Question

Electrolysis is used for refining certain metals such as copper and zinc.

• A. True
• B. False

Answer 1

The correct option is A True

Electrolysis, 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 deposition of metals from solution (electroplating). Electrolysis of salt of copper and zinc results in the deposition of pure copper and zinc on cathode of the electrolytic cell.

option A is correct