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Qualitative Analysis: Cations
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Confirmatory tests and coloured precipitates
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Difficulty 1 of 3
qc121
Among the sulphides of group IV, the one that is white is
A
MnS
B
NiS
C
CoS
D
ZnS
Answer: D
Group IV sulphides precipitate in ammoniacal medium.
ZnS
is white,
MnS
is buff or flesh coloured, and
NiS
and
CoS
are black.
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