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If the solubility product K("sp") of a s...

If the solubility product `K_("sp")` of a sparingly soluble salt `MX_(2)" at "25^(@) C " is " 1.0 xx 10^(-11)` , then the solubility of the salt in mole `"litre"^(-1)` at this temperature will be

A

`2.46 xx 10^(14)`

B

`1.36 xx 10^(-4)`

C

`2.60 xx 10^(-7)`

D

`1.20 xx 10^(-10)`

Text Solution

Verified by Experts

The correct Answer is:
B
`MX_(2)hArr underset ((S))(M^(+)) + underset ((2S)) (2X^(-)), K_(sp) = 4S^(3)`
`S = root3 (K_(sp)/4) =root3((1xx10^(-11))/4) = 1.35 xx 10^(-4)`
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