Exams › SSC CGL (Prelims) › GK

Which of the following is a chemical change?

1. Melting of ice
2. Evaporation of water
3. Burning of paper
4. Boiling of milk

Correct answer: Burning of paper

Solution

Burning of paper is a chemical change because it produces new substances such as ash, carbon dioxide, and water vapor. The other options are physical changes involving only a change of state.

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