JEE Main Chemistry question

Chemistry General Principles and Processes of Isolation of Elements (Metallurgy)JEE Main

Not in JEE Main or NEET syllabus

The process of heating the ore strongly in excess of air so that the volatile impurities are removed and the ore is changed to oxide is known as

(A)Leaching
(B)RoastingCorrect
(C)Calcinations
(D)Froth floatation

Answer: (B)

Solution

Heating a (typically sulphide) ore strongly in excess of air, driving off volatile impurities and converting it to the oxide, is the definition of roasting. Leaching is a chemical

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Question ID VK-145233