Multiple choice

What is chemical change?

  1. Chopping onions

  2. Exploding a fire cracker

  3. Melting of ice

  4. Boiling alcohol
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Physical property: chopping and melting and boiling point is associated with a phase change. It describes an inherent characteristic of alcohol and ice. Chemical change involves a chemical reaction. At least one new substance is formed.

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