Question

During electrolysis of brine, a gas ‘G’ is liberated at anode. When this gas
‘G’ is passed through slaked lime, a compound 'C' is formed, which is used
for disinfecting drinking water.
(i) Write formula of 'G' and 'C'.
(ii) State the chemical equation involved.
(iii) What is common name of compound 'C' ? Give its chemical name.
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Answer 1

Answer:

Explanation:

Gas g is chlorine

Can(oh)2+cl2----- CaOcl2+H2o

Common name is bleaching powder

Answer 2

The answers are as follows:

(i) The formula of 'G' is Cl2 and the formula of 'C' is CaOCl2.

(ii) The chemical equations involved are:

Electrolysis of brine: 2 NaCl + 2 H2O → 2 NaOH + Cl2 + H2

When G passes through slaked lime: Ca(OH)2 + Cl2 → CaOCl2 + H2O

(iii) The common name of compound C is Bleaching powder.

Its chemical name is Calcium Hypochlorite.