datavorous/entrance-exam-dataset huggingface dataset:
Which of the following is a common side reaction in the Friedel-Crafts alkylation of benzene?

Options:
A Hydrolysis of the alkyl halide
B Elimination reaction
C Radical chain reaction
D Formation of an ionic bond

The correct answer is:
Elimination reaction

Solution:
A common side reaction in the Friedel-Crafts alkylation of benzene is the elimination reaction, leading to the formation of double bonds in the products.

Topic: Chemistry, Hydrocarbons, NEET
Which of the following is a common support material used for catalysts in the aromatization or reforming reaction for n-alkanes?

Options:
A Silica gel
B Activated carbon
C Alumina
D Calcium oxide

The correct answer is:
Alumina

Solution:
Alumina is a common support material used for catalysts in the aromatization or reforming reaction for n-alkanes.

Topic: Chemistry, Hydrocarbons, NEET
Which of the following is a common trade name for fibers made from polyacrylonitrile?

Options:
A Nylon
B Polyester
C Orlon
D Rayon

The correct answer is:
Orlon

Solution:
Orlon is a common trade name for fibers made from polyacrylonitrile (PAN).

Topic: Chemistry, Polymers, NEET
Which of the following is a π- complex

Options:
A Trimethyl aluminium
B Ferrocene
C Diethyl zinc
D Nickel carbonyl

The correct answer is:
Ferrocene

Solution:
The complexes, in which, the metal and ligand form a bond that involves the π- electrons of the ligand are know as π- complexes e.g. Ferrocene
Fe(η5-C5H5)2,
zeise’s salt K[PtCl3(η2-C2H4)] .

Topic: Chemistry, Coordination Compounds, NEET
Which of the following is a consequence of lanthanoid contraction?

Options:
A An increase in atomic size as you move from top to bottom within the lanthanide series.
B The size of the atom of the third transition series is approximately similar to that of the atom of the second transition series
C The similarity in chemical properties between lanthanides and transition metals.
D The irregular electronic configuration of f-orbitals in the lanthanide series.

The correct answer is:
The size of the atom of the third transition series is approximately similar to that of the atom of the second transition series

Solution:
Correct Option is : (B)
The size of the atom of the third transition series is approximately similar to that of the atom of the second transition series

Topic: Chemistry, d and f Block Elements, NEET
Which of the following is a copper-containing protein acting as a mobile electron carrier in thylakoid membrane?

Options:
A Plastocyanin
B Plastoquinone
C Pheophytin
D Cytochrome b6

The correct answer is:
Plastocyanin

Solution:
Plastocyanin is a copper-containing protein involved in electron-transfer. In photosynthesis, plastocyanin functions as an electron transfer agent between cytochrome f of the cytochrome b6f complex from photosystem II and P700 from photosystem I. Cytochrome b6f complex and P700 are both membrane-bound proteins with exposed residues on the lumen-side of the thylakoid membrane of chloroplasts. Cytochrome f acts as an electron donor while P700 accepts electrons from reduced plastocyanin.

Topic: Biology, Photosynthesis in Higher Plants, NEET
Which of the following is a copper-containing protein acting as a mobile electron carrier?

Options:
A Plastocyanin
B Plastoquinone
C Phaeophytin
D Cytochrome

The correct answer is:
Plastocyanin

Solution:
Plastocyanin is a copper-containing mobile electron carrier protein that mediates electron-transfer. It is a protein that participates in the process of photosynthesis. The protein belongs to a family of intensely blue-colored metalloproteins.

Topic: Biology, Respiration in Plants, NEET
Which of the following is a correct match?

