A metal obtained directly by roasting of its sulphide ore is

A metal obtained directly by roasting of its sulphide ore is

  1. A

    Cu

  2. B

    Pb

  3. C

    Hg

  4. D

    Zn

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    Solution:

    When conc. HgS ore is roasted 

    HgS+O2773873KHg+SO2

    At this temperature, mercury vaporises and the vapours are condensed to the liquid metal. Mercury so obtained is about 99.7% pure. 

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