While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which among the following is the most suitable method to separate the grains from the flour?

Threshing

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Sieving

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Winnowing

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Filtration

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Solution

The correct option is B Sieving
To separate a solid-solid mixture, whose components differ in size, sieving is used. To carry out sieving, a sieve is used. The pore size of seive is such that it lets one component through while stops the other one.

Grains are larger in size than flour, so flour will pass through the sieve, leaving grains behind. So, grains can be separated from flour by sieving.

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Question 6

While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?

(a) Threshing

(b) Sieving

(d) Filtration

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