Q. The solubility product of $A l_{2} (S O_{4})_{3}$ is given by the expression

2901 196 Equilibrium Report Error

A

$[A l^{3 +}] [S O_{4}^{2 -}]$

18%

B

$[A l^{3 +}]^{2} [S O_{4}^{2 -}]$

5%

C

$[A l^{3 +}]^{3} [S O_{4}^{2 -}]^{2}$

9%

D

$[A l^{3 +}]^{2} [S O_{4}^{2 -}]^{3}$

68%

Solution:

$K_{s p} = [A l^{+ 3}]^{2} [S O_{4}^{- 2}]^{3}$