Options:
A Down syndrome $=21^{\text {st }}$ chromosome
B Sickle cell anaemia $=\mathrm{X}$ chromosome
C Haemophilia = Y chromosome
D Parkinson disease $=\mathrm{X}$ and $\mathrm{Y}$ chromosomes

The correct answer is:
Down syndrome $=21^{\text {st }}$ chromosome

Solution:
Down syndrome $=$ trisomy of $21^{\text {st }}$ chromosome
Sickle cell anaemia $=$ autosomal recessive disorder, due to the mutation in $\beta$-globin gene of haemoglobin, on chromosome 11
Haemophilia $=$ Sex linked recessive disease, caused due to deficiency of clotting factor VII or IX
Parkinson Disease $=$ caused by a loss of nerve cells in the part of the brain, that produce neurotransmitter dopamine

Topic: Biology, Principles of Inheritance and Variation, NEET, NEET 2002
Which of the following is a correct match between crop, variety and resistance to disease?

Options:
A

Crop	Variety	Resistance to diseases

Wheat	Himgiri	White rust

B

Crop	Variety	Resistance to diseases

Brassica	Pusa sadabahar	Black rot

C

Crop	Variety	Resistance to diseases

Cowpea	Pusa komal	Bacterial blight

D

Crop	Variety	Resistance to diseases

Chilli	Pusa swarnim	Chilly mosaic virus

The correct answer is:

Crop	Variety	Resistance to diseases

Cowpea	Pusa komal	Bacterial blight

Solution:
Crop Variety Resistance to diseases Wheat Himgiri Leaf and stripe rust, hill bunt Brassica Pusa swarnim White rust Cowpea pusa komal Bacterial blight Chilli Pusa sadabahar Chilly mosaic virus

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Which of the following is a correct match between crop, variety and resistance to diseases?

Options:
A

Crops	Variety	Resistance to diseases

Wheat	Himgiri	White rust

B

Crops	Variety	Resistance to diseases

Brassica	Pusa sadabahar	Black rot

C

Crops	Variety	Resistance to diseases

Cowpea	Pusa komal	Bacterial blight

D

Crops	Variety	Resistance to diseases

Chilli	Pusa swarnim	Chilli mosaic virus

The correct answer is:

Crops	Variety	Resistance to diseases

Cowpea	Pusa komal	Bacterial blight

Solution:
Pusa komal is a bacterial blight resistant variety of the cowpea or black-eyed pea crop.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Which of the following is a correct match for disease and its symptoms?

Options:
A Tetany - high Ca2+ level causing rapid spasms.
B Myasthenia gravis - Genetic disorder resulting in weakening and paralysis of skeletal muscle
C Muscular dystrophy - An auto immune disorder causing progressive degeneration of skeletal muscle
D Arthritis - Inflammed joints

The correct answer is:
Arthritis - Inflammed joints

Solution:
In tetanus, there are low calcium levels which cause muscle spams.

Mysatheia gravis is an autoimmune disorder not a genetic disorder,

Muscular dystrophy is a genetic disorder and not an autoimmune disorder. Multiple sclerosis is an autoimmune disorder which also leads to weakening of skeletal muscles of the affected region.

Arthritis is caused due to inflammation of joints.

Topic: Biology, Locomotion and Movement, NEET, NEET 2022 (Phase 1)
Which of the following is a correct match?

Options:
A Darwin, voyage to Galapagos Island on HMS Beagle
B Wallace, voyage to Malay Island on HMS Beagle
C Darwin, voyage to Galapagos Island on HMS Maria
D Leonardo da Vinci, voyage to Madagascar on HMS Beagle

The correct answer is:
Darwin, voyage to Galapagos Island on HMS Beagle

Solution:
Darwin gained fame by publishing his diary journal, best known as "The Voyage of the Beagle", and his findings played a pivotal role in the formation of his scientific theories on evolution and natural selection on Galapagos island.

Topic: Biology, Evolution, NEET
Which of the following is a correct pair?

Options:
A Cuscuta - Parasite
B Dischidia - Insectivorous
C Opuntia - Predator
D Capsella - Hydrophyte

The correct answer is:
Cuscuta - Parasite

Solution:
Cuscuta commonly known as dodder is a parasitic plant. It belongs to order Solanales and family -Convolvulaceae.
Dischidia is an epiphytic plant that grow on supports such as tree trunks or branches.
Opuntia commonly called prickly pear is xerophytic plants, consisting thorns.
Capsella also called as Shepherd's purse is a genus of herbaceous plant and biennial plants in the family Brassicaceae.

