Question

The reduction of metal oxide by carbon and carbon monoxide to the metal is called ______.

Options

• calcination

• lavigation

• lavigation

• smelting

Answer 1

The reduction of metal oxide by carbon and carbon monoxide to the metal is called smelting.

Explanation:

Smelting is a metallurgical process in which a roasted or calcined metal oxide ore is reduced to its molten metallic state using a reducing agent such as carbon or carbon monoxide at high temperatures. This reaction typically takes place in a blast furnace, where the reducing agent strips oxygen from the metal oxide to release the pure metal. Calcination and roasting are preparatory heating steps that convert ores into oxides, whereas smelting is the actual chemical reduction step.