Name a chemical change which takes place in presence of: Heat Light Electricity
Name a chemical change which takes place in presence of:
Heat
Light
Electricity
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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
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