Heating of a ore below its melting point in the absence of air is known as
A. Refining
B. Calcination
C. Roasting
D. Smelting
Answer: Option B
Solution(By Examveda Team)
Calcination is the process in which the ore is heated below its melting point in absence of air.Related Questions on Chemistry
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A. Greenhouse effect
B. Fire in coal mines
C. Dry farming
D. Monsoon
E. Trade winds
The nucleus of an atom consists of
A. electrons and neutrons
B. electrons and protons
C. protons and neutrons
D. All of the above
The number of moles of solute present in 1 kg of a solvent is called its
A. molality
B. molarity
C. normality
D. formality
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