Name any five metals which are purified by electrolytic refining method.

60 Explain how, mercury is extracted from its sulphide ore (cinnabar). Give equations of the reactions involved. 60 In the electrolytic refining of a metal M, what would you take as anode, cathode and electrolyte? 61 Which metal is extracted from calamine ore? 61 Name one ore of mercury. Which mercury compound is present in this ore? Write its chemical formula.