Chapter 5 – Separation of Substances

A mixture of iodine and sand can be separated by:

A mixture of tea leaves and iron filling can be separated by:

A mixture of mustard oil and kerosene oil can be separated by:

Insects are separated from wheat by:

Larger quantity of salt can be dissolved in water by:

……………….. cannot dissolve any amount of substances:

To separate husk from grains in a field by

the husk which is ………………., is carried away by the wind and forms a Separate heap at a short distance from the heap of grain,

The grains which are fall vertically down on the ground,

A method of separation used when the components of a mixture are of different sizes is known as:

water is cleared by the process of loading.

The method to separating seeds of paddy from its stalks is called:

Common salt is then obtained from this mixture of salts by:

Which types of filters are used to purify drinking water ?

Give an example of where filtration is used at home.

………………. is used in loading as it quickly dissolves in water.

Give examples of substances used in daily life.

Give an example of materials that require separation.

Some times, threshing is done with the help of ………………….. cart.

…………………. are also used to thresh large quantities of grain.

Many substances contain only one type of constituent particles are called:

A substance which consists two or more types of contituents which are present in any amount or any ratio is called:

The process by which the undesirable components forming the mixture are removed to get a desirable component is called:

A separation method which involves blowing of light particles by air is known as:

The process of setting down of heavier insoluble particles from a mixture is called:

The process of transferring clear liquid without disturbing sedimeption is known as:

The process in which insoluble small suspended particles in a solution are made heavier to increase the rate of sedimentation of particles is called:

The method of separation in which particles suspended in a liquid are rotated in a centrifuge machine and heavier particles settle down is called:

The process of separation insoluble solid from a liquid by passing the liquid through a filter paper is known as:

The process of separating any salt from its solution by removing water is called:

The process in which a solid changes directly to gas without changing into liquid is known as:

The process of separating a pure substance in the form of crystals from its hot saturated solution by cooling is called:

The process of heating a liquid to form vapour and then cooling the vapour to get back the liquid is called:

A solution is said to be saturated if it cannot dissolve more of substance in it by: