JEE Main Chemistry question

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

Not in JEE Main or NEET syllabus

Wolframite ore is separated from tin stone ore by the process of

(A)Calcination
(B)ElectromagneticCorrect
(C)Roasting
(D)Smelting

Answer: (B)

Solution

Wolframite () is magnetic while cassiterite (tin stone, ) is not, so an electromagnetic separator can pull out the wolframite, leaving the non-magnetic

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Question ID VK-145279