Question

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

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

Answer 1

The correct option is A 256$s^5$

$M{X}_4\to M+4+4X-$

$5$ $45$

$K_{sp}=5.(45{)}^4$

$=5\times {2565}^4$

$={2565}^5$