Question

when is handpicking not preferred as a method of separation?​

Answer 1

Answer:

it is not preferred when the impurities are very fine or when they cannot be distinguished by the naked eyes

Answer 2

It is not preferable while sorting few items such as tea leaves.

• It is the method where, items can be readily separated simply by taking out the contaminants manually, Ie. by hand.
• However, some of them are impossible to separate by hand, necessitating the use of other separation procedures for such combinations.
• For example, we can easily remove stones from rice or pulse by hand. However, when it comes to tea and tea leaves, hand-picking is insufficient for separation, and a filter is necessary.
• As a result, depending on the elements of the mixture and the ultimate product desired, multiple methods for separating distinct mixes exist.