Question

Identify the correct compound formed in the reaction \[ (CH_3)_2NH \xrightarrow[\;KMno_4\;]{} A,\qquad (CH_3)NH \xrightarrow[\;H_2SO_4\;]{} B \]

• A. Tetramethylhydrazine and dimethylhydroxylamine
• B. Dimethylphenol amine and tetramethylhydrazine
• C. Tetramethylhydrazine and tetramethylhydrazine
• D. Dimethylhydroxylamine and dimethylhydroxylamine

Hint:

Amine acid oxidation → N–N coupling; primary → NHOH formation.

Answer 1

The Correct Option is A

Step 1: Secondary amine with strong H$_2$SO$_4$ undergoes oxidation coupling to give hydrazine derivative. \[ 2 (CH_3)_2NH \rightarrow (CH_3)_2N–N(CH_3)_2 \] = tetramethylhydrazine → matches first part.
Step 2: Primary methyl amine under acidic Hg oxidation forms \[ CH_3NH_2 \rightarrow CH_3NHOH \] = dimethyl hydroxyl amine.
Step 3: Option (A) states exactly this pair. Hence → (A).