(i) How will you show experimentally that metals are good conductor of heat?
(ii) Describe the extraction of Mercury metal from its ore Cinnabar (HgS)
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Explanation:
1) take a metal rod and heat its one end gradually you can feel the other one becoming hot this means it is a good conductor of heat .
Bt dont try it the same to show electrical conductivity
2)as cinnebar is a sulphide ore HgS so it will undergo roasting first where it will get converted into HgO liberating SO2
again heating strongly will give you Hg from HgO
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