Question

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, it gives a compound Z, used for disinfecting drinking water. Identity X, Y, G
and Z.
a) X = H2, Y = HCl, G = SO2 & Z = Ca(OH)2
b) X = SO2, Y = Ca(OH)2, G = CO2 & Z = Ca(OH)2
c) X = CO2, Y = Ca(OH)2, G = H2 & Z = CaOCl2
d) X = CO2, Y = Ca(OH)2, G = Cl2 & Z = CaOCl2

Answer 1

Answer:  

On the other hand, a gas G that is obtained at anode during electrolysis of brine is passed on dry Y, it gives a compound Z, used for disinfecting drinking water. Identity X, Y, G and Z. Answer: Calcium carbonate gives carbon dioxide gas when reacts with hydrochloric acid.

Explanation:

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Answer 2

Answer:

> Ca(OH)2+Cl2→CaOCl2+H2O

Bleaching powder is used for disinfecting drinking water.

Therefore, metal carbonate X is calcium carbonate, the solution Y

is lime water (Calcium hydroxide), the gas G

is chlorine gas and dry Y

is dry calcium hydroxide (dry slaked lime) and compound Z

is bleaching powder (Calcium oxychloride).