CBSE Class 12 Chemistry Amines Worksheet Set C

Question. IUPAC name of product formed by reaction of methyl amine with two moles of ethyl chloride
(A) N,N-Dimethylethanamine
(B) N,N-Diethylmethanamine
(C) N-Methyl ethanamine
(D) N-Ethyl - N-methylethanamine
Answer : D

Question. The best reagent for converting 2–phenylpropanamide into 2-phenylpropanamine is _____.
(A) excess H₂
(B) Br₂ in aqueous NaOH
(C) Iodine in the presence of red phosphorus
(D) LiAlH4 in ether
Answer : D

Question. CH₃CONH₂ on reaction with NaOH and Br² in alcoholic medium gives:
(A) CH₃CH₂NH₂
(B) CH₃CH2Br
(C) CH₃NH₂
(D) CH₃COONa
Answer : C

Question. Propanamide on reaction with bromine in aqueous NaOH gives:
(A) Propanamine
(B) Ethanamine
(C) N-Methyl ethanamine
(D) Propanenitrile 
Ans. Option (B) is correct.

Question. Write IUPAC name of the following compound:

(A) N,N-Dimethylpropanamine
(B) 1,1-Dimethylbutanamine
(C) N-Methylpentan-1-amine
(D) N,N-Dimethylbutan-1-amine 
Answer : D

Question. Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine ?
(A) H₂(excess)/Pt
(B) LiAlH₄ in ether
(C) Fe and HCl
(D) Sn and HCl 
Answer : B

Question. The correct increasing order of basic strength for the following compounds is __________.

(A) II<III< I
(B) III < I < II
(C) III < II < I
(D) II < I < III
Answer : D

Question. The correct IUPAC name for CH₂ = CHCH₂NHCH₃ is:
(A) Allylmethylamine
(B) 2-amino-4-pentene
(C) 4-aminopent-1-ene
(D) N-methylprop-2-en-1-amine 
Answer : D

Question. Hinsberg’s reagent which is used to test amines is
(A) Benzene sulphonamide
(B) Benzene diazonium chloride
(C) Benzene sulphonyl chloride
(D) Acetanilide
Answer : C

Question. The best method for preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is:
(A) Hoffmann Bromamide reaction
(B) Gabriel phthalimide synthesis
(C) Sandmeyer reaction
(D) Reaction with NH₃
Answer : B

Question. Which of the following is a 3° amine ?
(A) 1-methylcyclohexylamine
(B) Triethylamine
(C) tert-butylamine
(D) N-methylaniline 
Answer : B

Question. Which of the following species are involved in the carbylamine test ?
(A) R—NC
(B) COCl₂
(C) NaNO₂ + HCl
(D) All of the above A
Answer : A

Question. Which of the following amines can be prepared by Gabriel synthesis ?
(A) Isobutyl amine
(B) Toluene
(C) N-methylbenzylamine
(D) Aniline 
Answer : A

Question. Methylamine reacts with HNO₂ to form _________.
(A) CH₃ — O — N = O
(B) CH₃ — O — CH₃
(C) CH3OH
(D) CH₃CHO
Answer : C

Question. The gas evolved when methylamine reacts with nitrous acid is:
(A) NH₃
(B) N₂
(C) H₂
(D) C2H6
Answer : B

Question. Arrange the following in increasing order of basic strength:
Aniline, p-nitroaniline and p-toluidine
(A) Aniline < p-Nitroaniline < p-Toluidine
(B) Aniline < p-Toluidine < p-Nitroaniline
(C) p-Toluidine < p-Nitroaniline < Aniline
(D) p-Nitroaniline < Aniline < p-Toluidine
Answer : D

Question. Which of the following should be most volatile ?

(A) (ii)
(B) (iv)
(C) (i)
(D) (iii) 
Answer : B

MATCH THE FOLLOWING

 

Please click on below link to download CBSE Class 12 Chemistry Amines Worksheet Set C