Topic: Biology, Morphology of Flowering Plants, NEET, NEET 2002
Which of the following is a correct pair ?

Options:
A Cuscuta - parasite
B Vallisneria - insectivorous
C Opuntia - mesophyte
D Capsella - hydrophyte

The correct answer is:
Cuscuta - parasite

Solution:
Opuntia is a xerophyte growing in arid or semi-arid places. Capsella bursa-pastoris is not hydrophyte it is a mesophyte and known as shepherd's purse. Vallisneria is a hydrophyte and Cuscuta is a complete parasite that forms haustoria.

Topic: Biology, Morphology of Flowering Plants, NEET
Which of the following is a correct plot of the volume of fixed amount of ideal gas as a function of temperature (at constant pressure)

Options:
A
B
C
D

The correct answer is:

Solution:
V∝T at constant pressure and definite mass. The graph of V versus T will be straight line passing through origin i.e., (y = mx) type line.

Topic: Chemistry, States of Matter, NEET
Which of the following is a correct reason for the resemblance between lithium and magnesium in some of their properties?

Options:
A They both have the same number of valence electrons.
B They form insoluble halides in ethanol.
C They share the same period in the periodic table.
D They both have similar atomic and ionic radii and a similar charge-to-radius ratio.

The correct answer is:
They both have similar atomic and ionic radii and a similar charge-to-radius ratio.

Solution:
Correct Option is : (D)
They both have similar atomic and ionic radii and a similar charge-to-radius ratio.

Topic: Chemistry, s Block Elements, NEET
Which of the following is a correct sentence?

Options:
A In gymnosperms endosperm is diploid and in angiosperms it is haploid.
B In gymnosperms endosperm is haploid and in angiosperms it is triploid.
C In gymnosperms endosperm is haploid and in angiosperms it is diploid.
D Endosperm is triploid in both gymnosperm and angiosperms.

The correct answer is:
In gymnosperms endosperm is haploid and in angiosperms it is triploid.

Solution:
In case of gymnosperm, the endosperm is haploid and formed before fertilisation and in case of angiosperm the endosperm is triploid and formed after fertilisation. In angiosperms, two haploid polar nuclei fuse with haploid male gamete forming triploid endosperm.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
Which of the following is a correct sequence of steps in a PCR (Polymerase Chain Reaction)?

Options:
A Denaturation, Annealing, Extension
B Denaturation, Extension, Annealing
C Extension, Denaturation, Annealing
D Annealing, Denaturation, Extension

The correct answer is:
Denaturation, Annealing, Extension

Solution:
PCR stands for Polymerase Chain Reaction. In this reaction, multiple copies of the gene (or DNA) of interest is synthesised in vitro using two sets of primers (small chemically synthesised oligonucleotides that are complementary to the regions of DNA) and the enzyme DNA polymerase.

Each cycle of Polymerase chain reaction (PCR) has three steps: (i) Denaturation; (ii) Primer annealing; and (iii) Extension of primers.

(i) Denaturation, in which double-stranded DNA templates are heated to separate the strands.

(ii) Annealing, in which short DNA molecules called primers bind to flanking regions of the target DNA.

(ii) Extension, in which DNA polymerase extends the 3′ end of each primer along the template strands. These steps are repeated (“cycled”) 25–35 times to exponentially produce exact copies of the target DNA.

Topic: Biology, Biotechnology - Principles and Processes, NEET, NEET 2021
Which of the following is a correct statement?

Options:
A IUDs once inserted need not be replaced
B IUDs are generally inserted by the user herself
C IUDs increase phagocytosis of sperms in the uterus
D IUDs suppress gametogenesis

The correct answer is:
IUDs increase phagocytosis of sperms in the uterus

Solution:
Option (c) is correct as Intrauterine Devices (IUDs) increase phagocytosis of sperms within the uterus and the $\mathrm{Cu}$ ions released suppress sperm motility and fertilising capacity of sperms. Other statements can be corrected as IUDs can be removed as these are a reversible contraception method.
IUDs are inserted by doctors or expert nurses in the uterus through vagina.
IUDs do not affect gametogenesis.

