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JEE Main Chemistry question

ChemistryGeneral Principles and Processes of Isolation of Elements (Metallurgy)JEE Main

Not in JEE Main or NEET syllabus

Heating of ore in presence of air to remove impurity of sulphur is called:

Answer: (B)

Solution

Roasting heats a (typically sulphide) ore in air to oxidise and remove sulphur as , converting the ore to its oxide. Calcination applies

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Question ID VK-145422