Q145 / 200 · MHT CET - Medical 2026 (24 April Shift 1) · Chemistry
Which of the following amines has imino functional group?
- AEthyl amine
- BTrimethyl amine
- Correct answerCDimethyl amine
- DAniline
Solution
Primary amines contain an amino group ($-NH_2$).
Secondary amines contain an imino group ($>NH$).
Tertiary amines contain a tertiary nitrogen atom ($>N-$).
Ethyl amine ($CH_3CH_2NH_2$) is a primary amine.
Trimethyl amine ($(CH_3)_3N$) is a tertiary amine.
Dimethyl amine ($(CH_3)_2NH$) is a secondary amine, hence it contains an imino group.
Aniline ($C_6H_5NH_2$) is a primary amine.
Answer: Dimethyl amine
Secondary amines contain an imino group ($>NH$).
Tertiary amines contain a tertiary nitrogen atom ($>N-$).
Ethyl amine ($CH_3CH_2NH_2$) is a primary amine.
Trimethyl amine ($(CH_3)_3N$) is a tertiary amine.
Dimethyl amine ($(CH_3)_2NH$) is a secondary amine, hence it contains an imino group.
Aniline ($C_6H_5NH_2$) is a primary amine.
Answer: Dimethyl amine
Hence, the correct answer is option: 'C'.