datavorous/entrance-exam-dataset huggingface dataset:
Ciliates differ from all other protozoan's in

Options:
A Using pseudopodia for capturing prey
B Having a contractile vacuole for removing excess water
C Using flagella for locomotion
D Having two types of nuclei

The correct answer is:
Having two types of nuclei

Solution:
Ciliates differ from all other protozoans in having two types of nuclei. These two nuclei are usually of different sizes, i.e., one is meganucleus and the other is micronucleus. The former controls metabolism whereas the latter is concerned with reproductions, e.g., Paramecium.

In other protozoans, like Amoeba, a single nucleus is present which is involved in metabolism and reproduction. Other options are incorrect because Ciliates use filter-feeding mechanism for obtaining food. Like other protozoans, they also possess contractile vacuoles. Ciliates use cilia for locomotion.

Topic: Biology, Biological Classification, NEET, NEET 2018
Cinnamic acid is formed when C6H5-CHO condenses with (CH3CO)2O in presence of

Options:
A Sodium metal
B Conc. H2SO4
C Sodium acetate
D Anhydrous ZnCl2

The correct answer is:
Sodium acetate

Solution:
C 6 H 5 CHO+ ( CH 3 CO) 2 O →   CH 3 CO 2 Na  C 6 H 5 CH= CHCO 2 H
It is Perkinâs reaction.

Topic: Chemistry, Aldehydes and Ketones, NEET
Cirrhosis of liver is caused by the chronic intake of

Options:
A opium
B alcohol
C tobacco (chewing)
D cocaine

The correct answer is:
alcohol

Solution:
The chronic intake of alcohol may be fatal for the individual. On intake, a part of alcohol is changed to acetaldehyde which causes hangover. Acetaldehyde stimulates formation of fat which is deposited on artery walls (causing coronary ailments) and in the liver (causing fatty liver syndrome). Gradually, the liver hardens and dries up as its cells are replaced by fibrous tissue. This kind of liver degeneration is called liver cirrhosis (Laennec's cirrhosis). Excessive use of alcohol may also lead liver failure, liver cell carcinoma, etc.

Topic: Biology, Human Health and Diseases, NEET, NEET 2012 (Screening)
Cis- and trans-faces are present in

Options:
A Endoplasmic reticulum
B Golgi body
C Ribosomes
D Mitochondria

The correct answer is:
Golgi body

Solution:
Golgi body is the only organelle which shows polarity. Cisternae are disc-like, parallely-placed structures which get curved. Curvature results in formation of concave and convex faces. Convex face is known as cis or forming face, which always lies towards nucleus, and concave or trans or maturing face always lies towards the cell membrane.

Topic: Biology, Cell - The Unit of Life, NEET
Cistron can be defined as:

Options:
A The portion of DNA that codes for a polypeptide
B The sequence of mRNA that codes for a protein
C It is a mature mRNA
D The structural gene found in prokaryotes.

The correct answer is:
The portion of DNA that codes for a polypeptide

Solution:
Gene is a segment of DNA that is responsible for synthesis of a particular type of protein. Gene that codes for a particular protein or enzyme is also called as cistron. It forms the largest element in gene that encodes for a polypeptide gene. mRNA can be monocistronic or polycistronic

Topic: Biology, Molecular Basis of Inheritance, NEET
Citric acid is industrially best produced by:

Options:
A Streptococcus lactis
B Aspergillus niger
C Penicillium purpurogenum
D Lactobacillus

The correct answer is:
Aspergillus niger

Solution:
Aspergillus niger, an ascomycetes fungi is used for commercial production of citric acid. Lactobacillus is used for commercial production of lactic acid.

Topic: Biology, Microbes in Human Welfare, NEET
Citrus canker is a:

Options:
A Bacterial disease
B Fungal disease
C Viral disease
D Prion disease

The correct answer is:
Bacterial disease

Solution:
Citrus canker is a bacterial disease caused by bacteria Xanthomonas citri.

Topic: Biology, Biological Classification, NEET
Citrus canker is caused by

Options:
A Virus
B Bacteria
C Fungus
D Algae

The correct answer is:
Bacteria

Solution:
Some bacteria are pathogens causing damage to human beings, crops, farm animals and pets. Cholera, typhoid, tetanus, citrus canker are well-known diseases caused by different bacteria. Citrus canker is a disease affecting Citrus species and is caused by the bacterium Xanthomonas axonopodis.

