Question

When $HC{l}_{\left(g\right)}$ is passed through a saturated solution of common salt, pure $NaCl$ is precipitated because:

• A. $HCl$ is highly soluble in water
• B. The ionic product $\left[N{a}^{+}\right]\left[C{l}^{-}\right]$ exceeds its solubility product
• C. The $K_{sp}$ of $NaCl$ is lowered by the presence of $C{l}^{-}$ ions
• D. $HCl$ causes precipitation

Answer 1

The correct option is B The ionic product $\left[N{a}^{+}\right]\left[C{l}^{-}\right]$ exceeds its solubility product

Precipitation occurs when ionic product exceeds solubility product.