JEE Chemistry · Easy

Alcohols, Phenols and Ethers: Alcohol preparation MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Alcohol preparationEasyQuestion 780001

Question

Primary alcohols are oxidised to:
  1. A
    Aldehydes (then carboxylic acids)
    Correct
  2. B
    Ketones
  3. C
    Esters
  4. D
    Ethers

Correct answer

Aldehydes (then carboxylic acids)

Explanation

Primary alcohols: R−CH₂OH → [O] → R−CHO (aldehyde) → [O] → R−COOH (carboxylic acid). Mild oxidation (PCC) stops at aldehyde; strong oxidation (KMnO₄, K₂Cr₂O₇) gives acid.