Question

Name the gas evolved in each of the following case:- [5]
i) Action of sulphuric acid on magnesium.
ii) Exposure of chlorine water to sunlight.
iii) Action of heat on Calcium carbonate.
iv) Calcium metal is added to water.
v) Action of heat on copper nitrate.

Answer 1

Answer:

I) hydrogen

ii) chlorine

iii) carbon dioxide

iv) Hydrogen

v) nictic oxide

Answer 2

Explanation:

i) Hydrogen

ii) Oxygen

iii) Carbon dioxide

iv) Hydrogen

v) Nitrogen dioxide

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