Name: Separation Techniques
Uploaded: 2019-07-19
Duration: 6 min 9 s
Description: In our everyday life, we find situations where the components of a mixture need to be separated. Let’s explore a few of the separation processes!

Question

Many a times, one method of separation is not enough to obtain a pure substance. Substantiate the statement with the help of an example.

Accepted Answer

The separation technique is a method that involves the mass transfer and converts a mixture of substances into two or more substances. Often one method is not enough to obtain a pure substance. The separation of grains of wheat from crop utilizes various methods of separation. For example, the threshing method of separation is generally used by farmers in agriculture foremost, to separate an edible part from a non-edible part of the grain during the harvesting of crops. For example, the grain is separated from the stalks by beating it on the ground or a large stone. After threshing, the grains should be cleared of the husk and chaff before grinding into wheat flour. The chaff is separated from the grains by winnowing. In winnowing, the farmer gently drops the mixture to the ground from a height. The heavier grains are collected at a place, while the lighter chaff blows away.

Many a times, one method of separation is not enough to obtain a pure substance. Substantiate the statement with the help of an example.

Important Questions on Separation of Substances

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