NEET levelSingle correct optionDifficulty 1 of 3mt066
Calcination is carried out
Aabove the melting point of the ore with a flux
Bin a large excess of air
Cin the absence or in a limited supply of air
Din a stream of pure oxygen
Answer: C
Calcination heats an ore strongly, below its melting point, in no air or in limited air. It drives off moisture and volatile matter such as COX2. Excess air is the condition for roasting.