

Topic: Chemistry, d and f Block Elements, NEET
Which series has n1 = 4 and n2 = 5,6,7,8…..?

Options:
A Balmer
B Paschen
C Brackett
D Pfund

The correct answer is:
Brackett

Solution:
Correct Option is : 3
Brackett

Topic: Chemistry, Structure of Atom, NEET
Which series of elements have nearly the same atomic radii?

Options:
A Fe, Co, Ni
B Na, K, Rb
C Li, Be, Mg
D F,Cl, Br

The correct answer is:
Fe, Co, Ni

Solution:
Because the effect of increase in nuclear charge balances the effect of electronic repulsions.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
Which series of elements is characterized by the filling of f-orbitals?

Options:
A Lanthanoids
B Actinoids
C Transition Elements
D Noble Gases

The correct answer is:
Actinoids

Solution:
The Actinoid series is characterized by the filling of f-orbitals.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
Which series of elements is known as the 4f-inner transition series?

Options:
A Lanthanoid series
B Actinoid series
C Noble gas series
D Transition metal series

The correct answer is:
Lanthanoid series

Solution:
The 4f-inner transition series as the lanthanoid series.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
Which series of halides is more covalent: trihalides or pentahalides?

Options:
A Trihalides
B Pentahalides
C They have the same covalency
D It varies depending on the element

The correct answer is:
Pentahalides

Solution:
Pentahalides are more covalent than trihalides because pentahalides involve +5 oxidation state, which results in higher polarizing power and increased covalent character.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Which series of transition metals includes elements from La to Hg?

Options:
A 3d series
B 4d series
C 5d series
D 6d series

The correct answer is:
5d series

Solution:
The 5d series of transition metals includes elements from La to Hg.

Topic: Chemistry, d and f Block Elements, NEET
Which set of animals are included under protochordates?

Options:
A Salpa, Doliolum, âBranchiostoma
B Ascidia, Lancelet, Hag fish
C Doliolum, Balanoglossus, Saccoglossus
D Aplysia, Salpa, Amphioxous

The correct answer is:
Salpa, Doliolum, âBranchiostoma

Solution:
Subphyla Urochordata and Cephalochordata are often referred to as protochordates and are exclusively marine. In Urochordata, the notochord is present only in larval tail, whereas in Cephalochordata, it extends from head to tail region and is persistent throughout their life.
Examples:
Urochordata: Ascidia, Salpa, Doliolum;
Cephalochordata: Branchiostoma (Amphioxus or Lancelet).

Topic: Biology, Animal Kingdom, NEET
Which set of animals belongs to the same phylum?

Options:
A Meandrina, Beroe
B Planaria, Ascaris
C Cattle fish, Tusk shell
D Silver fish, Dog fish

The correct answer is:
Cattle fish, Tusk shell

Solution:
Meandrina - Cnidaria, Beroe - Ctenophora, Planaria - Platyhelminthes, Ascaris - Aschelminthes,
Cattle fish - Mollusca, Tusk shell - Mollusca, Silver fish - Arthropoda, Dog fish - Chordata.

Topic: Biology, Animal Kingdom, NEET
Which set of animals belongs to the same phylum?

Options:
A Hirudinaria and Laccifer
B Pila and Loligo
C Obelia and Euspongia
D Ophiura and Salpa

The correct answer is:
Pila and Loligo

Solution:
Hirudinaria - Phylum Annelida and Laccifer - Phylum Arthropoda
Pila - Phylum Mollusca and Loligo - Phylum Mollusca
Obelia - Phylum Cnidaria and Euspongia - Phylum Porifera
Ophiura - Phylum Echinodermata and Salpa - Phylum Chordata

Topic: Biology, Animal Kingdom, NEET
Which set of animals doesn't belong to the same phylum?

Options:
A Roundworm, Hookworm, Filarial worm
B Earthworm, Leech, Nereis
C Sea fan, Sea pen, Brain coral
D Devil fish, King crab, Chiton

The correct answer is:
Devil fish, King crab, Chiton

Solution:
Devil fish or Octopus and Chiton are molluscs while King crab is an arthropod.
Roundworm, Hookworm, Filarial worm - Phylum Platyhelminthes.
Earthworm, Leech, Nereis - Phylum Annelida.
Seafan, Sea pen, Brain coral - Phylum Cnidaria.

Topic: Biology, Animal Kingdom, NEET
Which set of animals is ureotelic?

Options:
A Aquatic amphibians and insects
B Bony fishes and insects
C Bony fishes and mammals
D Mammals and terrestrial amphibians

The correct answer is:
Mammals and terrestrial amphibians

Solution:
Ammonotelic animals: Many bony fishes, aquatic amphibians and aquatic insects.
Ureotelic animals: Marine fishes, many terrestrial amphibians and mammals.
Uricotelic animals: Insects, land snails, reptiles and birds.

Topic: Biology, Excretory Products and their Elimination, NEET
Which set of cells in our body exhibit amoeboid movement?

Options:
A RBC but not lymphocytes
B RBC and lymphocytes
C Macrophages but not leucocytes
D Leucocytes and macrophages

The correct answer is:
Leucocytes and macrophages

Solution:
Amoeboid movement.
- It is effected by pseudopodia formed by the streaming of protoplasm.
- Cytoskeletal elements (e.g. microfilaments) also participate
Example : Movement of macrophages and leucocytes.

