Separation of substances

A substance that dissolves in a solvent to form a solution is called

• solute

• solvent

• immiscible liquid

• sediment

The process of conversion of water vapor into its liquid form on cooling is

• evaporation

• freezing

• condensation

• sedimentation

Substances need to be separated

• to remove undesirable substances

• to get desirable substances

• to obtain two different useful components

• all of the above

The separation of grains from the husk is done by the

process of

• Handpicking

• Sieving

• winnowing

• threshing

The process of separation of tea leaves by strainer is called

• Filtration

• Sedimentation

• Evaporation

• condensation

The sieving is done based on the property of

• difference in weight

• difference in colour

• difference in shape

• difference in size

In threshing,

• Bran is removed from flour using a sieve.

• Muddy water is filtered through a piece of cloth.

• Tea is poured through a strainer

• Stalks are beaten to free the grain seeds

Common salt is obtained from seawater by the process of

• Filtration

• Evaporation

• Sedimentation

• Decantation

Identify the method of separation when the shape, size, and colour of the components are different.

• Sedimentation

• Sieving

• Handpicking

• Filtration

A solution that cannot dissolve any more solute is

called

• unsaturated

• saturated

• filtrate

• residue