Separation of components of a mixture

Q.

What happens when the saturated solution is heated?

Q.

Name the method used for the separation of oil from water.

Q. On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used.​
Solvent extraction method​

Q.

2. Which method you will use to separate:

(c) Sugar from rice and water.

Q.

A mixture of chloroform and water taken in a separating funnel is mixed and left undisturbed for some time. The upper layer in the separating funnel will be of _______ and the lower layer will be that of ___________.

Q. Define:​ Filtration​

Q.

Name the method used for the separation of small pieces of metal in the engine oil of a car.

Q.

Suggest separation technique(s) one would need to employ to separate the mixture of Mercury and Water:

Q.

1. When the process of hand picking is used?

Q. Give one word answer for the following :​
The liquid which evaporates and then condenses during the process of distillation………....​

Q.

Explain the use of separating funnel in the separation of two immiscible liquids.

Q.

Question 9 (a)

True or false?
A mixture of milk and water can be separated by filtration.

Q. Give one word answer for the following :​
The solid particles which remain on the filter paper after the filtration………...​

Q.

What is the principle used for the separation of immiscible liquids?

Q.

For separating the components of which of the following mixtures can a separating funnel be used ?

1. Water + sodium chloride

2. Chalk + water

3. Alcohol + water

4. Oil + water

Q.

2. Which method you will use to separate:

(a) Iron from sand and salt.

Q. On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used.​
Filtration​

Q.

Raj's mother served him Horlicks with milk. But there were some particles of Horlicks left un-dissolved, and so he asked his mother to remove those particles. What method of separation should his mother use? Why? [2 MARKS]

Q.

In a mixture of sand and salt which component remains as residue on the filter paper?

Q.

In the mixture of sand and salt which component is soluble in water.

Q.

Two ________ liquids may be separated by using a separating funnel.

Q.

8. Which principle is used for separating a mixture of two immiscible liquids?

Q. A mixture M is made up of two components P and Q. P is visibly larger and of different colour than Q. Which amongst the following process can be used for the seperation of P and Q?

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

Q.

Grease spots from garments can be separated by a method of

1. Chromatography

2. Solvent extraction

3. Sublimation

4. Dissolution in a suitable solvent

Q.

Suggest separation technique(s) one would need to employ to separate the mixture of Kerosene oil, water, and salt.

Q.

Name the method used for the separation of the mixture of petrol and water.

Q. Different separation techniques can be used to remove unwanted substances from a mixture.

1. False
2. True

Q. Which of the following mixtures can be easily separated by filtration?

1. Sugar water
2. Salt water
3. Sand and water
4. Milk and water

Q.

Which of the following is the principle using separating funnel?

1. Separates lighter solids from heavier solids.

2. Separate soluble solid from solid-liquid mixtures.

3. The two immiscible liquids from separate layers.

4. Separates two miscible liquis which boil at different temperatures.

Q.

Name the principle by which the mixture of salt and sand is separated into its component.