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Question

A very large quantity of mixture contains tiny particles of three different substances X, Y and Z. They are of the same size, cubical in shape and yellow in colour. X particles are very heavy, insoluble, non-magnetic and contribute 50% of the mixture. Y particles are very light, insoluble, non-magnetic and contribute 40% of the mixture. And Z particles are actually iron pieces. Which of the following methods can separate X, Y and Z in the fastest manner?

A
Winnowing - Magnetic separation
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B
Magnetic separation-Winnowing
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C
Sieving-Magnetic separation - Filtration
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D
Handpicking - Sublimation- Sieving
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Solution

The correct option is B Magnetic separation-Winnowing
By magnetic separation- It is used to remove particle Z because Z is iron.
Winnowing helps to separate the particle have different weight
It will help to separate X,Y and Z.

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