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प्रश्न
On heating, calcium carbonate gives calcium oxide and oxygen. Is it an exothermic reaction or an endothermic reaction?
एक पंक्ति में उत्तर
उत्तर
Endothermic reaction.
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Effects of Chemical Changes: Production of Heat, Light, Sound and Pressure
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संबंधित प्रश्न
_______ undergoes rusting.
Which of the following factor induces electrtolysis?
Iron objects undergo rusting when exposed to _______ and _______.
Electrolysis of brine solution gives _______ gases.
Decomposition of lead nitrate is an example for a chemical reaction caused by light.
Match the following.
| Rusting | Photosynthesis |
| Electrolysis | Haber’s process |
| Thermolysis | Iron |
| Food | Brine |
| Catalysis | Decomposition of limestone |
Explain any three conditions that are required for a chemical reaction to take place. Give example.
Lead nitrate produces brown gas on heating.
Photochemistry deals with chemical reactions involving light.
Name the nitrate which does not produce brown gas on heating?
