Question

Match the reagents required for the given reactions: I. Oxidation of primary alcohols to aldehydes (p) \(NaBH_4\)
II. Butan-2-one to Butan-2-ol (q) 85% phosphoric acid at 440 K
III. Bromination of Phenol to 2, 4, 6- (r) PCC Tribromophenol
IV. Dehydration of propan-2-ol to (s) Bromine water propene

• A. I — (r), II — (p), III — (s), IV — (q)
• B. I — (q), II — (r), III — (p), IV — (s)
• C. I — (s), II — (q), III — (p), IV — (r)
• D. I — (p), II — (s), III — (r), IV — (q)

Hint:

For oxidation reactions, NaBH$_4$ is commonly used, and for reduction reactions, phosphoric acid is often the reagent.

Answer 1

The Correct Option is A

- The oxidation of primary alcohols to aldehydes is done using PCC Tribromophenol.
- Butan-2-one is reduced to Butan-2-ol using \(NaBH_4\).
- Bromination of Phenol to 2, 4, 6-tribromophenol is done using Bromine water propene.
- Dehydration of propan-2-ol leads to propene when treated with 85% phosphoric acid at 440 K