what is hand picking ?
when is this method used
Answers
Answer:
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Explanation:
The method of hand picking is used to separate those mixtures where one of the component is in small quantity. The method of hand picking is used to separate undesirable substances such as small pieces of stones from wheat, rice and pulses.
EXPLANATION FOR THE QUESTION
What is handpicking?
→Some substances are easily separable just by taking out the impurities with hand.
→This method of separation is known as hand-picking.
→The method in which substances in a mixture can be separated by just picking them out with the help of hand from the mixture is known as hand-picking method.
When is this method used?
→To separate sand and salt, we dissolve the mixture in water and then filter it.
→In this way salt get dissolved in water while sand we get as residue.
→Thus, we can say handpicking is used for separating slightly larger sized impurities such as pieces of dirt, stones, husk from wheat, rice, pulses etc.