Edexcel CC2: Separation techniques

2.5: Which is a pure substance?

• Steam
• Sea Water
• Soil
• Lemonade

2.7b: What method would you use to separate a mixture of liquids?

• Fractional Distillation
• Chromatography
• Distillation
• Filtering

2.5: The image is an example of...

• One compound
• Mixture
• Element
• single atom

2.7a: Salt dissolved in water.  
What method would you use to separate this mixture?

• sorting by hand
• distillation
• chromatography

2.5: Can a mixture be separated? 

• No
• Yes

2.7a: In the distillation apparatus shown, what are the parts labelled A and B?

• A = funnel, B = thermometer
• A = thermometer, B = funnel
• A = condenser, B = flask
• A = condenser, B = thermometer

2.7e: Dyes in water soluble markers may be separated by means of

• Distillation
• Decanting
• Chromatography
• Centrifuge

2.7c: The diagram shows the apparatus for separating soil and water. What are the labelled parts?

• A = distillate, B = filtrate
• A = filtrate, B = residue
• A = residue, B = filtrate
• A = residue, B = distillate

2.7d: Which one of the following is the name for separation technique in the picture below

• distillation
• dissolving
• crystallisation
• decanting

2.7d: Which one of the following is a disadvantage of evaporation?

• It always requires heat
• It cannot be used for insoluble solids
• All of the solute is recovered
• The solvent (liquid part) is not recovered