The chemical composition of cinnabar is
Correct answer: C. HgS (mercury sulfide)
- A. ZnS (zinc sulfide)
- B. PbS (lead sulfide)
- C. HgS (mercury sulfide)
- D. (d) FeS (iron sulfide)
Explanation
Cinnabar is the most common ore of mercury and has a bright red color due to its chemical composition.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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