Question

Electrolysis is used in the extraction of metals from their ores.

• A. True
• B. False

Answer 1

The correct option is A True

Electrolysis is the process by which electric current is passed through a substance to effect a chemical change. The chemical change is one in which the substance loses or gains an electron (oxidation or reduction).

It is extensively used in metallurgical processes, such as in extraction (electrowinning) or purification (electrorefining) of metals from ores or compounds and in the deposition of metals from solution (electroplating). Example: Metallic sodium and chlorine gas are produced by the electrolysis of molten sodium chloride.

Option A is correct.