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a)The metal is mercury.
b) HgS -----> (on roasting) HgO + S
HgO -----> (on heating) Hg + O2
c)No, Mercury can't displace Cu from copper sulphate solution., because it mercury is less reactive than copper.
b) HgS -----> (on roasting) HgO + S
HgO -----> (on heating) Hg + O2
c)No, Mercury can't displace Cu from copper sulphate solution., because it mercury is less reactive than copper.
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