Chapter 13 Amines MCQs for Class 12 Chemistry

Chapter 13 Amines MCQs for Class 12 Chemistry

Here students can practice Chapter 13 Amines MCQs for Class 12 Chemistry. All the MCQs are divided into several sub-pages. Each page has 40 MCQs, for the next page just scroll down and click on the button. Also you can practice Class 12 Chemistry MCQs (Multiple Choice Questions) for other units.

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Q 1.: Benzamide on reaction with POCl3 gives

(A) Aniline

(B) Chlorobenzene

(C) Phenylamine

(D) Phenyl nitrile 

Option – D

Q 2.: Commonly used catalyst in the preparation of acrylonitrile from propylene, ammonia and oxygen is

(A) Silver

(B) Bismuth molybdates

(C) Nickel

(D) Cr2O3

Option – B

Q 3.: Ethyl isocyanide on hydrolysis in acidic medium generates

(A) Ethylamine salt and methanoic acid

(B) Propanoic acid and ammonium salt

(C) Ethanoic acid and ammonium salt

(D) Methylamine salt and Ethanoic acid

Option – A

Q 4.: Identify ‘Z’ in the sequence

CH3COONH4  \( \xrightarrow[]{~Heat~}  \)  X  \( \xrightarrow[\Delta ]{~P_{2}O_{5}~}  \)   Y   \( \xrightarrow[]{~H_{2}O/H^{+}~} \)  Z

(A) CH3-CH2-CONH2 

(B) CH3-CN

(C) (CH3CO)2O

(D) CH3COOH

Option – D

Q 5.: Isocyanide can be prepared by alkyl halide on treatment with

(A) AgNC

(B) KCN

(C) AgCN

(D) None of these

Option – C

Q 6.: Unpleasant smell of carbylamine is obtained when chloroform and alcoholic KOH are heated with

(A) Any aliphatic amine

(B) Any secondary amine

(C) Any primary amine

(D) Any aromatic amine

Option – C

Q 7.: Hydrolysis of HCN gives

(A) Formaldehyde

(B) Formic acid

(C) Methanol

(D) Methane

Option – B

Q 8.: Which of the following compound results into benzene nitrile on its hydrolysis ?

(A) Benzoic acid

(B) Benzamide

(C) Benzophenone

(D) Aniline

Option – A

Q 9.: Hydrolysis of phenyl isocyanide forms

(A) Benzoic acid

(B) Benzaldehyde

(C) Formic acid

(D) Formaldehyde

Option – C

Q 10.: Isocyanide is prepared by

(A) Friedel-Crafts reaction

(B) Williamson’s synthesis

(C) Ullmann reaction

(D) Carbylamine reaction

Option – D

Q 11.: An organic compound ‘A’ having molecular formula C2H3N on reduction gives another compound ‘B’, upon treatment with nitrous acid ‘B’ gives ethyl alcohol. On warming with chloroform and alcoholic KOH, it forms an offensive smell compound ‘C’. The compound ‘C’ is

(A) CH3CH2NH2

(B) CH3CH2NC

(C) CH3CN

(D) CH3CH2OH

Option – B

Q 12.: Assertion (A) : Alkyl isocyanides in acidified water give alkyl formamides.

Reason (R) : In isocyanides, carbon first act as a nucleophile and then as an electrophile.

(A) Both ‘A’ and ‘R’ are correct and ‘R’ is the correct explanation of ‘A’

(B) Both ‘A’ and ‘R’ are correct and ‘R’ is not the correct explanation of ‘A’

(C) ‘A’ is correct but ‘R’ is incorrect

(D) Both ‘A’ and ‘R’ are incorrect

Option – A

Q 13.: Which one of the following reagents will convert acetamide to ethanamine ?

