State whether the following statement is true or false.
This method of separating a mixture of sand and water does not involve any chemical reaction, nor do they require energy input.
Important Questions on Separation of Substances
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?
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 |
| 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 |
The statement given below is incorrect. Write the correct statement.
The process by which "paneer" is removed from curdled milk is called decantation.
Which of the following solutions will leave a residue on the paper when they are filtered?
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)
