Q. The $K_{sp}of\ Ca_{3}\left( PO_{4} \right)_{2}$ is
A) $\left\lbrack Ca^{2 +} \right\rbrack\left\lbrack PO_{4}^{3 -} \right\rbrack^{2}$
B) $\left\lbrack Ca^{2 +} \right\rbrack^{3}\lbrack PO_{4}^{3 -}\rbrack$
C) $\left\lbrack Ca^{2 +} \right\rbrack\lbrack PO_{4}^{3 -}\rbrack$
D) $\left\lbrack Ca^{2 +} \right\rbrack^{3}\left\lbrack PO_{4}^{3 -} \right\rbrack^{2}$
Explanation
(d)
$Ca_{3}\left( PO_{4} \right)_{2} \rightleftharpoons 3{Ca}^{2 +} + 2{PO}_{4}^{3 -}$
$K_{sp} = \left\lbrack Ca^{2 +} \right\rbrack^{3}\left\lbrack PO_{4}^{3 -} \right\rbrack^{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.