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Question

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.

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Solution

(a) Mercury
(b) Roasting
(c) CaSiO3
(d) Cryolite
(e) Graphite


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