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प्रश्न
What is pollution?
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उत्तर
Unwanted change in physical, chemical, and biological properties of the environment. This is termed pollution.
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संबंधित प्रश्न
Burning of matchstick is an example for chemical reaction caused by _______
Which of the following factor induces electrtolysis?
In Haber’s process of producing ammonia _______ is used as a catalyst.
Electrolysis of brine solution gives _______ gases.
Formation of slaked lime from quicklime is an endothermic reaction.
What happens to the brine during electrolysis?
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?
