Ionic EquilibriumHard
Question
Solubility product constant (Ksp) of salts of types MX, MX2 and M3X at temperature ′T′ are 4.0 × 10-s, 32 × 10-14 and 2.7 × 10-15, respectively. Solubilities (mole dm-3) of the salts at temperature ′T′ are in the order
Options
A.MX > MX2 > M3X
B.M3X > MX2 > MX
C.MX2 > M3X > MX
D.MX > M3X > MX2
Solution
Solubility of (MX) = 
= 2 × 10-4
Solubility of (MX2) = 8 × 10-5
Solubility of (M3X) = 1 × 10-4
∴ MX > M3X > MX2
= 2 × 10-4Solubility of (MX2) = 8 × 10-5
Solubility of (M3X) = 1 × 10-4
∴ MX > M3X > MX2
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