Which one of the following forms an aldehyde and then an acid on heating with acidified potassium permanganate?

Question

Which one of the following forms an aldehyde and then an acid on heating with acidified potassium permanganate? (A) sec-Butyl alcohol (B) tert-Butyl alcohol (C) Butyl alcohol (D) Isopropyl alcohol

Tardigrade Admin · Accepted Answer

Since, butyl alcohol is a primary alcohol, it first gives an aldehyde and then carboxylic acid on oxidation. While, secondary and tertiary alcohols first give ketones and then carboxylic acids on oxidation.

Q. Which one of the following forms an aldehyde and then an acid on heating with acidified potassium permanganate?

sec-Butyl alcohol

tert-Butyl alcohol

Butyl alcohol

Isopropyl alcohol

Since, butyl alcohol is a primary alcohol, it first gives an aldehyde and then carboxylic acid on oxidation. While, secondary and tertiary alcohols first give ketones and then carboxylic acids on oxidation.