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Separation Techniques

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.

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Separation Techniques

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  1. Separation Techniques QUIZ Questions

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

  3. 2 Which liquid, water or alcohol, has a lower boiling point (and boils first)? Alcohol

  4. 3 Which technique separates substances based on how well they dissolve in a particular solvent? Chromatography

  5. 4 In felt-tip pen chromatography which colour of pen was actually a mixture of the MOST colours of ink? Black

  6. 5 In the diagram below which spot was most soluble (i.e. dissolved best) in the solvent? Spot A

  7. 6 In chromatography of biro pen ink which solvent was best to carry the ink up the paper? Meths

  8. 7 What do we call a substance that cannot dissolve in a solvent? Insoluble

  9. 8 Which technique can be used to separate an insoluble solid from a liquid? Filtration

  10. 9 Which technique can be used to separate a soluble solid from the liquid it is dissolved in? Evaporation

  11. 10 Put the following 6 steps for separating sand and salt into the correct order A Heat filtrate to evaporate off the solvent (water) B Pour salt water filtrate into an evaporating basin on a tripod over a Bunsen burner C Filter to remove the insoluble sand D Place the sand/salt mixture into a beaker and add water E Allow basin to cool & collect salt F Stir to allow the salt to dissolve in the water D F C B A E

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