The reaction of CHCl3 and alcoholic KOH with p-toluidine gives
C.
Aliphatic and aromatic primary amines on warming with CHCl3 and alcoholic KOH form isocyanide or carbylamine which has very unpleasant smell. This reaction is known as carbylamine reaction. Since p-toluidine contains an aromatic primary amine group, it undergoes similar reaction and give 4-methyl phenyl isocyanide.
The correct order of increasing basic nature of the following bases is
2 < 5 < 1 < 3 < 4
5 < 2 < 1 < 3 < 4
2 < 5 < 1 < 4 < 3
5 < 2 < 1 < 4 < 3
Choose the amide which on reduction with LiAlH4 yields a secondary amine
ethanamide
N-methylethanamide
N, N-dimethylethanamide
phenylmethanamide
Arrange the following amines in the decreasing order of their basic strength. Aniline (I), Benzylamine (II), p-toluidine (III)
I > II > III
II > III > I
III > II > I
II > I > III
Which one of the following compounds will dissolve in an alkali solution after it has undergone reaction with Hinsberg reagent?
CH3NH2
(CH3)3N
(C2H5)2NH
C6H5NHC6H5
Identify the product in the following sequence
3, 4, 5-tribromobenzene
1, 2, 3-tribromobenzene
2, 4, 6-tribromobenzene
3, 4, 5-tribromonitrobenzene
Among the amines
(A) C6H5NH2
(B) CH3NH2
(C) (CH3)3N
(D) (CH3)2NH
A < B < D <C
D < C < B <A
A > B > C >D
B < C < D <A
The indicator that is obtained by coupling the diazonium salt of sulphanilic acid with N, N-dimethyl aniline is
phenanthroline
methyl orange
methyl red
phenolphthalein