Topic: Biology, Reproductive Health, NEET, NEET 2019 (Odisha)
Which of the following is a correct statement?

Options:
A Bacteria are exclusively heterotrophic organisms.
B Slime moulds are saprophytic organisms classified under Kingdom Monera.
C Mycoplasma have DNA, Ribosome and cell wall.
D Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.

The correct answer is:
Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.

Solution:
Cyanobacteria or BGA are the members of kingdom Monera which show the following characteristic features:

Cell wall is present.

Chlorophyll-a is present and they are photoautotrophic.

Heterocysts are present in some forms for nitrogen fixation.

They lack membrane bound organelles.

Topic: Biology, Biological Classification, NEET, NEET 2022 (Phase 1)
Which of the following is a cyclic oxyacid?

Options:
A H4P2O2
B H2P2O6
C H2P2O15
D H3P3O9

The correct answer is:
H3P3O9

Solution:

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Which of the following is a d3system?

Options:
A Sc3+
B Ti3+
C V2+
D Ni2+

The correct answer is:
V2+

Solution:
Correct Option is : 3
V2+

Topic: Chemistry, d and f Block Elements, NEET
Which of the following is a degradable waste?

Options:
A Plastic bottles
B Paper
C Glass
D Metal cans

The correct answer is:
Paper

Solution:
Paper is a degradable waste material, meaning it can break down naturally over time. In contrast, plastic bottles, glass, and metal cans are non-degradable materials.

Topic: Chemistry, Environmental Chemistry, NEET
Which of the following is a disproportionation reaction?

Options:
A Cl 2 (g) +  2OH − (aq)→ ClO − (aq) +  Cl − (aq) +  H 2 O(l)
B Cl2(g)+2I-(aq)â2Cl-(aq)+I2(s)
C 2 Fe(s) + 3  H 2 O(l) → Δ Fe 2 O 3 (s) + 3  H 2 (g)
D 2H2O(l)+2F2(g)â4HF(aq)+O2(g)

The correct answer is:
Cl 2 (g) +  2OH − (aq)→ ClO − (aq) +  Cl − (aq) +  H 2 O(l)

Solution:
Cl 2 (g) 0  +  2OH − (aq)→ Cl − (aq) +1 +  Cl − (aq) −1 +  H 2 O(l)
Chlorine is simultaneously reduced and oxidised.

Topic: Chemistry, Redox Reactions, NEET
Which of the following is a drug produced by genetic engineering and is used in the treatment of cancer?

Options:
A Alpha-interferon
B Human growth hormone
C Insulin
D Calcitonin

The correct answer is:
Alpha-interferon

Solution:
Interferons are antiviral proteins which are used in the treatment of cancer has been produced by the transgenic organism. The patients are given substances called biological response modifiers such as alpha-interferon which activates their immune system and helps in destroying the tumor.

Topic: Biology, Human Health and Diseases, NEET
Which of the following is a false statement?

Options:
A Halogens are strong oxidizing agents
B Halogens show only (negative) oxidation state
C HF molecules form intermolecular H-bonds
D Fluorine is highly reactive

The correct answer is:
Halogens show only (negative) oxidation state

Solution:
Fluorine, being most electronegative element, always shows the oxidation state of -1.
Other halogens can show higher positive oxidation states in addition to negative oxidation of -1 with more electronegative atoms like F, O, N. Rest other statements are correct.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Which of the following is a family of monocots?

Options:
A Leguminoseae
B Solanaceae
C Liliaceae
D Brassicaceae

The correct answer is:
Liliaceae

Solution:
Family Liliaceae is commonly called Lily family. It is distributed worldwide. It is a Monocot family.

Topic: Biology, Plant Kingdom, NEET
Which of the following is a feature of a bony fish?

