Assertion: The solubility of salts of weak acids like phosphates decreases at lower pH.\ Reason : T

Question

Assertion: The solubility of salts of weak acids like phosphates decreases at lower pH.\ Reason : This is because at lower pH , concentration of cations decrease.

Professor PC Thomas Classes · Answer

(d) : The solubility of salts of weak acids like phosphates increases at lower pH because concentration of the anion decreases due to its protonation. This in turn increases the solubility of the salt so that $K_{s p}=Q_{s p}$.