Topic: Biology, Biological Classification, NEET
CJD, black stem rust of wheat & potato spindle tuber disease are respectively caused by

Options:
A tobacco mosaic virus, viroid, prions
B prions, Puccinia, viroid
C prions, Ustilago, mycoplasma
D viroid, tobacco mosaic virus, parasitic fungi

The correct answer is:
prions, Puccinia, viroid

Solution:
The most notable diseases caused by prions are bovine spongiform encephalopathy (BSE) commonly called mad cow disease in cattle and its analogous variant CrâJacob disease (CJD) in humans.
In 1971, T.O. Diener discovered a new infectious agent that was smaller than viruses and caused potato spindle tuber disease. It was found to be a free RNA; it lacked the protein coat that is found in viruses, hence the name viroid. The RNA of the viroid was of low molecular weight.
Some fungi cause diseases in plants and animals; wheat rust-causing Puccinia is an important example. They grow in soil, on logs and tree stumps and in living plant bodies as parasites, e.g., rusts and smuts.

Topic: Biology, Biological Classification, NEET
CJD caused by prion proteins is seen in

Options:
A cattle.
B sheep.
C humans.
D All of these

The correct answer is:
humans.

Solution:
Prions: In modern medicine, certain infectious neurological diseases were found to be transmitted by an agent consisting of an abnormally folded protein. The agent was similar in size to viruses. These agents were called prions. The most notable diseases caused by prions are bovine spongiform encephalopathy (BSE) commonly called mad cow disease in cattle and its analogous variant Cr–Jacob disease (CJD) in humans.

Topic: Biology, Biological Classification, NEET
Cl can not make oxoacid in which of the following states?

Options:
A +6
B +5
C +7
D +3

The correct answer is:
+6

Solution:
Correct Option is : 1
+6

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Cl is attached to which hybridized carbon in Benzyl chloride?

Options:
A Sp
B Sp2
C Sp3
D None of the above

The correct answer is:
Sp3

Solution:
Correct Option is : 3
Sp3

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
Classes comprising animals like fishes, amphibians, reptiles, birds along with mammals constitute the next higher category called___.

Options:
A Phylum
B Class
C Family
D Order

The correct answer is:
Phylum

Solution:
Classes comprises animals like fishes, amphibians, reptiles, birds along with mammals constitute the next higher category called Phylum

Topic: Biology, The Living World, NEET
Classification based on chromosome number, structure and behaviour is called

Options:
A Numerical taxonomy
B Cytotaxonomy
C Phylogenetic taxonomy
D Chemotaxonomy

The correct answer is:
Cytotaxonomy

Solution:
Cytotaxonomy that is based on cytological information such as chromosome number, structure, behaviour and chemotaxonomy that uses the chemical constituents of the plant to classify them.

Topic: Biology, Plant Kingdom, NEET
............... classified animals into two groups, those which have red blood and those that did not.

Options:
A Aristotle
B Theophrastus
C Linnaeus
D Whittaker

The correct answer is:
Aristotle

Solution:
Aristotle was the earliest to attempt a scientific basis for classification. He used simple morphological characters to classify plants into trees, shrubs and herbs. He also divided animals into two groups, those which had red blood and those that did not.

Topic: Biology, Biological Classification, NEET
Classify each of the following solids Ammonium phosphate (NH4)3PO4

Options:
A Ionic
B Molecular
C Metallic
D Amorphous

The correct answer is:
Ionic

Solution:
Correct Option is : (A)
Ionic

Topic: Chemistry, Solid State, NEET
Classify each of the following solids Brass

Options:
A Molecular
B Metallic
C Network (covalent)
D Ionic

The correct answer is:
Metallic

Solution:
Correct Option is : (B)
Metallic

Topic: Chemistry, Solid State, NEET
Classify each of the following solids Graphite

Options:
A Ionic
B Network (covalent)
C Metallic
D Molecular

The correct answer is:
Network (covalent)

Solution:
Correct Option is : (B)
Network (covalent)

