Chemistry
Grade-10
Easy
Question
Heating of ore below its fusion temperature in the absence of air is known as ________.
- Calcination
- Roasting
- Smelting
- Hydrometallurgy
Hint:
Calcination is a process by which ore is heated at high temperature in limited supply of air.
The correct answer is: Calcination
Calcination is the process in which the ore of the metal is heated to high temperatures, just below its fusion temperature, in the absence or limited supply of air.
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