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The roasting of an ore of a metal usuall...

The roasting of an ore of a metal usually results in conversion of the metal ore to the oxide. Why does the roasting of cinnabar, (HgS) produce metallic mercury rather than an oxide of mercury?

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Knowledge Check

  • Which metal exahibits more than one oxidation state:

    A
    Na
    B
    Mg
    C
    Fe
    D
    Al

  • The common method of extraction of metals from oxide ores involves :

    A
    Reduction with carbon
    B
    Reduction with aluminium
    C
    Reduction with hydrogen
    D
    Electrolytic method

  • The common method of extraction of metals from oxide ores involves :

    A
    Reduction with carbon
    B
    Reduction with aluminium
    C
    Reduction with hydrogen
    D
    Electrolytic method