Topic: Chemistry, Solid State, NEET
Classify each of the following solids I2

Options:
A Amorphous
B Network (covalent)
C Molecular
D Ionic

The correct answer is:
Molecular

Solution:
Correct Option is : (C)
Molecular

Topic: Chemistry, Solid State, NEET
Classify each of the following solids (i) Tetra phosphorus decoxide (P4O10)

Options:
A Molecular
B Ionic
C Amorphous
D Network (covalent)

The correct answer is:
Ionic

Solution:
Correct Option is : (B)
Ionic

Topic: Chemistry, Solid State, NEET
Classify each of the following solids LiBr

Options:
A Ionic
B Molecular
C Network (covalent)
D Amorphous

The correct answer is:
Ionic

Solution:
Correct Option is : (A)
Ionic

Topic: Chemistry, Solid State, NEET
Classify each of the following solids P4

Options:
A Ionic
B Molecular
C Network (covalent)
D Amorphous

The correct answer is:
Molecular

Solution:
Correct Option is : (B)
Molecular

Topic: Chemistry, Solid State, NEET
Classify each of the following solids Plastic

Options:
A Ionic
B Molecular
C Amorphous
D Network (covalent)

The correct answer is:
Amorphous

Solution:
Correct Option is : (C)
Amorphous

Topic: Chemistry, Solid State, NEET
Classify each of the following solids Rb

Options:
A Ionic
B Molecular
C Metallic
D Network (covalent)

The correct answer is:
Metallic

Solution:
Correct Option is : (C)
Metallic

Topic: Chemistry, Solid State, NEET
Classify each of the following solids Si

Options:
A Molecular
B Network (covalent)
C Metallic
D Ionic

The correct answer is:
Network (covalent)

Solution:
Correct Option is : (B)
Network (covalent)

Topic: Chemistry, Solid State, NEET
Classify each of the following solids SiC

Options:
A Ionic
B Network (covalent)
C Metallic
D Molecular

The correct answer is:
Network (covalent)

Solution:
Correct Option is : (B)
Network (covalent)

Topic: Chemistry, Solid State, NEET
Classify enzyme inhibitors on the basis of their mode of attachments on the active site of enzymes.

Options:
A Competitive inhibitors only
B Competitive inhibitors and Non-competitive inhibitors
C Non-competitive inhibitors only
D Such classification is not possible

The correct answer is:
Competitive inhibitors and Non-competitive inhibitors

Solution:
Correct Option is : (B)
Competitive inhibitors and Non-competitive inhibitors

Topic: Chemistry, Chemistry in Everyday Life, NEET
Classify Ge doped with In as either a p-type or an n-type semiconductor.

Options:
A p-type semiconductor
B n-type semiconductor
C can be both n or p type semiconductor
D can not be predicted

The correct answer is:
p-type semiconductor

Solution:
Correct Option is : (A)
p-type semiconductor

Topic: Chemistry, Solid State, NEET
Classify Si doped with B as either a p-type or an n-type semiconductor.

Options:
A p-type semiconductor
B n-type semiconductor
C can be both n or p type semiconductor
D can not be predicted

The correct answer is:
p-type semiconductor

Solution:
Correct Option is : (A)
p-type semiconductor

Topic: Chemistry, Solid State, NEET
Classify the detergents according to their chemical nature.

Options:
A Anionic, Cationic and Non-ionic detergents
B Anionic detergents only
C Cationic and Anionic detergents only
D Non-ionic detergents only

The correct answer is:
Anionic, Cationic and Non-ionic detergents

Solution:
Correct Option is : (A)
Anionic, Cationic and Non-ionic detergents

Topic: Chemistry, Chemistry in Everyday Life, NEET
Classify the following as addition and condensation polymers: Terylene, Bakelite, Polythene, and Teflon.

Options:
A Condensation polymers-Polyvinyl chloride, Polythene; Addition polymers-Terylene,Bakelite
B Addition polymers-Polyvinyl chloride, Bakelite ; Condensation polymers-Terylene,Polythene
C Addition polymers-Bakelite, Polythene ;Condensation polymers-Terylene, Polyvinyl chloride
D Addition polymers-Polyvinyl chloride, Polythene; Condensation polymers-Terylene, Bakelite

The correct answer is:
Addition polymers-Polyvinyl chloride, Polythene; Condensation polymers-Terylene, Bakelite

Solution:
Correct Option is : (D)
Addition polymers-Polyvinyl chloride, Polythene; Condensation polymers-Terylene, Bakelite

Topic: Chemistry, Polymers, NEET
Classify the following as amorphous or crystalline solids Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.

