Question bank/JEE Main/Chemistry

The solubility product of a salt having general formula MX_2,
in water is: 4 × 10^-12. The concentration of M^2+ ions in the
saturated aqueous solution of the salt is...... × 10-4:
MX2 lw=k ds,d yo.k dk ty xq.kuQy 4 × 10-12 gSA rc yo.k ds
lar`Ir M2+ vk;uksa

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MX2(s) [IMAGE] M2+ (aq) + 2X- (aq)
Ksp = s. (2s)2 = 4s3 $\Rightarrow$ 4 × 10-12 = 4s3 $\Rightarrow$ s3 =
1 × 10-12
$\Rightarrow$ s = 1 × 10-4 M $\Rightarrow$ = 1 × 10-4 M

Source: Grass-G / CH-27 Chemistry Paper 2 15 Jan.docx