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  3. The total number of Black coloured sulphides is

. The total number of Black coloured sulphides is

Among PbS, CuS, HgS, MnS, Ag2S, NiS, CoS, Bi2S3 and SnS2, the total number of BLACK coloured sulphides is

 

Best Answer

The total number of BLACK coloured sulphides is 7

This include PbS, CuS, HgS, MnS, Ag2S, NiS, CoS, Bi2S3 and SnS2

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