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Concentration CN^(-) in 0.1 M HCN is: [K...

Concentration `CN^(-)` in 0.1 M HCN is: `[K_(a) = 4 xx 10^(-10)]`

A

`2.5 xx 10^(-6) M`

B

`4.5 xx 10^(-6) M`

C

`6.3 xx 10^(-6) M`

D

`9.2 xx 10^(-6) M`

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The correct Answer is:
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