Copper metal on treatemet with dilute `HNO_(3)` produces a gas X,X when passed through acidic solution of stannous chloride, a nitrogen containing compound Y is obtained. Y on reaction with nitrous acid produces a gas Z. Then

Passing H_2S gas through nitric acid produces:

A metal carbonate X on reacting with an acid gives a gas which when passed through a solution Y gives the carbonate back. On the other hand, a gas G that is obtained at anode during electrolysis of brine is passed on dry, it gives a compound Z, used for disinfecting drinking water . Identify X,Y,G and Z.

When an acid reacts with a metal, hydrogen gas is produced.

A black precipitate is obtained when H2S is passed through a dilute acidic (HCI) aqueous solution containing

A black precipitate is obtained when H2S is passed through a dilute acidic (HCI) aqueous solution containing

A metal carbonate X on reacting with an acid gives a gas which when passed through a solution Y gives the carbonate back. On the other hand, a gas G that is obtained at anode during electrolysis of brine is passed on dry Y, gives a compound Z, Z is used for disinfecting drinking water. Identify X, Y, G and Z.