Question

Which of the following statements are true regarding smelting?

• A. Ore is heated to make chemical changes.
• B. It is a hydrometallurgical process.
• C. Reduction of ore occurs in smelting.
• D. Slag is not formed during the smelting process.

Answer 1

Answer: (A), (C)

The correct options are
A

Ore is heated to make chemical changes.

C

Reduction of ore occurs in smelting.

In smelting, heat is used for causing chemical changes in the ore.

In smelting oxides of metals are reduced to metals.

To remove the dissolved impurities flux is added which forms slag and can be removed easily.