Chemistry

Name the following:
(a) A metal which is found abundantly in the Earth's crust.
(b) The process used for the enrichment of sulphide ore.
(c) A metal present in cryolite other than sodium.
(d) A metal which is unaffected by dilute or concentrated acids.
(e) A metal present in period 3, group 1 of the periodic table.
(f) The property possessed by metals by which they can be beaten into sheets.
(g) A compound added to lower the fusion temperature of electrolytic bath in the extraction of aluminium.
(h) The ore of zinc containing its sulphide.
(i) The solution used to react with Bauxite as a first step in obtaining pure aluminium oxide, in the Baeyer's process.
(j) The compound added to pure alumina to lower the fusion temperature during the electrolytic reduction of alumina.

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(a) Aluminium

(b) Froth floatation process

(d) Gold

(e) Sodium

(f) Malleability

(g) Cryolite (Na₃AlF₆)

(h) Zinc Blende (ZnS).

(i) Sodium hydroxide

(j) Cryolite (Na₃AlF₆)

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