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Salt of Weak Acid and Weak Base

If pKa ...

Question

If $p K_{a}$ & $p K_{b}$ values are equal, then $p^{H}$ of the aqueous solution of the salt formed by the above acid and base is ____.

< 7

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> 7

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Cant be predicted.

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Solution

The correct option is D 7
When $p K_{a} = p K_{b}$ , pH of the solution is 7 due to neutral nature.

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Similar questions

p K_{a}

p K_{b}

p H

p H

A B

p K_{a}

H A

4

p K_{b}

	Type of Acid	Type of Base	pH of aqueous solution of salt
$(1)$	Strong acid	Strong base	Neutral
$(2)$	Strong acid	Weak base	Acidic
$(3)$	Weak acid	Strong base	Basic

= 7

< 7

> 7

P^{K a} = p^{H}

[S a l t] = [A c i d]

P^{K a} = 7

[H +]

P^{K a}

p K_{a}

5.76

p K_{b}

5.25

p H

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