Which of the following will react with CHCl3 + alc. KOH?
Biomolecules · Class 12 · JEE Main Previous Year Question
Which of the following will react with + alc. KOH?
- a
Adenine and thymine
- b
Thymine and proline
- c✓
Adenine and lysine
- d
Adenine and proline
Adenine and lysine
Step 1: Carbylamine Test Rule — The reaction with and alcoholic is a test specifically for primary groups.
Step 2: Analyzing the Structures — Adenine has a primary amino group at C6. Lysine is a basic amino acid with a primary amino group at the end of its side chain.
Step 3: Identifying the Pair — Thus, both Adenine and Lysine will give the carbylamine test. Correct option is (c).
Key Point: Proline is a secondary amine (imino acid) and fails this test.
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