When HCl gas is passed through a saturated solution of NaCl , pure NaCl is precipitated This is due

Question

When HCl gas is passed through a saturated solution of NaCl , pure NaCl is precipitated This is due to\

Professor PC Thomas Classes · Answer

$\mathrm{NaCl} ightleftharpoons \mathrm{Na}^{+}+\mathrm{Cl}^{-}$\ $\mathrm{Cl}^{-}$is the common ion as shown above. In presence of the stronger electrolyte, HCl , which has a common ion with NaCl , the weaker electrolyte $(\mathrm{NaCl})$ will be precipitated. This is called common ion effect .\