Which one of the following is NOT a chemical change ?

  1. A. Burning of coal
  2. B. Rusting of metal
  3. C. Melting of ice
  4. D. Reaction of acid with base

Correct Answer: C. Melting of ice

Explanation

The melting of ice is a change of state (solid to liquid), which is a physical change rather than a chemical reaction.

Related questions on Chemistry

Practice more NDA GAT questions