First slide

Solubility product(KSP)

Question

Statement 1: The solubility of salts of weak acid and strong base increases with increase in $p^{H}$ .
Statement 2: At lower pH, equilibrium shifts in forward direction in the ionization of salt of weak acid and strong base

Moderate

A

Both statements 1 and 2 are correct
B

Statement 1 is correct statement 2 is incorrect
C

Statement 1 is incorrect statement 2 is correct
D

Both statements 1 and 2 are incorrect

Solution

$S = {\{K_{SP} \frac{[H^{+}] + Ka}{Ka}\}}^{\frac{1}{2}}$
Thus solubility ‘S’ increase with increase in $[H^{+}] (or) ↓ in pH$ ;
Alternate method;
${Na}_{3} {PO}_{4} ⇌ 3 {Na}^{+} + {PO}_{4}^{- 3}; At lower p^{H}, the H^{+} added removes phosphate ion to form a weak acid; Equilibrium shifts in forward direction$

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