7(a)
Name the following:
(i) The process of coating of iron with zinc.
(ii) An alloy of lead and tin that is used in electrical circuits.
(iii) An ore of zinc containing its sulphide.
(iv) A metal oxide that can be reduced by hydrogen.
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(i) Galvanization
(ii) Solder [fuse metal]
(iii) Zinc blende [ZnS]
(iv) Copper oxide [CuO]