Options:
A Placoid scales present
B Gills with operculum
C Habitant of marine water only
D Air bladder absent

The correct answer is:
Gills with operculum

Solution:
Feature	Class Chondrichthyes	Class Osteicthyes

Common name	Cartilagenous fishes	Bony fishes

Endoskeleton	Cartilaginous	Bony

Habitat	Mostly marine	Both marine and fresh water

Gills and gill-cover	Usually 5–7 pairs of gills without operculum (gill cover)	4 pairs of gills covered by operculum

Types of scales	Placoid scales present	Usually cycloid or ctenoid scales present

Air or swim bladder	Absent	Present

Topic: Biology, Animal Kingdom, NEET
Which of the following is a fibrous joint?

Options:
A Saddle joint
B Sutures joint
C Ball and socket joint
D Hinge joint

The correct answer is:
Sutures joint

Solution:
Sutures are type of joint formed in flat skull bones Which fuse end to end with the help of dense fibrous connective tissue to form the cranium .

Topic: Biology, Locomotion and Movement, NEET
Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing micro-organism?

Options:
A Crotalaria juncea
B Cycas revoluta
C Cicer arietinum
D Casuarina equisetifolia.

The correct answer is:
Casuarina equisetifolia.

Solution:
Nitrogen-fixing organisms are found associated with Casuarina equisetifolia. It harbours a $\mathrm{N}_2$-fixing organism Frankia in their roots in the form of nodules.
Related Theory
Casuarina equisetifolia is also known as Austratian pine, ironwood, beefwood, she oak and horsetail tree, which is a deciduous tree with a soft, wispy, pinelike appearance that can grow to 100 feet or more in height. It bears a superficial resemblance to the conifer. genus Pinus because of its small, round, cone like fruits and its branchlets of scale-like leaves that look like pine needles.

Topic: Biology, Mineral Nutrition, NEET, NEET 2007
Which of the following is a free radical substitution reaction?

Options:
A Benzene with Br2/AlCl3
B Acetylene with HBr
C Methane with Br2/hv
D Propene with HBr/C6H5COO2

The correct answer is:
Methane with Br2/hv

Solution:

Topic: Chemistry, Hydrocarbons, NEET, NEET 2020 (Phase 2)
Which of the following is a good adsorbent?

Options:
A Water
B Charcoal
C Oxygen
D Hydrogen

The correct answer is:
Charcoal

Solution:
The paragraph provides examples of materials acting as good adsorbents, including charcoal.

Topic: Chemistry, Surface Chemistry, NEET
Which of the following is a harmful effect caused by alcohol/ drug abuse?

Options:
A adverse effect on the body
B destructive effect on the family
C less interest in eating
D both A and B are correct

The correct answer is:
both A and B are correct

Solution:
The harmful effect caused by alcohol/ drug abuse has adverse effects on the body and destructive effect on the family

Topic: Biology, Human Health and Diseases, NEET
Which of the following is a hazard associated with the handling of dinitrogen gas?

Options:
A Asphyxiation
B Frostbite
C Both A and B
D None of the above

The correct answer is:
Both A and B

Solution:
Dinitrogen gas is a colorless, odorless, and tasteless gas. It is non-toxic and non-flammable. However, it is important to note that dinitrogen gas can displace oxygen from the air, creating a risk of asphyxiation. Additionally, liquid dinitrogen is extremely cold (-195.8 °

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Which of the following is a histopathological examination?

Options:
A Computed tomography
B MRI
C X-rays
D Biopsy

The correct answer is:
Biopsy

Solution:
A biopsy is a medical procedure that involves taking a small sample of tissue so that it can be examined under a microscope. This is one of cancer diagnosing methods most widely used.

Topic: Biology, Human Health and Diseases, NEET
Which of the following is a histopathological examination?

Options:
A Computed tomography
B MRI
C X-rays
D Biopsy

The correct answer is:
Biopsy

Solution:
A biopsy is a medical procedure that involves taking a small sample of tissue so that it can be examined under a microscope.

Topic: Biology, Human Health and Diseases, NEET
Which of the following is a homopolymer?

Options:
A Urea-formaldehyde resin
B Bakelite
C Glyptal
D PVC

The correct answer is:
PVC

Solution:
Correct Option is : 4
PVC

Topic: Chemistry, Polymers, NEET
Which of the following is a hormone responsible for the regulation of blood glucose level?

