Q 2559223114.     A solution which is `10^-3` M each in `Mn^(2+), Fe^(2+), Zn^(2+)` and `Hg^(2+)` is treated with `10^-16` M sulphide ion. If `K_(sp)` of MnS, FeS, ZnS and HgS are `10^-15, 10^-23, 10^-23, 10^-26` and `10^-54` , respectively, which one will precipitate first ?

JEE 2003 Prelims
A

FeS

B

MgS

C

HgS

D

ZnS

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