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Chemistry Question on Hydrolysis of salts

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

A

NaCl<NH4Cl<NaCN<HCl\text{NaCl} < \text{NH}_4\text{Cl} < \text{NaCN} < \text{HCl}

B

HCl<NH4Cl<NaCl<NaCN\text{HCl} < \text{NH}_4\text{Cl} < \text{NaCl} < \text{NaCN}

C

NaCN<NH4Cl<NaCl<HCl\text{NaCN} < \text{NH}_4\text{Cl} < \text{NaCl} < \text{HCl}

D

HCl<NaCl<NaCN<NH4Cl\text{HCl} < \text{NaCl} < \text{NaCN} < \text{NH}_4\text{Cl}

Answer

HCl<NH4Cl<NaCl<NaCN\text{HCl} < \text{NH}_4\text{Cl} < \text{NaCl} < \text{NaCN}

Explanation

Solution

The correct option is (B): 0.2 M