Sedimentation and Decantation

Q. Insoluble solid particles settle at the bottom in a solid-liquid mixture. These are collectively known as .

1. filtrate
2. sediment
3. distillate

Q. A mixture of sand and water can be separated by sedimentation.

1. True
2. False

Q. tank is used in purification of water, to remove heavy solid impurities by allowing them to settle down at the bottom.

1. Sedimentation
2. Loading
3. Filtration

Q. The components of which among the following mixtures can be separated by filtration?

1. Cornflakes in milk
2. Sugar in water
3. Ink in water
4. Saltwater

Q.

The technique which is used to separate particles of a solid suspended in a liquid quickly is called :

(a) decantation (b) centrifugation (c) sedimentation (d) filtration

Q.

What do we mean by decantation process?

1. Dissolution
2. Decantation
3. Filtration
4. Sedimentation

Q.

_______ is the process of separation of lighter liquid from the denser immiscible liquid.

1. Evaporation

2. Sedimentation

3. Decantation

4. Filtration

Q.

The impurity that remains during the settlement of insoluble substances is called :

1. Distillate water

2. Sediment

3. Filtrate

4. Suspension

Q.

In one of the stages of wastewater treatment, the solid impurities are allowed to settle down at the bottom. This particular stage in the entire purification is called ___

1. Sedimentation

2. Chlorination

3. Sublimation

4. Evaporation

Q.

Oil can be separated from water using

1. Filtration

2. Decantation

3. Both sedimentation and filtration

4. Sedimentation