1) The best method of separating ethanol and water is a) Sublimation b) Centrifugation c) separating funnel d) Fractional distillation 2) The mixture of iodine crystals and sulphur can best be separated by... a) Centrifugation b) magnetism c) Sublimation d) chromatography 3) The pure liquid obtained by using simple distillation is called... a) fraction b) Distillate c) Fraction d) sublimate 4) A filtrate is not pure because... a) It contains some dissolved solutes b) To condense back the vapour that has not reached the boiling point c) it contains water d) it was not properly separated 5) Between a distillate and a fraction, ........is pure than...... a) Fraction, distillate b) Distillate, fraction c) Chromatogram, fraction d) Fraction, distillation 6) Blood can be separated into individual components by.... a) test tube b) Fractional distillation c) Centrifugation d) Sublimation 7) What is the purpose of glass beads in the fractionating column... a) To condense back the vapour that has not reached the boiling point b) to separate water c) to condense vapour d) to allow vapour to pass through fast 8) During chromatography, why is the base line drawn using a pencil? a) because its more visible than pen b) To avoid ink dissolving and interfering with results c) for easy rubbing d) because it gives the best results 9) What do we call the results of chromatography technique? a) chromatography b) Chromatogram c) Sublimate d) Distillate 10) Name the apparatus a) Centrifugation b) Separating funnel c) Chromatogram d) thistle funnel

Experimental technique: Demonstrate different methods of separating mixtures

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