Question

Solubility product expression of salt $M{X}_4$ which is sparingly soluble with a solubility $s$ can be given as

• A. $256s^5$
• B. $16s^3$
• C. $5s$
• D. $25s^4$

Answer 1

Answer: (A)

$M{X}_4\rightleftharpoons \underset{\text{s}}{M^{+}}+\underset{\text{4s}}{4X^{-}}$
$K_{sp}=s\times (4s{)}^4$
$=256s^5$