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Solubilities of Ni(OH)(2) and AgCN are S...

Solubilities of `Ni(OH)_(2)` and `AgCN` are `S_(1)` and `S_(2)`. If `K_(sp)[Ni(OH)_(2)]=2xx10^(-15)`
`K_(sp)[AgCN]=6xx10^(-17)`, then

A

`S_(1)gtS_(2)`

B

`S_(1)ltS_(2)`

C

`S_(1)=S_(2)`

D

Data is insufficient

Text Solution

Verified by Experts

The correct Answer is:
C
`Ni(OH)_(2)rarrNunderset(S_(1))i^(2+)+underset(2S_(1))(2OH^(-))`
`(S_(1))(2S_(1))^(2)=2xx10^(-15)`
`:.S_(1)=8xx10^(-6)M`
`AgCNrarrunderset(S_(2)(Ag^(+))+underset(S_(2))(CN^(-))`
`(S_(2))(S_(2))=6xx10^(-17)`
`:.S_(2)=7.8xx10^(-9)M`
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