Q61 of 400 Page 193

Name one ore of mercury. Which mercury compound is present in this ore? Write its chemical formula.

Cinnabar is the ore from which mercury is extracted. The mercury compound present in Cinnabar is Mercury(II) Sulphide.

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60 Name any five metals which are purified by electrolytic refining method. 61 Which metal is extracted from calamine ore? 61 How is copper extracted from its sulphide ore (copper glance), Cu2S? Explain with equations of the reactions involved. 61 What is an alloy? Give two examples of alloys.