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Question
_____ method is used to separate scrap-iron from other wastes in the scrap yard. 
Options:
A .  Sublimation 
B .  Magnetic separation 
C .  Handpicking 
D .  Winnowing 
Answer: Option B
:
B
Magnetic separation is a method in which magnetic particles are separated out from a mixture using a magnet.
Iron gets attracted to the magnet because of its magnetic nature. So, it can be easily separated from the waste material.

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