PDF chapter test TRY NOW
Answer the following questions:
1. What type of mixtures are separated by the technique of crystallisation?
The mixtures in which one component or impurity is in a particular solvent than the other. For example, impure samples of copper sulphate, potassium nitrate, potash alum etc., can be purified by this method.
2. Try segregating the things around you as pure substances or mixtures.
(a). distilled water, (b). curd, (c). diamond, (d). ice cream, (e). kerosene, (f). cooking oil, (g). steel, (h). graphite, (i). raw rubber, (j). vulcanised rubber, (k). solder wire.
(a). distilled water, (b). curd, (c). diamond, (d). ice cream, (e). kerosene, (f). cooking oil, (g). steel, (h). graphite, (i). raw rubber, (j). vulcanised rubber, (k). solder wire.
Pure substances:
Mixtures:
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