Chapter 13 Amines MCQs
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
CH3–COONH4 \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