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

A metal cabonate X on rectin g with an acid agives a gas which when pa

1.	A metal cabonate X on rectin g with an acid agives a gas which when passsed through a solution Y gives the carbonate back. On the other hand, a gas G that is obtained at anode udring electrolysis of brine is passsed on dry y, it gives a compound Z, used for disinfecting drinking water . Identify X,Y,G and Z.
Answer» X is calcium carbonate and the gas evovled is carbon dioxide when calcium carbonate reats with acid . `CaCO_(3)+Dil.2HCIrarrCaCI_(2)+H_(2)O+CO_(2)uparrow` Solution Y is lime water `Ca(OH)_(2)+CO_(2)rarrCaCO_(3)downarrow+H_(2)O` The gs evolved at anode during electroysis of brine is chlorine (G) `2NaCI+2H_(2)Orarr2NaOH+CI_(2)(g)+H_(2)(g)` When chlorine gs is passed through dry `Ca(OH)_(2)(Y)`, it produces bleahing dpowder (Z) used ofr disinfecting dringking water . `Ca(OH_(2))+CI_(2)rarrCaOCI_(2)+G_(2)O` Hence Z is calcium xoy chloride `(CaOCI_(2))` or bleacking powder.