Question

Discuss the importance of decomposition reaction in metal industries with three points

Answer 1

The main three points of decomposition are:-

1.Thermal decomposition is used for the production of calcium oxide (quick lime ) from calcium carbonate which is a major constituent of cement.

2. Through electrolytic decomposition metals are extracted.

example:- sodium from sodium chloride.

3.Through aluminium is also electrolytically extracted from its ore bouxite (Al2O3).

Answer 2

Importance of decomposition reaction in metal industries are :-

(i) Molten NaCl is electrolytically decomposed to form sodium metal.

(ii) Aluminium metal is obtained by electric decomposition of bauxite ore mixed with cryolite.

(iii) Carbonate ores are thermally decomposed to give metal oxide which on reduction give metal.

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