Liquid vegetable oils are converted to solid margarine by the use of

  1. A. hydrogen gas
  2. B. chlorine gas
  3. C. carbon dioxide gas
  4. D. oxygen gas

Correct Answer: A. hydrogen gas

Explanation

Liquid vegetable oils undergo hydrogenation, a process where hydrogen gas is added across the double bonds of unsaturated fats in the presence of a catalyst, converting them into solid fats like margarine.

Related questions on Chemistry

Practice more NDA GAT questions