Chemistry · Metals and Non-metals
Why is mercury obtained from cinnabar ore through two heating steps instead of direct reduction?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Mercury metal reacts with oxygen on heating
- 2Mercury oxide forms only in absence of air
- 3Mercury sulphide must first change into oxide✓
- 4Mercury sulphide melts before decomposition
Correct answer
Mercury sulphide must first change into oxide
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