Kendriya Vidyalaya Question Papers Class 11 Chemistry. We covered all the Kendriya Vidyalaya Question Papers Class 11 Chemistry MCQs in this post for free so that you can practice well for the exam.
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Kendriya Vidyalaya Question Papers Class 11 Chemistry Objective for Students
Hoffmann’s rearrangement during the conversion of an amide to amine is
(A) Intramolecular
(B) Intermolecular
(C) Both
(D) None
Option a – Intramolecular
The number of p bonds present in CN-CH=CH-CN is ( Kendriya Vidyalaya Question Papers MCQ )
(A) 5
(B) 4
(C) 3
(D) 2
Option a – 5
Gabriel phthalimide reaction is used in the synthesis of
(A) Primary aromatic amines
(B) Secondary amines
(C) Primary aliphatic amines
(D) Tertiary amines
Option d – Tertiary amines
t-butyl isocyanide on reduction gives ( Kendriya Vidyalaya Question Papers MCQ )
(A) t-butylamine
(B) t-butyl methylamine
(C) t-butylethylamine
(D) None
Option b – t-butyl methylamine
Hydrolysis of alkyl isocyanide yields
(A) Primary amine
(B) Tertiary amine
(C) Alcohol
(D) Aldehyde
Option a – Primary amine
In disaccharides, the anomeric carbon of one monosaccharide is bonded to the carbon of another monosaccharide through ( Kendriya Vidyalaya Question Papers MCQ )
(A) Carbon
(B) Nitrogen
(C) Sulphur
(D) Oxygen
Option d – Oxygen
Glucose reacts with alcohol in the presence of dry HCl to give a cyclic hemiacetal. It shows that
(A) Formyl group and hydroxyl group are absent.
(B) Hydroxyl group is present.
(C) Formyl group is present.
(D) Hydroxyl group and formyl group are part of the same molecule.
Option d – Hydroxyl group and formyl group are part of the same molecule
The glycosidic linkage in carbohydrates is ( Kendriya Vidyalaya Question Papers MCQ )
(A) A link between C atoms in a carbohydrate through an oxygen atom formed by the elimination of water.
(B) A link between two carbon atoms in a carbohydrate by a covalent bond.
(C) A link between a carbon atom and an oxygen atom.
(D) A link between a carbon atom and a nitrogen atom.
Option a – A link between C atoms in a carbohydrate through an oxygen atom formed by the elimination of water
Sucrose molecule contains
(A) A glucofuranose and a fructofuranose units.
(B) A glucopyranose and a fructopyranose units.
(C) A glucopyranose and a fructofuranose units.
(D) A glucofuranose and a fructopyranose units.
Option c – A glucopyranose and a fructofuranose units
Benzyl amine is more …….. basic than aniline while ethyl amine is …… basic than diethyl amine ( Kendriya Vidyalaya Question Papers MCQ )
(A) More, less
(B) Less, more
(C) Both
(D) None
Option a – More, less
All classes of amines react with
(A) Water
(B) Acids
(C) Alkyl halides
(D) All the above
Option d – All the above
On reduction of Schiff’s base, we get ( Kendriya Vidyalaya Question Papers MCQ )
(A) Primary amine
(B) Secondary amine
(C) Anils
(D) Anilide
Option b – Secondary amine
This compound does not respond to the carbylamine reaction
(A) Isopropylamine
(B) Diethylamine
(C) t-Butylamine
(D) Sec-Butylamine
Option b – Diethylamine
Which reaction sequence would be best to prepare 3-chloroaniline from benzene? ( Kendriya Vidyalaya Question Papers MCQ )
(A) Chlorination, nitration, reduction
(B) Nitration, chlorination, reduction
(C) Nitration, reduction, chlorination
(D) Nitration, reduction, acetylation, chlorination, hydrolysis
