1.

Name the following:(a) A metal which is liquid at room temperature(b) The process of heating an ore to a high temperature in the presence of air.(c) The compound formed by the reaction between calcium oxide and silica(d) A compound which is added to lower the fusion temperature of the electrolytic bath in the extraction of aluminium.(e) Name an allotrope of a non-metal that allows electricity to pass through it.

Answer»

(a) Mercury

(b) Roasting

(c) CaSiO3

(d) Cryolite

(e) Graphite



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