First slide

Salt hydrolysis :

Question

Which of the following salts when dissolved in water will get hydrolysed ?

Easy

A

NaCl
B

${NH}_{4} Cl$
C

KCl
D

${Na}_{2} {SO}_{4}$

Solution

${NH}_{4} Cl$ is hydrolysed and gives $[H^{+}]$
${NH}_{4} Cl + HOH ⇌ {NH}_{4} OH + HCl$
${NH}_{4}^{+} + HOH ⇌ {NH}_{4} OH + H^{+}$

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