Option b – Nitration, chlorination, reduction
Aniline is identified by
(A) Kolbe’s reaction
(B) Riemer-Tiemann reaction
(C) Carbylamine reaction
(D) Haloform reaction
Option c – Carbylamine reaction
Nitrobenzene on further excessive nitration gives ( Kendriya Vidyalaya Question Papers MCQ )
(A) sym-trinitrobenzene
(B) m-dinitrobenzene
(C) p-dinitrobenzene
(D) all of these
Option b – m-dinitrobenzene
Primary nitro compounds react with nitrous acid to form nitrolic acids which dissolve in NaOH giving
(A) yellow solution
(B) blue solution
(C) colorless solution
(D) red solution
Option d – red solution
Hinsberg’s reagent is ( Kendriya Vidyalaya Question Papers MCQ )
(A) Diethyl oxalate
(B) Benzyl chloride
(C) Benzene sulphonyl chloride
(D) None of these
Option c – Benzene sulphonyl chloride
Aqueous Bromination of aniline gives:
(A) 2-Bromoaniline
(B) 4-Bromoaniline
(C) 2,4,6-Tribromoaniline
(D) 2,6-Dibromoaniline
Option c – 2,4,6-Tribromoaniline
Ethylamine reacts with carbon disulphide in the presence of mercuric chloride and gives the main product ( Kendriya Vidyalaya Question Papers MCQ )
(A) Ethyl carbylamine
(B) Ethyl isonitrile
(C) Ethyl isothiocyanate
(D) Ethyl thiocyanide
Option c – Ethyl isothiocyanate
Aqueous solution of methylamine will be
(A) Acidic
(B) Basic
(C) Neutral
(D) Amphoteric
Option b – Basic
Which one of the following tests can be used to identify the primary amino group in a given organic compound ( Kendriya Vidyalaya Question Papers MCQ )
(A) Iodoform test
(B) Victor Meyer’s test
(C) Carbylamine reaction
(D) Liebermann’s reaction
Option a – Iodoform test
Weakest amine is
(A) Aniline
(B) Methylamine
(C) Dimethyl amine
(D) Ethylamine
Option a – Aniline
If primary amines are treated with ketones, the product is ( Kendriya Vidyalaya Question Papers MCQ )
(A) Urea
(B) Guanidine
(C) Amide
(D) Schiff’s base
Option a – Urea
N, N-dimethyl acetamide is obtained in the reaction
(A) Acetyl chloride and methanamine
(B) Acetyl chloride and ethanamine
(C) Acetyl chloride and dimethylamine
(D) Acetyl chloride and diethylamine
Option c – Acetyl chloride and dimethylamine
A compound of molecular weight 180 g/mol is acetylated to give a compound of molecular weight 390 g/mol. The number of amino groups in the compound are ( Kendriya Vidyalaya Question Papers MCQ )
(A) 2
(B) 4
(C) 5
(D) 6
Option c – 5
Propylamine reacts with nitrous acid to form a relatively stable cation viz.
(A) Propyl diazonium ion
(B) Isopropyl carbocation
(C) Isopropyl diazonium ion
(D) Propyl carbonium ion
Option b – Isopropyl carbocation
Which of the following does not form a sulfur compound with a primary amine ( Kendriya Vidyalaya Question Papers MCQ )
(A) Hinsberg’s reagent
(B) Sulfuric acid
(C) Schotten-Boumann reaction
(D) Mustard oil reaction
Option c – Schotten-Boumann reaction
False statement regarding amines is:
(A) They give mustard oil reaction
(B) They give carbylamine reaction
(D) They give alcohol on hydrolysis
Option d – They give alcohol on hydrolysis
Which of the following compounds gives an explosive on decarboxylation ( Kendriya Vidyalaya Question Papers MCQ )
(A) 2,4, 6-Trinitrobenzoic acid
(B) 2, 4-Dinitrobenzoic acid
(C) o-Aminobenzoic acid
(D) o-Hydroxy benzoic acid
Option a – 2,4, 6-Trinitrobenzoic acid
Aniline is purified by:
(A) Azeotropic distillation
(B) Steam distillation
