First slide

Salt hydrolysis :

Question

Aqueous solution of copper sulphate

Easy

A

turns blue litmus red
B

turns red litmus blue
C

does not affect litmus
D

affect both red and blue litmus

Solution

Aqueous solution of CuSO₄ is acidic due to anioinic hydrolysis.
P^H of a salt of strong acid and weak base is $\frac{1}{2} [p^{K_{w}} - p^{k_{b}} - logC]$

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