Statement 1: The solubility of salts of weak acid and strong base increases with increase in pH.Statement 2: At lower pH, equilibrium shifts in forward direction in the ionization of salt of weak acid and strong base
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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
answer is C.
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Detailed Solution
S=KSPH++KaKa12Thus solubility ‘S’ increase with increase in H+ or ↓ in pH;Alternate method;Na3PO4⇌3Na++PO4-3; At lower pH, the H+ added removes phosphate ion to form a weak acid; Equilibrium shifts in forward direction
Statement 1: The solubility of salts of weak acid and strong base increases with increase in pH.Statement 2: At lower pH, equilibrium shifts in forward direction in the ionization of salt of weak acid and strong base