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 Form 4 chemistry questions and answers on metals

During the extraction of aluminium from its ores, the ore is first purified to obtain alumina. The flow chart below shows the stages in the extraction of aluminium from alumina.
figmetals22520201502.JPG
(a) Name:
(i) Substance C1.
(ii) Process D1.
(b) Give two reasons why aluminium is used extensively in the making of cooking pans.

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