Separation of Substances: Saturation, Filtration

This is an interactive quiz on the Separation of Substances.

It includes topics such as evaporation, condensation, filtration, saturation.

Start Quiz

Consider the following sentences and choose the incorrect one:

A mixture of tea leaves and milk can be separated by decantation. A mixture of wheat grains and rice flakes can be separated by winnowing. A mixture of iron filling and rice flour can be separated by sieving. Water can be separated from salt by evaporation.

Paheli asked for a glass of water from Boojho. He gave her a glass of ice-cold water. Paheli observed some water droplets on the outer surface of the glass and asked Boojho, how these droplets of water were formed? Which of the following should be Boojho’s answer?

Evaporation of water from the glass. Water that seeped out from the glass. Evaporation of atmospheric water vapour. Condensation of atmospheric water vapour.

In which of the following statement is are incorrect?

In winnowing process, the wheat grains being heavy fall down vertically to the ground and form a heap of wheat grains. By using muslin cloth, we can separate mud from water in some extent. By evaporation we can separate oil mixed in water. By sieving we can separate rice flour mixed with kidney beans.

If the saturated solution of a substance at a particular temperature is heated to a higher temperature then the solubility of a substance(s):

Increase Decrease Remains same Little decrease

Four mixtures are given below, which of these can be separated by the method of winnowing?

Kidney beans and chickpeas, pulses and rice Pulses and rice, Rice-flakes and corn Kidney beans and chickpeas, Rice-flakes and corn Rice-flakes and corn, Potato wafers and biscuits

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

Handpicking Winnowing Sieving Any of these

The process of conversion of water vapours into liquid is called

Condensation

Decantation

Sedimentation

Evaporation

Sand from water is separated by

Sieving

Evaporation

Filtration

Sedimentation and decantation