Crystallization

Q.

Distinguish between Filtration and Centrifugation.

Q.

Which of the following is an example of the solid-liquid mixture?

1. Chalk and petrol

2. Rice and water

3. Salt and water

4. All of these

Q.

What is crystallization?

1. The formation of solids from a gas

2. Solidification of a substance in a structured form

3. When crystals dissolve in a solution

4. When crystals melt into liquid

Q.

What state or phase of material are crystals?

1. Gas

2. Solid

3. Liquid

4. All of the above

Q.

Crystallisation is better than simple evaporation because:

1. soilds can decompose

2. may get charred when heated to dryness

3. the contaminate can still be present

4. all of these

Q.

Copper sulphate can be obtained from its solution by the process of _______.

1. sublimation
2. filtration
3. crystallisation
4. solidification

Q.

Copper sulphate can be obtained from its solution by the process of _______.

1. sublimation
2. filtration
3. crystallisation
4. solidification

Q.

Copper sulphate can be obtained from its solution by the process of _______.

1. sublimation
2. filtration
3. crystallisation
4. solidification

Q.

____________ is a process that separates a pure solid in the form of its crystals from a solution.

1. Condensation

2. Filtering

3. Solidification

4. Crystallisation

Q.

____________ is a process that separates a pure solid in the form of its crystals from a solution.

1. Filtering

2. Condensation

3. Solidification

4. Crystallisation