Question

The different processes used to separate sand, sawdust, and salt from the mixture dissolved in water are respectively:

• A. sedimentation, filtration and evaporation
• B. filtration, evaporation and condensation
• C. decantation and evaporation
• D. hand picking and evaporation

Answer 1

The correct option is A sedimentation, filtration and evaporation

1. Sedimentation is used to remove sand from water as sand particles settle down easily.
2. Filtration is used to remove sawdust from water as the sawdust can be captured by the filter paper.
3. Evaporation can be used to separate salt from water as the water evaporates and salt is left behind.