Decantation and Filter paper

Q.

Give two examples for which the sedimentation and decantation processes are used.

Q.

Tthe solid particles that settle at the bottom of the beaker in a heterogeneous mixture of solid-liquid is known as

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Q.

Differentiate between sedimentation and decantation.

Q.

Define sedimentation and decantation. Mention also the kind of mixture in which it is used for separation.

Q. Which of the following substance is insoluble in water?

1. Salt
2. Sugar
3. Sand
4. Glucose

Q.

What do we mean by decantation process?

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

Q. Which of the following substance is insoluble in water?

1. Salt
2. Sand
3. Sugar
4. Glucose

Q. Which of the following substance is insoluble in water?

1. Glucose
2. Sand
3. Salt
4. Sugar

Q. Which of the following substance is insoluble in water?

1. Sugar
2. Salt
3. Glucose
4. Sand

Q. X is a separation technique based on the difference in weights of the solids in a solid - solid mixture. What is X?

1. Sieving
2. Handpicking
3. Winnowing
4. Threshing

Q.

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

1. Distillate water

2. Sediment

3. Filtrate

4. Suspension

Q.

Oil can be separated from water by:

1. threshing

2. filtration

3. decantation

4. sedimentation

Q.

The process of separation of mixtures, by removing a layer of liquid, generally, one from which a precipitate has settled is known as:-

1. Evaporation

2. Decantation

3. Centrifugation

4. Distillation

Q.

Oil and water can be separated from a mixture using _____.

1. threshing

2. winnowing

3. sedimentation & decantation

4. crystallisation