(C) Distillation in the presence of magnesium
(D) Fractional distillation
Option b – Steam distillation
Aniline on treatment with bromine water yields a white precipitate of ( Kendriya Vidyalaya Question Papers MCQ )
(A) o-Bromoaniline
(B) p-Bromonailine
(C) 2, 4, 6-Tribromoaniline
(D) m-Bromoaniline
Option c – 2, 4, 6-Tribromoaniline
Which of the following is the most basic:
(A) Aniline
(B) o-Nitroaniline
(C) m-Nitroaniline
(D) p-Nitroaniline
Option a – Aniline
The lowest boiling point will be of the compound ( Kendriya Vidyalaya Question Papers MCQ )
(A) Ethylamine
(B) Ethylmethylamine
(C) 1-propanamine
(D) N, N-dimethylmethanamine
Option d – N, N-dimethylmethanamine
The solubility of ethylamine in water is due to:
(A) Low molecular weight
(B) Ethyl group is present in ethyl alcohol
(C) Formation of H-bonding with water
(D) Being a derivative of ammonia
Option c – Formation of H-bonding with water
The lowest boiling point will be of the compound ( Kendriya Vidyalaya Question Papers MCQ )
(A) Ethylamine
(B) Ethylmethylamine
(C) 1-Propaneamine
(D) N,N-Dimethylmethanamine
Option a – Ethylamine
The odor of alkyl cyanides is similar to –
(A) Bitter almonds
(B) Acid
(C) Fruity smell
(D) None
Option a – Bitter almonds
Which of the following compounds gives the smell of mustard oil ( Kendriya Vidyalaya Question Papers MCQ )
(A) Alkyl isocyanate
(B) Alkyl isothiocyanate
(C) Alkyl isocyanide
(D) Alkyl isonitrile
Option b – Alkyl isothiocyanate
The basic character of amines can be explained
(A) In terms of Lewis and Arrhenius concept
(B) In terms of Lowry and Bronsted concept
(C) In terms of Lewis and Lowry Bronsted concept
(D) Only by Lewis concept
Option c – In terms of Lewis and Lowry Bronsted concept
The number of resonating structures of anilinium ion is ( Kendriya Vidyalaya Question Papers MCQ )
(A) 2
(B) 3
(C) 4
(D) 5
Option a – 2
Hydrolysis of benzonitrile gives
(A) benzylamine
(B) aniline
(C) benzoic acid
(D) benzene
Option c – benzoic acid
Butane nitrile may be prepared by heating ( Kendriya Vidyalaya Question Papers MCQ )
(A) propyl alcohol with KCN
(B) butyl alcohol with KCN
(C) butyl chloride with KCN
(D) propyl chloride with KCN
Option d – propyl chloride with KCN
Gabriel phthalimide reaction is used for the preparation of
(A) primary aromatic amines
(B) secondary amines
(C) primary aliphatic amines
(D) tertiary amines
Option c – primary aliphatic amines
Which of the following is not an explosive? ( Kendriya Vidyalaya Question Papers MCQ )
(A) Nitroglycerine
(B) o-Aminotoluene
(C) Dynamite
(D) Trinitrotoluene
Option b – o-Aminotoluene
Reduction of acetaldoxime gives:
(A) Ethylamine
(B) Acetaldehyde
(C) Dimethylamine
(D) Methylcarbamide
Option a – Ethylamine
Mendius reaction involves the reduction of ( Kendriya Vidyalaya Question Papers MCQ )
(A) Cyanoalkanes
(B) Alkyl isocyanides
(C) Oximes
(D) Nitroalkanes
Option a – Cyanoalkanes
Gabriel’s reaction to the synthesis of amines involves the use of:
(A) 1° amide
(B) 2° amide
(C) Cyclic imide
(D) Aliphatic amide
Option c – Cyclic imide
Ethylamine can be prepared by all except ( Kendriya Vidyalaya Question Papers MCQ )
(A) Curtius reaction
(B) Hofmann reaction
(C) Mendius reaction
(D) Reduction of formaldoxime
Option d – Reduction of formaldoxime
Which of the following methods is generally not employed for the separation of primary, secondary, and tertiary amines?
