Separation Techniques QUIZ Questions 1 Which technique can

Separation Techniques QUIZ Questions

1 Which technique can be used to separate 2 liquids with different boiling points? Distillation

2 Which liquid, water or alcohol, has a lower boiling point (and boils first)? Alcohol

3 Which technique separates substances based on how well they dissolve in a particular solvent? Chromatography

4 In felt-tip pen chromatography which colour of pen was actually a mixture of the MOST colours of ink? Black

5 In the diagram below which spot was most soluble (i. e. dissolved best) in the solvent? Spot A

6 In chromatography of biro pen ink which solvent was best to carry the ink up the paper? Meths

7 What do we call a substance that cannot dissolve in a solvent? Insoluble

8 Which technique can be used to separate an insoluble solid from a liquid? Filtration

9 Which technique can be used to separate a soluble solid from the liquid it is dissolved in? Evaporation

10 A B C D E F Put the following 6 steps for separating sand salt into the correct order Heat filtrate to evaporate off the solvent (water) Pour salt water filtrate into an evaporating basin on a tripod over a Bunsen burner Filter to remove the insoluble sand Place the sand/salt mixture into a beaker and add water Allow basin to cool & collect salt Stir to allow the salt to dissolve in the water D F C B A E