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Q.

$P^{H}$ of solution of salt of weak acid and weak base is calculated as

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a

$P^{H} = 7 + \frac{1}{2} [P^{K_{a}} + P^{K_{b}}]$

b

$P^{H} = 7 + \frac{1}{2} [P^{K_{a}} - P^{K_{b}}]$

c

$P^{H} = 7 - \frac{1}{2} [P^{K_{a}} - P^{K_{b}}]$

d

$P^{H} = 7 - \frac{1}{2} [P^{K_{a}} + P^{K_{b}}]$

answer is B.

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Detailed Solution

Salts of weak acids and weak bases | Salt Hydrolysis

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