1.

A solution of 10^(-3)M each in Mn^(2+), Fe^(2+), Zn^(2+) and Hg^(2+) is heated with 10^(-16) M sulphide ion. If K_(sp) of MnS, FeS, ZnS and HgS are 10^(-15), 10^(-23), 10^(-20) nd 10^(-54) respectively which one will precipitate first ?

Answer»

FeS
MnS
HGS
ZnS

Solution :HgS which has LARGER `K_(SP)` VALUE.


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