MCQ practice · SSC Chemistry Board questions · Chapter 10: Mineral Resources: Metals and Non-metals
Which of the following is cinnabar?
Think it through first, then pick an option.
- a HgS
- b PbS
- c ZnS
- d Cu₂S
Answer and explanation
Correct answer: a HgS
Cinnabar is mercury sulfide, HgS.
Why the other options are wrong
- b PbS: PbS is galena, the ore of lead; cinnabar is HgS.
- c ZnS: ZnS is zinc blende, the sulfide ore of zinc; cinnabar is HgS.
- d Cu₂S: Cu₂S is chalcocite, a copper ore; cinnabar is HgS.
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