Topic: Biology, Locomotion and Movement, NEET
Which set of chemical reactions correctly represents the extraction of zinc from zinc blende (ZnS)?

Options:
A ZnS + 2O 2 → 2ZnO + 2SO 2 ZnO + C → Zn + CO
B ZnS + 3O 2 → ZnSO 4 ZnSO 4 → ZnO + SO 2
C ZnS + 2O 2 → 2ZnO + 2SO 2 2ZnO + C → 2Zn + CO 2
D ZnS + 3O 2 → ZnSO 4 ZnSO 4 → ZnO + SO 3

The correct answer is:
ZnS + 2O 2 → 2ZnO + 2SO 2 2ZnO + C → 2Zn + CO 2

Solution:
Correct Option is : (C)
ZnS + 2O 2 → 2ZnO + 2SO 2 2ZnO + C → 2Zn + CO 2

Topic: Chemistry, General Principles and Processes of Isolation of Metals, NEET
Which set of colours will come out in air for a situation shown in figure?

Options:
A Orange, Red and Violet
B Blue, Green and Yellow
C Yellow, Orange and Red
D All

The correct answer is:
Yellow, Orange and Red

Solution:
We know,
$\sin i_C=\frac{1}{\mu}$
Also $\mu \propto \frac{1}{\lambda}$
Thus $\sin i_c \propto \lambda$
Therefore, for higher value of $\lambda$ critical angle will be more Hence Yellow, Orange and Red will come out to air.

Topic: Physics, Ray Optics, NEET, NEET 2023 (Manipur)
Which set of contraceptives have similar mechanism of action?

Options:
A Cu-7, Vaults
B Cu-T, Multiload-375
C Cervical caps, Saheli
D LNG-20, Condoms

The correct answer is:
Cu-T, Multiload-375

Solution:
Types of IUDs :
1. Non-medicated IUDs - Lippes loop.
2. Copper releasing IUDs - CuT, Cu7, Multiload 375.
3. Hormone releasing IUDs - Progestasert, LNG-20.

Topic: Biology, Reproductive Health, NEET
Which set of drugs are obtained from Papaver somniferum?

Options:
A Morphine, Marijuana
B Hashish, Ganja
C Heroin, Morphine
D Charas, Bhang

The correct answer is:
Heroin, Morphine

Solution:
The majority of abused drugs are opioids obtained from Papaver somniferum e.g. Morphine (very effective sedative and painkiller in patients undergone surgery) and Heroin (or smack - white, odourless and bitter crystalline compound, chemically diacetylmorphine).

Topic: Biology, Human Health and Diseases, NEET
Which set of drugs is incorrectly matched with its group?

Options:
A Opioids - Morphine, Heroin
B Coca alkaloids - Cocaine
C Cannabinoids - Barbiturates, LSD
D Stimulants - Caffeine, Cocaine.

The correct answer is:
Cannabinoids - Barbiturates, LSD

Solution:
Cannabinoids include - Bhang, Hashish, Ganja, Bhang and Charas.
Cannabinoids are a group of chemicals, which interact with cannabinoid receptors present principally in the brain. Natural cannabinoids are obtained from the inflorescences of the plant Cannabis sativa. The flower tops, leaves and the resin of cannabis plant are used in various combinations to produce marijuana, hashish, charas and ganja. Generally taken by inhalation and oral ingestion, these are known for their effects on cardiovascular system of the body.

Topic: Biology, Human Health and Diseases, NEET
Which set of evolutionary stages of human were discovered before ape-man?

Options:
A Dryopithecus, Ramapithecus
B Java man, Australopithecus
C Australopithecus, Handy man
D Kenyapithecus, Heidelberg man

The correct answer is:
Dryopithecus, Ramapithecus

Solution:
Evolutionary stages of human: Dryopithecus and Ramapithecus (approximately 15 mya), Australopithecines (2 mya), Homo habilis, Homo erectus (1.5 mya), Neanderthal man (1,00,000–40,000 years ago) and Homo sapiens.

Topic: Biology, Evolution, NEET
Which set of examples belongs to the same phylum?

Options:
A Sepia and Laccifer
B Corallium and Leucosolenia
C Ancylostoma and Enterobius
D Balanoglossus and Corvus

The correct answer is:
Ancylostoma and Enterobius

Solution:
Ancylostoma is a genus of roundworms, which includes some species of hookworms. They are known to be parasitic in nature. Enterobius is commonly known as the human pinworm due to the long pointed tail of the females. It is a parasitic worm and commonly found in the human gut.
Both of these roundworms belong to the phylum Nematoda or Nemathelminthes or Aschelminthes.
Corallium belongs to the phylum Cnidaria, Leucopenia belongs to phylum Porifera. Sepia and Laccifera belong to Mollusca and Arthropoda phylum, respectively. Balanoglossus and Corvus belong to Hemichordata and Chordata.

Topic: Biology, Animal Kingdom, NEET
Which set of factors can move the oxygen dissociation curve towards the right?

Options:
A High Temperature and High pH
B Low pO2 and Low pH
C High pO2 and Low pH
D Low pCO2 and High pH

The correct answer is:
Low pO2 and Low pH

Solution:
According to Bohr's effect, the factors which favours the dissociation of oxyhaemoglobin to release oxygen at the tissue level and to shift the ODC into right side are: Low pO2 , High pCO2 , High H+ (Low pH ) and High Temperature.

Topic: Biology, Breathing and Exchange of Gases, NEET