(A) Lithium aluminium hydride

(B) Phosphorous pentoxide

(C) Thionyl chloride

(D) Br2/H2O

Option – A

Q 14.: Hofmann bromide degradation is shown by 

(A) C6H5-NH2

(B) C6H5-NO2

(C) C6H5-CONH2

(D) C6H5-CH2NH2

Option – C

Q 15.: The correct sequence of reaction to be performed to convert benzene into meta-bromoaniline is

(A) Bromination, nitration, reduction

(B) Nitration, reduction, bromination

(C) reduction, nitration, bromination

(D) nitration, bromination, reduction

Option – D

Q 16.: Aniline is treated with bromine water to give an organic compound ‘X’ which when treated with NaNO2 and HCl at 0 0C gives a water-soluble compound ‘Y’. Compound ‘Y’ on treatment with Cu2Cl2 and HCl gives compound ‘Z’. Compound ‘Z’ is

(A) 2,4,6-tribromophenol

(B) 2,4,6-tribromochlorobenzene

(C) 2,4,6-trichloroaniline

(D) Chlorobenzene

Option – B

Q 17.: Which of the following statements about primary amines is incorrect ?

(A) Alkyl amines are stronger bases than ammonia

(B) Alkyl amines react with nitrous acid to produce alcohols

(C) Aryl amines react with nitrous acid to produce phenol

(D) Alkyl amines are stronger bases than aryl amines

Option – C

Q 18.: Assertion (A) : Anilinium chloride is more acidic than ammonium chloride.

Reason (R) : Anilinium ion is resonance-stabilised

(A) Both ‘A’ and ‘R’ are correct and ‘R’ is the correct explanation of ‘A’

(B) Both ‘A’ and ‘R’ are correct and ‘R’ is not the correct explanation of ‘A’

(C) ‘A’ is correct but ‘R’ is incorrect

(D) Both ‘A’ and ‘R’ are incorrect

Option – C

Q 19.: Acetamide is treated with the following reagents separately. Which one of these would yield methyl amine ?

(A) NaOH-Br2

(B) PCl5

(C) Sodalime

(D) Hot conc. H2SO4

Option – A

Q 20.: Which one of the following statements is correct ?

(A) Aniline is a stronger base than ethyl amine

(B) Aniline is a stronger base than p-methoxyaniline

(C) Aniline is soluble in an ammonium hydroxide solution

(D) Aniline must be acetylated before nitration with an acid derivative

Option – D

Q 21.: Nitrogen gas will not be evolved upon reaction of HNO2 with which of the following amines ?

(A) Primary amine

(B) Secondary amine

(C) Tertiary amine

(D) Both ‘B’ and ‘C’

Option – D

Q 22.: Iso-propyl amine is a

(A) Primary amine

(B) Secondary amine

(C) Tertiary amine

(D) Quaternary amine

Option – A

Q 23.: The reaction of primary amine with chloroform and ethanolic solution of KOH is called

(A) Hofmann’s reaction

(B) Reimer-Tiemann reaction

(C) Carbylamine reaction

(D) Kolb’s reaction

Option – C

Q 24.: Aniline react with acetaldehyde to form

(A) Carbylamine

(B) Schiff’s base

(C) Immine

(D) None of these

Option – B

Q 25.: An aliphatic amine on treatment with alcoholic carbon disulphide and mercuric chloride forms ethyl isothiocyanate, the reaction is known as

(A) Hofmann reaction

(B) Hofmann’s bromamide degradation reaction

(C) Hofmann’s mustard oil reaction

(D) Hofmann’s rearrangement

Option – C

Q 26.: Assertion (A) : Amines are more basic than ester and ethers

Reason (R) : Nitrogen is less electronegative than oxygen. It is in better position to accommodate the positive charge on the proton.

(A) Both ‘A’ and ‘R’ are correct and ‘R’ is the correct explanation of ‘A’

(B) Both ‘A’ and ‘R’ are correct and ‘R’ is not the correct explanation of ‘A’

(C) ‘A’ is correct but ‘R’ is incorrect

(D) Both ‘A’ and ‘R’ are incorrect

Option – A

Q 27.: Aniline is prepared in the presence of Fe/HCl from

(A) Benzene

(B) Nitrobenzene

(C) Dinitrobenzene

(D) Cyanobenzene

Option – B

Q 28.: Which of the following is more basic than aniline ?

