Filteration, Sedimentation, Decantation

Q.

Sand settles down in the water. (True or False)

1. True
2. False

Q.

Give one word for the following: The process of pouring out the liquid without disturbing the sediment is called:

Q.

Suggest separation technique(s) one would need to employ to separate the given mixture - Mercury and water

Q.

28 Which method of separating tea leaves from prepared tea is better, decantation or filtration?

Q.

In a coffee machine, the ground coffee beans are separated from the coffee solution by using a/an ______.

1. Sand paper
2. Evaporator
3. Condenser
4. A filter

Q. Statement 1: The pore size of a filter medium is bigger than the size of the solute particles in a mixture.

Statement 2: The solid particles which are very small in size can be separated from a liquid by the method of filtration.

1. Statement 1 and 2 both are correct.
2. Statement 1 and 2 both are incorrect.
3. Statement 1 is correct and statement 2 is incorrect.
4. Statement 2 is correct, but statement 1 is incorrect.

Q.

Loading is used to separate cream from milk.

1. True
2. False

Q. Filtration cannot be used as a separation technique for _____.

1. blood
2. brewing coffee
3. ink
4. milk

Q.

Define the following term :

Decantation

Q.

17 (g). State whether the following are true or false:

The process of loading results in better sedimentation

1. True
2. False

Q.

Give one word or a phrase for each of the following.

The process of transferring the supernatant liquid without disturbing the sediments.

Q.

4. State whether the statements given below are True or False.

(g) Sand settles down in the water.

1. True
2. False

Q.

Define the following terms:

(d) Decantation

Q.

State whether the following statements are true or false.

A mixture of tea leaves and milk can be separated by decantation.

1. True
2. False

Q.

75 A mixture of oil and water can be separated by filtration.

1. True
2. False

Q. can be separated by the process of sedimentation.

1. Muddy water
2. Sugar solution
3. Salt solution
4. Lemon juice

Q. _______ is a method used to separate insoluble solids from a solid-liquid mixture.

1. Threshing
2. Filtration
3. Chromatography
4. Winnowing

Q. Identify the processes used to separate different mixtures.

1. Filtration
2. Decantation
3. Sieving