Question

Which of the following mixtures can be easily separated by filtration?

• A. Milk and water
• B. Salt water
• C. Sand and water
• D. Sugar water

Answer 1

The correct option is C Sand and water

Filtration is a method for separating an insoluble solid from a liquid.
For example: When a mixture of sand and water is filtered, the sand stays in the filter paper (residue) the water passes through the filter paper. Rest of the solutions cannot be separated using a filter paper as milk, salt and sugar completely dissolves in water.