Which of teh following will have hishest ksp for their sulphide 1. Zn2+ , Cu2+ 2 Zn 2+, Mn 2+ 3 Cd 2+ , Bi 2+ 4 Pb2+ , Hg2+

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Q. A solution which is

10^{- 3} M

each in

M n^{2 +}, F e^{2 +}, Z n^{2 +}

and

H g^{2 +}

is treated with

10^{- 16} M

sulphide ion. If

K_{s p}

of MnS,FeS,ZnS andHgS are

10^{- 15}, 10^{- 23}, 10^{- 20}

and

10^{- 54}

respectively, which one will precipitate first?

Q. A solution which is

10^{- 3}

M each in

M n^{2 +}, F e^{2 +}, Z n^{2 +}

and

H g^{2 +}

is treated with

10^{- 16}

M sulphide ion. If

K_{s p}

M n S, F e S, Z n S

and

H g S

are

10^{- 15}, 10^{- 25}, 10^{- 20}

and

10^{- 54}

respectively, which one will precipitate first?

A solution which has $10^{- 3}$ M each of $M n^{2 +}, F e^{2 +}, Z n^{2 +}$ and $H g^{2 +}$ is treated with $10^{- 16}$ M sulphide ion. If $K_{s p}$ of $M n S$ , $F e S$ , $Z n S$ and $H g S$ are $10^{- 15}$ , $10^{- 23}$ , $10^{- 20}$ and $10^{- 54}$ respectively, which one will precipitate first?