1.

Solubility of `MX_(2)` type electrolytes is `0.5xx10^(-4) mol//L`, then find out `K_(sp)` of electrolytes.A. `5xx10^(-12)`B. `25xx10^(-10)`C. `1xx10^(-13)`D. `5xx10^(-13)`

Answer» Correct Answer - D
`underset(Solubility 0.5xx10^(-4)M)(MX_(2)) rarr underset(0.5xx10^(-4)M)(M^(2+))+underset(2xx0.5xx10^(-4)M)(2X^(-))`
(On `100%` ionisation)
` :. K_(sp)` of `MX_(2)=[M^(2+)][X^(-)]^(2)`
`=(0.5xx10^(-4))(1.0xx10^(-4))^(2)`
`=0.5xx10^(-12)=5xx10^(-13)`


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