Explain the process of getting pure salt from impure salt with diagram.
Important Questions on Separation of Substances
Match the statements in the column A with those in column B.
| Column A | Column B |
| 1. The process of removing insoluble particles of suspension by passing it through filter paper. |
(a) Sieving |
| 2. The process of obtaining soluble salt from its solution. | (b) Churning |
| 3. The process of obtaining butter from curd. | (c) Loading |
| 4. The process of making particles of mud heavy with alum. | (d) Filtration |
| 5. The process of separation of chaff from wheat flour. | (e)Evaporation |
The statement given below is incorrect. Write the correct statement.
The process by which "paneer" is removed from curdled milk is called decantation.
Squeeze some drops of lime into a glass of milk. You will see a whitish solid forming after some time. Place a thin cloth over a bowl and pour the liquid on it. The white solid is left behind on the cloth and liquid collects in the bowl.
_____ is the name of the process represented by pouring the liquid through a cloth. (distillation/filtration/chromatography)
Give an example of each from our daily life:
Filtration in the kitchen: _____.
(Tea filtrate/ distillation/ Separation)
Squeeze some drops of lime into a glass of milk. You will see a whitish solid forming after some time. Place a thin cloth over a bowl and pour the liquid on it. The white solid is left behind on the cloth and liquid collects in the bowl. What is the correct name for the liquid that collects in the bowl?
| Column A | Column B |
| . Pure substance | a. filter paper |
| . Supersaturated solution | b. water and oil |
| . Filtration | c. carbonated water |
| . Seawater | d. definite properties |
| . Immiscible liquids | e. common salt and water |
