Organic Compounds Containing Nitrogen  MCQs

MCQs of Organic Compounds Containing Nitrogen

Showing 51 to 60 out of 139 Questions
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51.
Find incorrect statement.
(a) Basicity of aromatic amines is less than that of ammonia.
(b) Stability of aniline is less than that of anilinium ion. Hence aniline has greater tendency to accept proton.
(c) Basicity of diethyl amine is greater than that of aniline.
(d) Basicity of diethyl amine is greater than that of ethanamine.
Answer:

Option (b)

52.
What is obtained on acetylation of aniline ?
(a) Paracetamol
(b) N-acetyl aminobenzene
(c) o-amino acetophenone
(d) p-amino acetophenone
Answer:

Option (b)

53.
Secondary and tertiary amines do not give carbylamine test because _____ .
(a) these compounds combine with CHCl3 and form stable compounds
(b) there is no sufficient number of H-atoms on N-atom of amine group
(c) these compounds reacts with alcoholic KOH
(d) All reasons are correct
Answer:

Option (b)

54.
Which compound from the following has least pKb value in aqueous solution ?
(a) (CH3)3N
(b) C6H5NH2
(c) (CH3)2NH
(d) CH3NH2
Answer:

Option (c)

55.
Which of the following methods / reactions is not useful for synthesis of separation of amines ?
(a) Hinsberg method
(b) Hoffmann method
(c) Wurtz reaction
(d) Curtius reaction
Answer:

Option (c)

56.
Hot alcoholic KOH and _____ are required in carbylamine reaction.
(a) any primary amine and chloroform
(b) chloroform and silver powder
(c) primary amine and alkyl halide
(d) monoalkyl amine and trichloromethane
Answer:

Option (a)

57.
_____ is obtained by action of nitrous acid on aliphatic primary amine.
(a) Secondary amine
(b) Nitro alkane
(c) Alcohol
(d) Alkyl nitrite
Answer:

Option (c)

58.
Which compound gives substance of foul smell by reacting with chloroform in alkaline medium ?
(a) Dimethyl amine
(b) Trimethyl amine
(c) Acetamide
(d) Methyl amine
Answer:

Option (d)

59.
Which of the following is more reactive towards electrophilic substitution reaction ?
(a) Nitrobenzene
(b) Aniline
(c) Aniline hydrochloride
(d) N-acetyl aniline
Answer:

Option (b)

60.
What is the reagent Y used in the following reaction ? CH3CH2NH2 →Y CH3CH2OH
(a) CHCl3 + KOH
(b) NaNO2 + HCl
(c) Br2 + NaOH
(d) Fe + HCl
Answer:

Option (b)

Showing 51 to 60 out of 139 Questions
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