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JEE Advanced 2014Paper 1
Exam
JEE Advanced
Year
2014
Paper
Paper 1
Subject
Chemistry
Chapter
d and f Block Elements

JEE Advanced 2014 · Paper 1 · Chemistry · d and f Block Elements

Among PbS, CuS, HgS, MnS, A g _ 2 S , NiS, CoS, B i _ 2 S _ 3 and...

Among PbS, CuS, HgS, MnS, Ag2SA{g}_{2}S , NiS, CoS, Bi2S3B{i}_{2}{S}_{3} and SnS2Sn{S}_{2} , the total number of black coloured sulphides is

Correct answer

6

Step-by-step solution

Black coloured sulphides PbS,CuS,HgS,Ag2S,NiS,CoS{ PbS, CuS, HgS, A{g}_{2}S, NiS, CoS }
* Bi2S3B{i}_{2}{S}_{3} in its crystalline form is dark brown but Bi2S3 precipitate obtained is black in colour.
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