The extraction of metal from the ore is done by ' smelting' which involves?
A ) heating and oxidation
B ) heating and electrolysis
C ) heating and chemical reaction ✅
D ) Water
Explanation:
Smelting 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. Smelting is a method used in the extraction of metals that involves heating the metal oxide produced from roasting with a reducing agent, such as carbon, to obtain pure metal.