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Among PbS, CuS, HgS, MnS, Ag(2)S, NiS, C...

Among PbS, CuS, HgS, MnS, `Ag_(2)S`, NiS, CoS, `Bi_(2)S_(3)` and `SnS_(2)`, total number of black coloured sulphides is :

A

Four

B

Six

C

Five

D

Three

Text Solution

Verified by Experts

The correct Answer is:
B
`PbS, CuS, HgS, Ag_(2)S, NiS` and CoS are black coloured.
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