Question

If the solubility of $Ag_2CrO_4$ is S mole/litre.Then its solubility product is

• A. $S^2$
• B. $S^3$
• C. $4S^3$
• D. $2S^3$

Answer 1

Answer: (C)

$4S^3$

Answer 2

$Ag_{2}CrO_{4} {<=>} \underset{\text{2S}}{{2Ag^{+}}} \underset{\text{s}}{{CrO_{4}^{-2}}}$ $K_{sp}=[Ag^{+}]^{2} [CrO^{-2}_{4}] =(2S)^{2}(S)=4S^{3}$