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Relation between hydrolysis constant and...

Relation between hydrolysis constant and dissociation constant are given. Which is the correct formula for `MgCl_(2)`.

A

`K_(h) =(K_(w))/(K_(a))`

B

`K_(h) =(K_(w))/(K_(b))`

C

`K_(h) =(K_(w))/(K_(a)xxK_(b))`

D

`K_(w) =(K_(h))/(K_(b))`

Text Solution

Verified by Experts

The correct Answer is:
B
For a salt of weak base and strong acid like `MgCl_(2)` , the relation is as
`K_(h) = (K_(w))/(K_(b))`
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