The Sulphide which is insoluble in dilute hydrochloric acid is

The Sulphide which is insoluble in dilute hydrochloric acid is
A. FeS
B. CuS
C. ZnS
D. Na2S

Correct Option: Answer is B
Sulphides like PbS (lead (II) sulphide) and CuS (copper (II) sulphide) are insoluble in acidified solutions.

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