Options:
A Amorphous Polyurethane, teflon, cellophane, polyvinyl chloride, fibre glass; Crystalline Naphthalene, benzoic acid, potassium nitrate, copper.
B Amorphous Naphthalene, benzoic acid, teflon, cellophane, polyvinyl chloride, fibre glass; Crystalline Polyurethane, potassium nitrate, copper.
C Amorphous Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass; Crystalline Copper.
D Amorphous Polyurethane, naphthalene, benzoic acid, teflon, cellophane, polyvinyl chloride; Crystalline Potassium nitrate, fibre glass, copper.

The correct answer is:
Amorphous Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass; Crystalline Copper.

Solution:
Correct Option is : (C)
Amorphous Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass; Crystalline Copper.

Topic: Chemistry, Solid State, NEET
Classify the following into monosaccharides and disaccharides. Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose.

Options:
A Ribose, 2- deoxyribose, galactose and fructose are Monosaccharides whereas lactose and maltose are Disaccharides
B Ribose, galactose, maltose and fructose are Monosaccharides whereas lactose and glucose are Disaccharides
C Ribose, galactose and fructose are Monosaccharides whereas lactose, maltose, and 2-deoxyribose are Disaccharides
D Lactose, 2-deoxyribose, galactose and fructose are Monosaccharides whereas Ribose and maltose are Disaccharides

The correct answer is:
Ribose, 2- deoxyribose, galactose and fructose are Monosaccharides whereas lactose and maltose are Disaccharides

Solution:
Correct Option is : (A)
Ribose, 2- deoxyribose, galactose and fructose are Monosaccharides whereas lactose and maltose are Disaccharides

Topic: Chemistry, Biomolecules, NEET
Classify the following oxides: A) CO B) B₂O₃ C) SiO₂ D) CO₂ E) Al₂O₃ F) PbO₂ G) Tl₂O₃ Choose the correct classifications:

Options:
A Neutral, Acidic, Acidic, Acidic, Amphoteric, Amphoteric, Basic
B Acidic, Acidic, Basic, Acidic, Neutral, Amphoteric, Basic
C Acidic, Acidic, Acidic, Acidic, Amphoteric, Amphoteric, Basic
D Neutral, Acidic, Acidic, Acidic, Amphoteric, Amphoteric, Basic

The correct answer is:
Neutral, Acidic, Acidic, Acidic, Amphoteric, Amphoteric, Basic

Solution:
Correct Option is : (D)
Neutral, Acidic, Acidic, Acidic, Amphoteric, Amphoteric, Basic

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Classify the following reaction in one of the reaction types studied in this chapter-

Options:
A Addition Reaction
B Nucleophilic Substitution Reaction
C Elimination Reaction
D Substitution through rearrangement

The correct answer is:
Elimination Reaction

Solution:
Correct Option is : (C)
Elimination Reaction

Topic: Chemistry, General Organic Chemistry, NEET
Classify the following reaction in one of the reaction types studied in this chapter-

Options:
A Addition Reaction
B Nucleophilic Substitution Reaction
C Elimination Reaction
D Nucleophilic substitution followed by rearrangement of particular species.

The correct answer is:
Nucleophilic substitution followed by rearrangement of particular species.

Solution:
Correct Option is : (D)
Nucleophilic substitution followed by rearrangement of particular species.

Topic: Chemistry, General Organic Chemistry, NEET
Classify the following reaction in one of the reaction types studied in this chapter-

Options:
A Addition Reaction
B Nucleophilic Substitution Reaction
C Elimination Reaction
D Nucleophilic Substitution followed by rearrangement

The correct answer is:
Nucleophilic Substitution Reaction

Solution:
Correct Option is : (B)
Nucleophilic Substitution Reaction

Topic: Chemistry, General Organic Chemistry, NEET
Classify the following reaction in one of the reaction types studied in this chapter-

Options:
A Addition Reaction
B Nucleophilic Substitution Reaction
C Elimination Reaction
D Substitution through rearrangement

The correct answer is:
Addition Reaction

Solution:
Correct Option is : (A)
Addition Reaction

Topic: Chemistry, General Organic Chemistry, NEET
Classify the following solids in different categories based on the nature of intermolecular forces operating in them Potassium sulphate, tin, benzene, urea, ammonia, water, zinc sulphide, graphite, rubidium, argon, silicon carbide.

