MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryIonic equilibriumSalt Hydrolysis

The pH of 0.1 M solution of the following salts increases in the order :

A.NaCl < NH4Cl < NaCN < HCl

B.HCl < NH4Cl < NaCl < NaCN✓ Correct

C.NaCN < NH4Cl < NaCl < HCl

D.HCl < NaCl < NaCN < NH4Cl.

Explanation

NaCl; Neutral solution; pH = 7 4 NH Cl ; Cation undergoes hydrolysis; pH less than 7 NaCN; anion undergoes hydrolysis; pH greater than 7 HCl; strong acid Thus, pH in increasing order 4 HCl < NH Cl < NaCl < NaCN ->

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