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Enrichment of Ores

The magnetic ...

Question

The magnetic impurity present in cassiterite ore is ____________.

A

silica

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B

wolframite

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C

SnO

_{2}

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D

clay

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Solution

The correct option is D wolframite
The magnetic impurity present in cassiterite ore is wolframite ( $[F e / M n] W O_{4}),$

It contains magnetic impurities of tungstates of iron and managanese and the combination is called as wolfromite.

Option B is correct.

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Q. Assertion :Statement- I : Wolframite impurities are separated from cassiterite by electromagnetic separation. Reason: Statement- II : Cassiterite being magnetic is attached by the magnet and forms a separate heap.

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