Separation of substances

Which of the following mixtures would you be able to separate using the method of filtration?

• Oil in water

• Cornflakes in milk

• Salt in water

• Sugar in milk

Which amongst the following methods would be most appropriate to separate grains from bundles of stalks?

• Threshing

• Hand-picking

• Winnowing

• Sieving

A small amount of solid copper sulphate is dissolved in a tumbler half-filled with water. Which method would you use to get back solid copper sulphate from the solution?

• Decantation

• Sedimentation

• Evaporation

• Condensation

A mixture of oil and water can be separated by filtration.

• True

• False

The process of settling of heavier particles is called_____.

• Evaporayion

• Filtration

• Condensation

• Sedimentation

Which out of the following is the most suitable method to separate the wheat grains from the flour?

• Sieving

• Threshing

• Winnowing

• Filtration

What is the technique that separates a liquid from an insoluble solid by carefully pouring off the liquid called?

• Filtration

• Decantation

• Evaporation

• Distillation

Butter is separated from milk by

• Sedimentation

• Filtration

• Churning

• decantation

A mixture of tea leaves and milk can be separated by decantation.

• True

• False

Salt is obtained from the seawater by using which of the following process?

• Centrifugation

• Condensation

• Sedimentation

• Evaporation