Question

Solve this question.
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Answer 1

The gas evolved at anode during electrolysis of brine is chlorine (G) When chlorine gas is passed through dry Ca(OH)2 (Y) produces bleaching powder (Z) used for disinfecting drinking water.

Ca(OH)2 + Cl2 ------> CaOCl2 + H2O

Since Y and Z are calcium salts, therefore X is also a calcium salt and is calcium carbonate.

CaCO3 + 2HCl -------> CaCl2 + CO2 + H2O Ca(OH)2 + CO2 ---------à CaCO3 + H2O

Answer 2

Na2co3+hcl =nacl +co2