A very dilute acidic solution of `Cd^(2+) and Ni^(2+)` gives only yellow ppt. of CdS on passing `H_(2)S`, this is due to

Options

A. Solubility product `(K_(sp))` of CdS is more than that of NiS
B. Solubility product `(K_(sp))` of CdS is less than that of NiS
C. `Cd^(2+)` belong to IIB group while `Ni^(2+)` belongs to `IV^(th)` group
D. CdS is insoluble in yellow ammonium sulphide (YAS)

Answer

B

Explanation

Basic radicals are classified on the basis of increasing order of `K_(sp)Cd^(2+)` in II group while `Ni^(2+)` in IV group.