NCERT Question 9 - Chapter 5 Class 6 - Separation of Substances

True or false?

(a) A mixture of milk and water can be separated by filtration.

(b) A mixture of powdered salt and sugar can be separated by the process of winnowing  

(c) Separation of sugar from tea can be done with filtration.

(d) Grain and husk can be separated with the process of decantation. 

Answer:

1. A mixture of milk and water cannot be separated by filtration because milk dissolves in water so it will not be trapped in the filter paper. So, False 

2. Salt and sugar cannot be separated by winnowing because they are both the same in weight.So, False

3. It cannot be separated because sugar dissolves into tea and therefore cannot be trapped in the filter paper. So, False 

4. It can be separated by winnowing because decantation is a process to separate insoluble solids from liquids. So, False