Multiple choice general knowledge science & technology

Calcination is the process in which the ore is strongly heated in the presence of air?

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Calcination is the thermal treatment of an ore strongly in the absence or limited supply of air to remove volatile impurities like water or carbon dioxide. Roasting, in contrast, heats the ore strongly in the presence of excess air. Because calcination involves the absence of air, the statement is false.

Keep practicing — related questions