Question

Please ans this as fast as u can...............

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

Answer 1

Answer:

Step-by-step explanation:

Calcium carbonate gives carbon dioxide gas when reacts with hydrochloric acid.

CaCO3 + 2HCl ⇨ CaCl2 + CO2 + H2O

Carbon dioxide turns lime water milky when passed through it because of formation of calcium carbonate. When carbon dioxide; so formed; is passed through lime water, lime water turns milky because of the formation of calcium carbonate.

CO2 + Ca(OH)2 ⇨ CaCO3 + H2O

On the electrolysis of brine, chlorine gas is deposited over anode which gives calcium oxychloride (Bleaching powder) on passing over slaked lime. The bleaching powder is used in disinfecting the drinking water.

Ca(OH)2 + Cl2 ⇨ CaOCl2 + H2O

Bleaching powder is used for disinfecting drinking water.

Therefore;

Metal carbonate ‘X’ is calcium carbonate.

Solution ‘Y’ is lime water (Calcium hydroxide).

Gas ‘G’ is chlorine gas.

Dry ‘Y’ is dry calcium hydroxide (dry slaked lime).

Compound ‘Z’ is bleaching powder (Calcium oxychloride).

Answer 2

X is calcium carbonate.

CaCO3 + HCl ------>CaCl2 +H2O +CO2

This carbon dioxide gas when passed through calcium hydroxide again gives calcium carbonate.

Ca(OH)2 + CO2 ------->CaCO3 +H2O


Y is calcium hydroxide.

During electrolysis of sodium chloride we obtain sodium at cathode and chlorine at anode.

when chlorine gas is passed through dry lime water gives bleaching powder

G is Chlorine.

Z is Sodium as well as bleaching powder as per ur question.