(A) Fractional distillation
(B) Hinsberg’s method
(C) Hofmann’s method
(D) Filtration
Option d – Filtration
The chain isomer of butanal is
(A) 2-methyl propan-1-ol
(B) 2-methyl propan-1-al
(C) 2-methyl butan-1-ol
(D) 2-methyl butanal
Option b – 2-methyl propan-1-al
Propionaldehyde and acetone are
(A) Chain isomers
(B) Position isomers
(C) Functional isomers
(D) Tautomers
Option c – Functional isomers
The tautomer of acetaldehyde is
(A) Crotyl alcohol
(B) Allyl alcohol
(C) Benzyl alcohol
(D) Vinyl alcohol
Option d – Vinyl alcohol
Select the correct IUPAC name for salicylic acid
(A) 2-methyl benzoic acid
(B) 2-hydroxy benzoic acid
(C) 2-hydroxy butanedioic acid
(D) Hexanedioic acid
Option b – 2-hydroxy benzoic acid
From Goat, the substance obtained is
(A) Caproic acid
(B) Carbolic acid
(C) Valeric acid
(D) Butyric acid
Option a – Caproic acid
Aliphatic tricarboxylic acid is
(A) Citric acid
(B) Phthalic acid
(C) Tartaric acid
(D) Oxalic acid
Option a – Citric acid
Pentan-2-one and 3-methyl butan-2-one are
(A) Functional isomers
(B) Optical isomers
(C) Chain isomers
(D) Metamers
Option c – Chain isomers
The enolic form of acetone contains
(A) 9 sigma bonds, 2 pi bonds, and 1 lone pair
(B) 10 sigma bonds, 1 pi bond, and 1 lone pair
(C) 8 sigma bonds, 2 pi bonds, and 2 lone pairs
(D) 9 sigma bonds, 1 pi bond, and 2 lone pairs.
Option d – 9 sigma bonds, 1 pi bond, and 2 lone pairs
A functional isomer of ethanoic acid is
(A) Methyl methanoate
(B) Methyl ethanoate
(C) Ethyl formate
(D) Ethyl acetate
Option a – Methyl methanoate
Methyl ethanoate and ethyl methanoate are
(A) Metamers
(B) Tautomers
(C) Functional isomers
(D) Chain isomers
Option a – Metamers
3-Hydroxypropanal functional isomer is
(A) Propionic acid
(B) 1-Hydroxy propan-2-one
(C) 3-Hydroxy propionate
(D) Ethyl methyl ketone
Option b – 1-Hydroxy propan-2-one
Select the correct IUPAC name of n-butyrophenone
(A) 1-phenyl butan-1-one
(B) Phenyl-n-propyl ketone
(C) Cinnamaldehyde
(D) Vanillin
Option a – 1-phenyl butan-1-one
m-toluic acid and p-toluic acid are
(A) Chain isomers
(B) Functional isomers
(C) Tautomers
(D) Position isomers
Option d – Position isomers
Diethyl ketone and methyl n-propyl ketone are
(A) Chain isomers.
