1.

Let the solubility of an aqueous solution of Mg(OH)_(2), be "X^(@) then its K_(sp) is

Answer»

`4x^(3) `
` 108x^(5) `
` 27x^(4)`
` 9x`

Solution :` MG (OH) _2 hArr Mg^(+ + )+2 underset( 2x) OH^(-) `
` K_(sp)= (S) _x (2S)_(2x) ^(2)=4x^(3) `


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