Options:
A Ionic Potassium sulphate, zinc sulphide, silicon carbide; Molecular Benzene, urea, ammonia, water, argon; Metallic Tin, rubidium; Covalent Network Graphite.
B Ionic Potassium sulphate, zinc sulphide, silicon carbide; Molecular Benzene, urea, ammonia, water, argon; Metallic Tin, rubidium; Covalent Network Graphite, silicon carbide.
C Ionic Potassium sulphate, zinc sulphide; Molecular Benzene, urea, ammonia, water, argon; Metallic Tin, rubidium; Covalent Network Graphite, silicon carbide.
D Ionic Potassium sulphate, zinc sulphide; Molecular Benzene, urea, ammonia, water, argon; Metallic Tin, rubidium; Covalent Network Graphite, silicon carbide, argon.

The correct answer is:
Ionic Potassium sulphate, zinc sulphide, silicon carbide; Molecular Benzene, urea, ammonia, water, argon; Metallic Tin, rubidium; Covalent Network Graphite, silicon carbide.

Solution:
Correct Option is : (B)
Ionic Potassium sulphate, zinc sulphide, silicon carbide; Molecular Benzene, urea, ammonia, water, argon; Metallic Tin, rubidium; Covalent Network Graphite, silicon carbide.

Topic: Chemistry, Solid State, NEET
Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid/base:
(a) \(O H^{-}\)
(b) \(F^{-}\)
(c) \(\mathrm{H}^{+}\)
(d) \(\mathrm{BCl}_3\)

Options:
A (a) Lewis base (b) Lewis base (c) Lewis acid (d) Lewis acid
B (a) Lewis base (b) Lewis acid (c) Lewis acid (d) Lewis acid
C (a) Lewis base (b) Lewis base (c) Lewis acid (d) Lewis base
D (a) Lewis acid (b) Lewis base (c) Lewis acid (d) Lewis acid

The correct answer is:
(a) Lewis base (b) Lewis base (c) Lewis acid (d) Lewis base

Solution:
Correct Option is : (C)
(a) Lewis base (b) Lewis base (c) Lewis acid (d) Lewis base

Topic: Chemistry, Ionic Equilibrium, NEET
Classify the following species into Lewis acids and Lewis bases and show how these act as such a) HO-

Options:
A Lewis Acid
B Lewis Base
C Neither Lewis Acid nor Lewis Base
D Insufficient Information

The correct answer is:
Lewis Base

Solution:
Correct Option is : (B)
Lewis Base

Topic: Chemistry, Ionic Equilibrium, NEET
Classify the following species into Lewis acids and Lewis bases and show how these act as such b) F-

Options:
A Lewis Acid
B Lewis Base
C Neither Lewis Acid nor Lewis Base
D Insufficient Information

The correct answer is:
Lewis Base

Solution:
Correct Option is : (B)
Lewis Base

Topic: Chemistry, Ionic Equilibrium, NEET
Classify the following species into Lewis acids and Lewis bases and show how these act as such c) H+

Options:
A Lewis Acid
B Lewis Base
C Neither Lewis Acid nor Lewis Base
D Insufficient Information

The correct answer is:
Lewis Acid

Solution:
Correct Option is : (A)
Lewis Acid

Topic: Chemistry, Ionic Equilibrium, NEET
Classify the following species into Lewis acids and Lewis bases and show how these act as such d) BCl3

Options:
A Lewis Acid
B Lewis Base
C Neither Lewis Acid nor Lewis Base
D Insufficient Information

The correct answer is:
Lewis Acid

Solution:
Correct Option is : (A)
Lewis Acid

Topic: Chemistry, Ionic Equilibrium, NEET
Classify the following TiO2sol, charcoal

Options:
A Positively charged solution, negatively charged solution
B Negatively charged solution, positively charged solution
C Negatively charged solutions
D Positively charged solutions