(B) Optical isomers
(C) Metamers
(D) Tautomers
Option c – Metamers
The oxidation product of pentan-2-ol is
(A) Valeraldehyde
(B) Diethyl ketone
(C) Methyl n-propyl ketone
(D) Pentan-3-one
Option c – Methyl n-propyl ketone
Alkanal is obtained by ozonolysis of
(A) Alkene
(B) Alkane
(C) Aldehyde
(D) Ether
Option a – Alkene
Propanone is obtained by the decomposition of ozonide of
(A) Isobutylene
(B) 2-Methyl but-2-ene
(C) 3,4-Dimethyl hex-3-ene
(D) 2,3-Dimethyl but-2-ene
Option d – 2,3-Dimethyl but-2-ene
Ethanal is prepared by ozonolysis of
(A) But-1-ene
(B) But-2-ene
(C) 2-Methyl prop-1-ene
(D) Ethene
Option c – 2-Methyl prop-1-ene
Alkyne produce alkanal on hydration is
(A) Acetylene
(B) Propyne
(C) Dimethyl acetylene
(D) Ethyl acetylene
Option a – Acetylene
Propanone is the hydration product of
(A) Ethene
(B) Propene
(C) Propyne
(D) But-2-yne
Option c – Propyne
Dimethyl acetylene on hydration produces
(A) Butyraldehyde
(B) Ethyl methyl ketone
(C) Sec. butyl alcohol
(D) 2-Methyl propanal
Option b – Ethyl methyl ketone
The stable hydrolysis product of isopropylidene hydrogen sulfate is
(A) Propan-1-ol
(B) Propyne
(C) Propan-1-al
(D) Propan-2-one
Option d – Propan-2-one
Dehydrogenation product of sec. butyl alcohol is
(A) Valeraldehyde
(B) Butyric acid
(C) Butanone
(D) But-2-ene
Option c – Butanone
Which of the following compound reacts with phenyl magnesium bromide and formed product on acid hydrolysis gives
(A) Benzonitrile
(B) Pent-3-en nitrile
(C) 2-Phenyl ethane nitrile
(D) 3-Phenyl propane
Option a – Benzonitrile
Chromium complex, prepared from methyl benzene and chromyl chloride on hydrolysis gives
(A) Methyl phenyl ketone
(B) Benzoic acid
(C) Benzaldehyde
(D) Salicylic acid
Option c – Benzaldehyde
Preparation of benzaldehyde from toluene using chromyl chloride is …… reaction.
(A) Esterification
(B) Reduction
(C) Hydrolysis
(D) Oxidation
Option d – Oxidation
A mixture of carbon monoxide and hydrochloric acid when passed through solution of benzene in ether containing An.aluminium trichloride gives
(A) Carbolic acid
(B) Benzene carboxylic acid
(C) Bromobenzene
(D) Benzene carbaldehyde
Option d – Benzene carbaldehyde
Alkyl cyanides treated with alkyl magnesium halide gives addition complex which on hydrolysis
(A) Alcohols
(B) Aldehydes
(C) Ketones
(D) Esters
Option c – Ketones
Ethanal is not prepared from
(A) Formonitrile + G.R.
(B) Ethylidene dichloride by hydrolysis
(C) Acetonitrile by Stephen’s reaction
(D) Ethen-1-nitrile
Option a – Formonitrile + G.R
Ethyl benzoate on alkaline hydrolysis gives:
(A) Alkali benzoate and ethyl alcohol
(B) Carbolic acid and ethanoic acid
(C) Benzoic acid and alkali ethoxide
(D) Benzoic acid and ethyl alcohol
Option a – Alkali benzoate and ethyl alcohol
Alkane nitriles prepared from isopropyl bromide and potassium cyanide on acid hydrolysis give:
(A) n-Propionic acid
(B) n-Butyric acid
(C) Isopropionic acid
(D) Isobutyric acid
Option d – Isobutyric acid
Benzoic acid is the acid hydrolysis product of:
(A) Benzoyl chloride
(B) Benzonitrile
(C) Benzamide
(D) All of the above
Option d – All of the above
Benzoyl chloride on treating with water produces:
(A) Phenyl methanol
(B) Benzene
(C) Benzoic acid
(D) Benzene carbaldehyde
Option c – Benzoic acid
Benzal chloride prepared from toluene and chlorine in the presence of UV light on hydrolysis gives:
(A) Benzophenone
(B) Benzyl alcohol
(C) Benzaldehyde
(D) Acetophenone
Option c – Benzaldehyde
Acetophenone is prepared by reacting ethanoyl chloride and:
(A) Methane
(B) Propane
(C) Butane
(D) Benzene
Option d – Benzene
Benzophenone is prepared by Friedel-Craft reaction from:
(A) Methyl phenyl ketone and benzene
(B) Ethanoyl chloride and benzene
(C) Benzoyl chloride and benzene
(D) Bromobenzene and benzene
Option c – Benzoyl chloride and benzene
Formylation of benzene or toluene by CO + HCl is:
(A) Rosenmund’s reaction
(B) Stephen’s reaction
(C) Gattermann-Koch synthesis
(D) Wurtz reaction
Option c – Gattermann-Koch synthesis
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