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प्रश्न
Burning of matchstick is an example for chemical reaction caused by _______
पर्याय
contact in physical states
electricity
light
catalyst
MCQ
रिकाम्या जागा भरा
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उत्तर
Burning of matchstick is an example for chemical reaction caused by light.
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Effects of Chemical Changes: Production of Heat, Light, Sound and Pressure
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संबंधित प्रश्न
_______ undergoes rusting.
In Haber’s process of producing ammonia _______ is used as a catalyst.
Iron objects undergo rusting when exposed to _______ and _______.
Electrolysis of brine solution gives _______ gases.
Formation of slaked lime from quicklime is an endothermic reaction.
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 is pollution?
On heating, calcium carbonate gives calcium oxide and oxygen. Is it an exothermic reaction or an endothermic reaction?
Name the nitrate which does not produce brown gas on heating?
