1.

Which of the following metal sulphides will be precipitated first from a solution having almost equal concentration of metal ion ?

Answer»

`FES(K_(SP)=11xx10^(-20))`
`HgS(K_(sp)=3.2xx10^(-55))`
`ZnS(K_(sp)=1.1xx10^(-22))`
`CDS(K_(sp)=3.6xx10^(-31))`

Answer :B


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