(A) Diphenylamine

(B) Triphenylamine

(C) p-nitroaniline

(D) Benzylamine

Option – D

Q 29.: Aniline on oxidation with Na2Cr2O7 and H2SO4 gives

(A) p-benzoquinone

(B) m-amino benzoic acid

(C) Benzoic acid

(D) Phenol

Option – A

Q 30.: Reduction of nitrobenzene with Sn/HCl produce

(A) Azobenzene

(B) Nitrobenzene

(C) Aniline

(D) Chlorobenzene

Option – C

Q 31.: Nitrobenzene give N-phenylhydroxylamine by

(A) Sn/HCl

(B) H2/Pd-C

(C) Zn/NaOH

(D) Zn/NH4Cl

Option – D

Q 32.: Nitration of nitrobenzene at 125 0C with mixed acids gives

(A) meta-dinitrobenzene

(B) ortho-dinitrobenzene

(C) para-dinitrobenzene

(D) 1,3,5-trinitrobenzene

Option – A

Q 33.: Nitrobenzene on reaction with conc HNO3 / H2SO4 at 80 – 100 0C forms which one of the following products ?

(A) 1,2-dinitrobenzene

(B) 1,3-dinitrobenzene

(C) 1,4-dinitrobenzene

(D) 1,2,4-trinitrobenzene

Option – B

Q 34.: The correct sequence of reactions to convert p-nitrophenol into quinol involves

(A) Reduction, diazotisation and hydrolysis

(B) Hydrolysis, diazotisation and reduction

(C) Diazotization, reduction and hydrolysis

(D) Reduction, hydrolysis and diazotisation

Option – A

Q 35.: Assertion (A) : Nitrobenzene is used as a solvent in Friedel-Craft reaction

Reason (R) : Fusion of nitrobenzene with solid KOH gives a low yield of mixture of ortho- and para-nitrophenols.

(A) Both ‘A’ and ‘R’ are correct and ‘R’ is the correct explanation of ‘A’

(B) Both ‘A’ and ‘R’ are correct and ‘R’ is not the correct explanation of ‘A’

(C) ‘A’ is correct but ‘R’ is incorrect

(D) Both ‘A’ and ‘R’ are incorrect

Option – C

Q 36.: Assertion (A) : para-O2N-C6H5COCH3 is prepared by Friedel-Craft acylation of nitrobenzene.

Reason (R) : Nitrobenzene easily undergoes electrophilic substitution reaction 

(A) Both ‘A’ and ‘R’ are correct and ‘R’ is the correct explanation of ‘A’

(B) Both ‘A’ and ‘R’ are correct and ‘R’ is not the correct explanation of ‘A’

(C) ‘A’ is correct but ‘R’ is incorrect

(D) Both ‘A’ and ‘R’ are incorrect

Option – D

Q 37.: Hydroazobenzene on treatment with H2SO4 forms

(A) Azobenzene

(B) Azobenzene sulphonic acid

(C) Benzidine

(D) None of these

Option – C

Q 38.: Decomposition of benzene diazonium chloride by using Cu2Cl2/HCl to form chlorobenzene is

(A) Raschig’s reaction 

(B) Sandmeyer’s reaction

(C) Kolbe’s reaction

(D) Cannizaro’s reaction

Option – B

Q 39.: Aniline in a set of reactions yielded a product ‘D’

C6H5-NH2  \( \xrightarrow[HCl]{~NaNO_{2}~}  \)  A  \( \xrightarrow[]{~CuCN~}  \)  B  \( \xrightarrow[Ni]{~H_{2}~}  \)  C  \( \xrightarrow[]{~HNO_{2}~} \)  D

The structure of the product ‘D’ would be :

(A) C6H5CH2NH2

(B) C6H5NHCH2CH3

(C) C6H5NHOH

(D) C6H5CH2OH

Option – D

Q 40.: Diethyl oxalate is used for distinguishing primary, secondary and tertiary

(A) Alcohol

(B) Amines

(C) Alkyl halides

(D) None of these

Option – B

Pagination

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We hope that these Chapter 13 Amines MCQs for Class 12 Chemistry helped you in learning new concepts. All questions are based on NCERT syllabus and some of them have been asked in various competitive exams. You can go to the next pages to practice more for Chapter 13 Amines MCQs for Class 12 Chemistry, click on the question range given above.

Also you can practice Class 12 Chemistry MCQs (Multiple Choice Questions) for other units.