Q3 of 31 Page 53

What chemical process is used for obtaining a metal from its oxide?

A metal can be extracted from its oxide by the process of reduction.

Define the terms: (i) mineral (ii) ore, and (iii) gangue. .

Name two metals which are found in nature in the free state.

Zinc oxide, magnesium oxide and copper oxide were heated, turn by turn, with zinc, magnesium and copper metals as shown in the following table:

In which cases will you find displacement reactions taking place?

Which metals do not corrode easily?

Questions · 31

3. Metals and Non-metals

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