Question

Solubility of a salt $A_3{B}_4$ formula is ‘s’, its solubility product is

• A. $6912s^7$
• B. $5184s^7$
• C. $s^7$
• D. $7s^7$

Answer 1

The correct option is A $6912s^7$

$A3B4\to 3A^{+}+2I^{-}{K}_{sp}=\left(3s{)}^3\right(4s{)}^4=27s^3.256s^4=6912s^7$