Name (formula is not acceptable) the gas produced in each of the following reactions:
(i) By the action of concentrated nitric acid on copper.
(ii) On warming ammonium sulphate with sodium hydroxide solution.

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Solution

Nitrogen dioxide

Ammonia

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Similar questions

	Column A	Column B
(i)	A substance that turns moist starch iodide paper blue.	Ferrous sulphate
(ii)	A compound which releases a reddish brown gas on reaction with concentrated sulphuric acid and copper turnings.	Chlorine
(iii)	A solution of this compound gives a dirty green precipitate with sodium hydroxide.	Copper nitrate
(iv)	A compound which on heating with sodium hydroxide produces a gas which forms dense white fumes with hydrogen chloride.	Lead carbonate
(v)	A white solid which gives a yellow residue on heating.	Ammonium sulphate

Name the gas evolved in following case:
The gas produced by the action of concentrated sulphuric acid on sodium chloride.

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