Options:
A Tetraiodothyronine and triiodothyronine
B Trihydroxyiodothyronine and thymosin
C Aldosterone and calcitonin
D Androgen and FSH

The correct answer is:
Tetraiodothyronine and triiodothyronine

Solution:
The basal metabolic rate (BMR), is determined by two hormones produced by the thyroid gland: thyroxine, also known as tetraiodothyronine or T4, and triiodothyronine, also known as T3. These hormones increases the ATP production with activating the genes involved in energy production and glucose oxidation. This increased rates of metabolism and body heat production is known as the calorigenic effect.

Topic: Biology, Chemical Coordination and Integration, NEET
Which of the following is a hormone-releasing intra-uterine device (IUD)?

Options:
A Multiload-375
B LNG-20
C Cervical cap
D Vault

The correct answer is:
LNG-20

Solution:
Multiload-375 and LNG-20 both are IUDs; LNG-20 is a hormone-releasing device and Multiload-375 is a copper-releasing IUD.
Cervical caps and vaults are contraceptive caps that are fitted tightly inside the cervix to prevent the entry of sperm into the uterus.

Topic: Biology, Reproductive Health, NEET, NEET 2014
Which of the following is a hormone-releasing intra-uterine device (IUD)?

Options:
A Multiload-375
B LNG-20
C Cervical cap
D Vault

The correct answer is:
LNG-20

Solution:
Multiload-375 and LNG-20 both are IUDs; LNG-20 is a hormone-releasing device and Multiload-375 is a copper-releasing IUD.
Cervical caps and vaults are contraceptive caps which are fitted tightly inside the cervix to prevent the entry of sperm into the uterus.

Topic: Biology, Reproductive Health, NEET
Which of the following is a hyperglycemic hormone?

Options:
A Glucagon
B Insulin
C Aldosterone
D Androgen

The correct answer is:
Glucagon

Solution:
Glucagon is a hormone that is produced by alpha cells in a part of the pancreas known as the islets of Langerhans. When glucagon is released it can perform the following tasks :
A. Stimulating the liver to break down glycogen to be released into the blood as glucose
B. Activating gluconeogenesis, the conversion of amino acids into glucose
C. Breaking down stored fat (triglycerides) into fatty acids for use as fuel by cells.

Topic: Biology, Chemical Coordination and Integration, NEET
Which of the following is a hypnotic drug?

Options:
A Luminal
B Salol
C Catechol
D Chemisol

The correct answer is:
Luminal

Solution:
These drugs produce sleep and are habit forming common example of hypnotic drugs are Luminal and Saconal

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which of the following is a hypnotic drug

Options:
A Luminal
B Salol
C Catechol
D paracetamol

The correct answer is:
Luminal

Solution:
These drugs produce sleep and are habit forming common example of hypnotic drugs are Luminal and Saconal.

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which of the following is a key intermediate in the synthesis of phenol from benzene sulphonic acid?

Options:
A Sodium chloride
B Sodium phenyl sulfonate
C Sodium sulphate
D Sodium phenoxide

The correct answer is:
Sodium phenoxide

Solution:
Sodium phenoxide is a crucial intermediate formed during the conversion of benzene sulphonic acid to phenol.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
Which of the following is a key intermediate in the synthesis of phenol from chlorobenzene?

Options:
A Phenylamine
B Phenyl chloride
C Sodium phenoxide
D Phenyl ether

The correct answer is:
Sodium phenoxide

Solution:
Sodium phenoxide is an important intermediate formed during the synthesis of phenol from chlorobenzene.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
Which of the following is a key reagent in the decarboxylation of benzoic acid using soda lime?

Options:
A Sodium chloride
B Calcium carbonate
C Sodium hydroxide
D Soda Lime itself

The correct answer is:
Soda Lime itself

Solution:
Sodalime, which is a mixture of sodium hydroxide and calcium oxide, is the key reagent in the decarboxylation reaction.

Topic: Chemistry, Hydrocarbons, NEET