Correct option is B
The correct answer is (b) Smelting
Explanation:
● Smelting is an extractive metallurgy process that uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind.
● It requires heating the ore beyond its melting point.
Information Booster:
● A "flux" is often added during smelting to remove impurities.
● Common metals extracted through smelting include iron, copper, and silver.
Additional Knowledge:
● Froth Flotation – A process for selectively separating hydrophobic materials from hydrophilic ones in mineral processing.
● Electrolysis – A technique that uses direct electric current to drive an otherwise non-spontaneous chemical reaction.