Question

explain why in filtration it is necessary to wash the Residue with a little solvent

Answer 1

Filtration is an important method to separate impurities.

As a matter of fact, the filter paper is studded with pores that play an important role in trapping the residues.

Residue is washed with solvent so that it can be removed easily in an easy and hassle free manner for the users.

Answer 2

In filtration, it is necessary to wash the Residue with a little solvent in order to remove the trapped impurities left as residue in the filter paper in an easy and hassle-free manner.

Explanation:

• Filtration is a process in which impurities are separated from a liquid or solvent.
• Filter paper is porous.
• Thus, while filtering the solvent, it is probable that the residue get stuck in the pores of the filter paper.

To know more;

Name the three filtration barriers that solutes must come across as they move from plasma to the lumen of Bowman capsule

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