Question
Chemistry Question on Amines
Which one of the following forms a green solid with nitrous acid?
A
Dimethylamine
B
Dimethylaniline
C
Methylamine
D
Methylaniline
Answer
Dimethylaniline
Explanation
Solution
Aromatic tertiary amines undergo electrophilic substitution with nitrosonium ion at p-position of the phenyl ring to form green coloured p-nitrosoamines.