Need for Separation

Q.

The insoluble solid left Behind on the filter paper during filtration is called

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Q. Give one example for each of the following types of mixtures.
(a) solid-solid homogeneous mixture
(b) solid-liquid heterogeneous mixture
(c) liquid-gas homogeneous mixture

Q.

Why constituents of mixture are separated?

Q. Match the given substances with their specific category.

1. Iron
2. Salt water
3. Oil and water

Q. Identify the missing separation techniques or processes in the flowchart given below.​

1. 1: Evaporation​
   
   2: Sieving​
   
   3: Filtration​
   
   4: Condensation​
2. 1: Evaporation​
   
   2: Filtration​
   
   3: Sieving​
   
   4: Condensation​
3. 1: Filtration​
   
   2: Sieving​
   
   3: Evaporation​
   
   4: Condensation​

Q.

What is filtration.

Q.

Pizza is a ____ mixture of dough, sauce, cheese, and other toppings.

1. homogeneous mixture

2. heterogeneous mixture

3. homogeneous solution

4. both a and c

Q. Which of the following mixtures is correctly matched with their undesired components?

I )Muddy water: Water

II )Stalks and grains: Stalks

III) Rice and stones: Stones

1. I and III

2. I, II, and III
   
3. I and II
   
4. II and III
   

Q.

State two needs for separation of mixtures.