Separation Techniques - GCSE Chemistry Quiz

What is the main principle behind separation techniques in chemistry?

• D) Color changes

• C) Magnetic properties

• A) Chemical reactions

• B) Different solubilities

Which technique is used to separate a liquid from a soluble solid in a solution?

• Simple Distillation

• Filtration

• Chromatography

• Crystallisation

In simple distillation, where should the water enter the condenser?

• At the top near the column

• At the top near the flask

• At the bottom near the collecting beaker

• At the side of the condenser

What is the boiling point of ethanol?

• 85 ºC

• 90 ºC

• 100 ºC

• 78 ºC

Which technique is used to separate an undissolved solid from a liquid?

• Crystallisation

• Filtration

• Chromatography

• Fractional Distillation

What is the purpose of using a clean, dry, cold glass rod in crystallisation?

• To stir the solution

• To test if the solution is saturated

• To measure the temperature

• To add more solvent

What is the name given to the visual output of a chromatography run?

• Chromatology

• Chromatolysis

• Chromatogram

• Chromatograph

Which separation technique is used to separate substances with different solubilities in a given solvent?

• Paper Chromatography

• Simple Distillation

• Fractional Distillation

• Filtration

What happens to the solvent during the crystallisation process?

• It dissolves

• It freezes

• It condenses

• It evaporates