The correct answer is:
Positively charged solution, negatively charged solution

Solution:
Correct Option is : 1
Positively charged solution, negatively charged solution

Topic: Chemistry, Surface Chemistry, NEET
Claviceps purpurea is causative organism for

Options:
A

Powdery mildew of pea

B

Ergot of rye

C

Rust of wheat

D

Smut of barley

The correct answer is:

Ergot of rye

Solution:
The fungus that causes the disease âergot of ryeâ is Claviceps purpurea. It contains many poisonous alkaloids. The hallucinogenic drug LSD is extracted from these fungi.

â¢ Rust of wheat is used by Puccinia graminis.
â¢ Powdery mildew of pea is caused by Erysiphae.
â¢ Smut of barley is caused by Ustilago.

Topic: Biology, Biological Classification, NEET
Clay is an example of

Options:
A Three dimensional silicates
B Chain silicates
C Cyclic silicates
D Sheet silicates

The correct answer is:
Sheet silicates

Solution:
Clay, talc, etc., are sheet silicates with the formula Si 2 O 5 n 2 n - .

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
Cleavage is found in

Options:
A Zygote
B Eggs
C Undivided cell
D After gastrula stage

The correct answer is:
Zygote

Solution:
The mitotic division called cleavage starts in the zygote which starts developing into blastomeres. Zygote â¶ Cleavage Morulla â¶ Blastulation Blastulla â¶ Gastrulation gastrula

Topic: Biology, Human Reproduction, NEET
Clemmensen reduction of a ketone is carried out in the presence of which of the following?

Options:
A $\mathrm{Zn}-\mathrm{Hg}$ with $\mathrm{HCl}$
B $\mathrm{LiAlH}_4$
C $\mathrm{H}_2$ and Pt as catalyst
D Glycol with $\mathrm{KOH}$

The correct answer is:
$\mathrm{Zn}-\mathrm{Hg}$ with $\mathrm{HCl}$

Solution:
The reducing agent used in Clemmensen reduction is $\mathrm{Zn}-\mathrm{Hg}$ and $\mathrm{HCl}$.

Topic: Chemistry, Hydrocarbons, NEET, NEET 2011 (Screening)
Climate of the world is threatened by:

Options:
A decreasing amount of atmospheric oxygen.
B increasing amount of atmospheric carbon dioxide.
C decreasing amount of atmospheric carbon dioxide.
D increasing concentration of atmospheric oxygen.

The correct answer is:
increasing amount of atmospheric carbon dioxide.

Solution:
Carbon dioxide is the major greenhouse gas. It is capable of absorbing infrared radiation, trapping and holding heat in the atmosphere. By increasing the heat in the atmosphere, greenhouse gases are responsible for the greenhouse effect, which ultimately leads to global warming. Greenhouse gases include carbon dioxide, water vapour, methane, ozone, nitrous oxide and fluorinated gases they absorb heat and trap heat within the surface-troposphere system.
Related Theory
The various consequences of Global warming are:
(i) Warmer climate: Global warming on an average, has resulted in increase by approximately $0.6 \%$ in $20^{\text {th }}$ century.
(ii) Extinction of a large number of plant and animal species.
(iii) Decrease in Food production.
(iv) Rise in mean Sea-level.

Topic: Biology, Environmental Issues, NEET, NEET 2013 (Karnataka)
Climax community is in a state of

Options:
A Non-equilibrium
B Equilibrium
C Disorder
D Constant change

The correct answer is:
Equilibrium

Solution:
Climax community is in a state of equilibrium.

Topic: Biology, Ecosystem, NEET
ClO 2 is an/a

Options:
A anhydride of HClO 2
B anhydride of HClO 3
C mixed anhydride of HClO 2 and HClO 3
D mixed anhydride of HClO 3 and HClO 4

The correct answer is:
mixed anhydride of HClO 2 and HClO 3

Solution:
ClO 2 reacts KOH forming KClO 3 and KClO 2
2âKOHâ+â 2ClO 2 â KClO 2 â+â KClO 3 â+â H 2 O
This reaction indicates that ClO 2 is a mixed anhydride of HClO 2 and HClO 3 .

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET