Q. Which of the following has the highest value of solubility product?
A) $CuS$
B) $Bi_{2}S_{3}$
C) $CdS$
D) $ZnS$
Explanation
(d)
$Cu^{2 +},\ Bi^{3 +}\ and\ Cd^{2 +}$ all belong to II group of qualitative analysis while $Zn^{2 +}$ belongs to IV group. The solubility product of sulphides of IV group radicals is higher as compared to that of the II group radicals.
Hence, $ZnS$ has the highest value of solubility product.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.