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प्रश्न
Burning of matchstick is an example for chemical reaction caused by _______
विकल्प
contact in physical states
electricity
light
catalyst
उत्तर
Burning of matchstick is an example for chemical reaction caused by light.
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संबंधित प्रश्न
Which of the following factor induces electrtolysis?
Decomposition of lead nitrate is an example for a chemical reaction caused by light.
Light energy may come out due to chemical reactions.
Match the following.
| Rusting | Photosynthesis |
| Electrolysis | Haber’s process |
| Thermolysis | Iron |
| Food | Brine |
| Catalysis | Decomposition of limestone |
What happens to the brine during electrolysis?
On heating, calcium carbonate gives calcium oxide and oxygen. Is it an exothermic reaction or an endothermic reaction?
Explain any three conditions that are required for a chemical reaction to take place. Give example.
Chemically rust is ______.
Lead nitrate produces brown gas on heating.
Photochemistry deals with chemical reactions involving light.
