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.

Answer 1

Metal carbonate 'x' is calcium carbonate.

Solution 'y' is lime water, that is,calcium hydroxide.

Gas 'g' is chlorine gas.

Z is bleaching powder that is calcium oxychloride.