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Question

How is scrap-iron separated from other wastes in a scrap yard?

A
Sublimation
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B
Magnetic separation
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C
Handpicking
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D
Winnowing
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Solution

The correct option is D Magnetic separation
Waste materials supplied to factories contain a number of scrap metals including iron ore. So, in factories, scrap iron is separated from the heap of waste materials by using big electromagnets fitted to a crane.
Option B is correct.

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