Separation Of Substances

Filtration is a method to separate the components of a

• a) solution

• b) mixture of a liquid and an insoluble substance

• c) both (a) and (b)

• d) pure substance

Which method is used to separate pebbles and stones from sand?

• a) Handpicking

• b) Winnowing

• c) Sieving

• d) Any of these

The components of a solution (say sugar in water) can be separated by

• a) filtration

• b) evaporation

• c) sedimentation

• d) decantation

The property which forms the basis of sieving

• a) difference in weight

• b) difference in colour

• c) difference in shape

• d) difference in size

………………. is used to separate husk from wheat.

• a) Threshing

• b) Winnowing

• d) Handpicking

• d) Sieving

WHAT IS THIS PROCESS CALLED?

• a) Sedimentation

• b) Handpicking

• c) Thresing

• d) Decantation

Name the method by which we get salt from ocean water.

• a) Condensation

• b) Winnowing

• c) Evaparation

• d) Threshing

Which method is used to separate stones from grains?

• a) Threshing

• b) Winnowing

• c) Handpicking

• d) Evaparation