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Question
A solution which is 10−3M each in Mn2+,Fe2+,Zn2+ and Hg2+ is treated with 10−16M sulphide ion. If Ksp of MnS, FeS, ZnS, and HgS are 10−15,10−23,10−20and 10−54 respectively, which one will precipitate first?
A solution which is 10−3M each in Mn2+,Fe2+,Zn2+ and Hg2+ is treated with 10−16M sulphide ion. If Ksp of MnS, FeS, ZnS, and HgS are 10−15,10−23,10−20and 10−54 respectively, which one will precipitate first?
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Solution
The correct option is C HgS
Salt having low Ksp precipitates first. Thus HgS will precipitate first.
Salt having low Ksp precipitates first. Thus HgS will precipitate first.
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