Ionic EquilibriumhardMCQ SINGLE⭐ Must-Do

What is the underlying chemical reason that is purified by passing gas through its saturated solutioIonic Equilibrium Chemistry Question

Question

What is the underlying chemical reason that $NaCl$ is purified by passing $HCl$ gas through its saturated solution?

Answer: B

💡 Solution & Explanation

The massive influx of $Cl^-$ from $HCl$ dramatically increases the Ionic Product of $Na^+$ and $Cl^-$. Since $Q_{sp} > K_{sp}$ for $NaCl$, it precipitates, leaving highly soluble impurities behind.

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