Question

name a chemical change which takes place in present of
a heat, b light, c electricity ​

Answer 1

Answer:

..

Explanation:

Answer 2

Explanation:

Heat:

1. Burning of paper.

2. Cooking of food needs heat.

Light

1. Formation of food by plants i.e. photosynthesis need light.

2. Hydrogen and chlorine react in presence of light

Electricity

1. Water breaks into hydrogen and oxygen on passing electricity.

2. Sodium chloride solution breaks up into its components sodium and Chlorine on passing electric current through sodium chloride solution.