Multiple choice

The process in which an ore is heated in excess of air below its melting point is known as ____.

  1. roasting

  2. smelting

  3. distillation

  4. calcination
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Roasting is a metallurgical process where sulfide ores are heated in the presence of excess air. Calcination, by contrast, involves heating in the absence or limited supply of air.

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