Page 2 - Home Assign 2.Practical Worksheet

2.

Look at the diagram and identify the method used for separating a mixture

(a) Chromatography (b) Distillation(c) Crystallization (d) Filtration
The correct sequence of steps for separating a mixture of sand, ammonium chloride
3. and sodium chloride is
(a) Sublimation, evaporation, adding water, fitration
(b) Sublimation, adding water, fitration,evaporation
(c) Evaporation,sublimation,adding water, fitration
(d) Evaporation,adding water, fitration,sublimation
4. The experimental set up shown in the figure, the missing item in the set up is

(a) Thermometer (b) Two holed cork (c) One holed cork (d) Cotton plug

5. To separate a mixture of common salt and ammonium chloride by sublimation,
following apparatus was given by the laboratory assistant to a student. Two 200 mL
beakers, iron stand, china dish, wire gauge, bunsen burner, a glass rod, cotton
wool.The part of apparatus missing is a:
(a) filterpaper (b) glassfunnel
(c) thermometer (d) petridish
6. Mixture of sand and salt can be separated by :
(a) dissolvingmixtureinwater,filtrationandthenbydistillation.
(b) dissolvingmixtureinwater,thenbyfiltration.
(c) dissolvingmixtureinwater,filtrationandthenbyevaporation.
(d) Distillation, adding water, evaporation

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