Grade 12 Chemistry: Separation Techniques

Grade 12 Chemistry: Separation Techniques

Read each question carefully and answer to the best of your knowledge. Show all your work for calculations.

1. Which separation technique is best suited for separating a soluble solid from a liquid?

2. The image below shows a common laboratory setup. What separation technique does it represent?

a

Filtration

b

Crystallization

c

Distillation

d

Evaporation

3. In chromatography, the stationary phase is typically a solid or a liquid supported on a solid, while the mobile phase is a   or liquid that flows through the stationary phase.

4. Decantation is a separation technique used to separate immiscible liquids or a liquid from a   solid.

5. Simple distillation is effective for separating liquids with very similar boiling points.

6. Filtration can be used to separate a mixture of sand and salt dissolved in water.

7. Explain the principle of fractional distillation and provide an example of its application.

8. Describe how paper chromatography separates components of a mixture.

Match each separation technique with its primary basis of separation.