A mixture of sand and water can not be separated by filtration method.

Filtration is a method in which an impure sample is filtered either by a strainer or a filter paper. Filter paper is used in cases where the solid impurities are of a small in size, as in the case of a mixture of sand and water. Solid sand impurities can be separated by pouring the mixture on to a filter paper. This filter is fixed on a funnel which is mounted on a container. Thus, the given statement is false.