When HCI gas is passed through a saturated solution ofcommon salt, pure NaCl is precipitated because:(a) The impurities dissolve in HCl(b) HCl is highly soluble in 72(c) The [Na landclexceeds the solubilityproduct of NaCIThe solubility product of NaCl is lowered bythe chloride ion from aqueous HCI(d)

When HCI gas is passed through a saturated solution ofcommon salt, pur

1.	When HCI gas is passed through a saturated solution ofcommon salt, pure NaCl is precipitated because:(a) The impurities dissolve in HCl(b) HCl is highly soluble in 72(c) The [Na landclexceeds the solubilityproduct of NaCIThe solubility product of NaCl is lowered bythe chloride ion from aqueous HCI(d)
Answer» We will observe the formation of pure NaClsolid pricipitationfrom the solution.The principle behind this phenomenon is LeChatelier'sprinciple.When you have a saturated NaCl solution you have the equilibrium:NaCl(s) <=> Na+(aq) + Cl-(aq)When you add more Cl-to the already saturated solution, the equilibrium must shift to the left to undo the change which results in forming more NaCl(s). When your solution contains no solid phase and all of the NaCl is present as ions in solution then you are able to produce very pure NaCl(s) by bubbling HCl(g) into the saturated solution of NaCl.