Study the table given below. Mixture Wanted ComponentUnwanted ComponentWheat FlourFlourXY Grain seedsStalksBased on the above information, identify X and Y.
A
X = Husk
Y = Paddy
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B
X = Wheat
Y = Husk
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C
X = Wheat
Y = Sawdust
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D
X = Husk
Y = Sand
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Solution
The correct option is A X = Husk
Y = Paddy In wheat flour, flour is the wanted component while husk X is the unwanted component. The method used will be sieving which is a method of separation of particles from a mixture based on the difference in the size of particles.
When paddy Y stalks are beaten on a stone, the grain seeds separate from their stalks. The method used will be threshing which is a process of separation of grain from the stalk on which it develops and from the chaff or unit that covers it.