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If the solubility of an aqueoues solutio...

If the solubility of an aqueoues solution of `Mg(OH)_(2)` be X mole litre, then `K_(SP)` of `Mg(OH)_(2)` is:

A

`4X^(3)`

B

`108X^(5)`

C

`27X^(4)`

D

`9X`

Text Solution

Verified by Experts

The correct Answer is:
A
`Mg(OH)_(2)hArr underset(S)(Mg^(2+))+underset(2S)(2OH^(-))`
`K_(SP)= [Mg^(2+)][OH^(-)]^(2)`
`=Sxx(2S)^(2)=4S^(3)= 4X^(3)`
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