s-Block ElementsHard

Question

The commercial salt is purified by passing

Options

A.H2S gas through an alkaline solution of salt
B.HCl gas through a saturated solution of salt
C.H2 gas through a solution of salt
D.Cl2 gas through a saturated solution of salt

Solution

The commontable salt is prepared by passing HCl gas through a saturated by solutionof salt. The precipition is due to common ion effect.
    NaCl + H+ + Cl- → NaCl
Salt solution                 ppt

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