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The first and second dissociation consta...

The first and second dissociation constants of an acid `H_(2)A` are `1 xx 10^(-5)` and `5 xx 10^(-10)` respectively. The overall dissociation constant of the acid will be

A

`4xx10^(-15)`

B

`5xx10^(-15)`

C

`0.2xx10^(-5)`

D

`5xx10^(-5)`

Text Solution

Verified by Experts

The correct Answer is:
B
`K=K_(1)xxK_(2)`
`k=1xx10^(-5)xx5xx10^(-10)=54xx0^(-15)`
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Knowledge Check

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