Which method is used to separate insoluble solids from liquids?

The most commonly used method to separate insoluble solids from liquids is filtration. This method works because the solid does not dissolve in the liquid and can be physically blocked.

In filtration, the mixture is passed through a filter such as filter paper, cloth, or a sieve. The liquid passes through as filtrate, while the solid particles remain on the filter as residue.

For example, separating sand from water or tea leaves from tea are common uses of filtration. In some cases, sedimentation and decantation can also be used before filtration to make the process easier.

In simple terms, filtration helps remove solid impurities that do not dissolve in a liquid.