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Normality

The enthalpy ...

Question

The enthalpy of neutralization of four acids $H A$ , $H B$ , $H C$ and $H D$ with $N a O H$ are $- 13, - 12, - 11$ and $- 10$ Kcal/mol. Which salt has maximum degree of hydrolysis?

A

1 M NaA

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B

1 M NaB

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C

1 M NaC

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D

1 M NaD

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Solution

The correct option is B $1 M NaD$
$h = \sqrt{\frac{K_{w}}{K_{a} C}}$
|Enthalpy of neutralisation| $↓ K_{a} ↓ h ↑$

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