is heated
in the absence of oxygen?
(b) a mixture of
and
is heated?
Answer:
(a) Zinc oxide and carbon dioxide
are produced when
is
heated in the absence of oxygen. This process is called calcination.
Moisture and volatile impurities are
also expelled out during the process of calcination.
(b) Copper metal and sulphur
dioxide gas are produced when a mixture of
and
is heated.
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