Materials-metals and non-metals-Important Questions

1.   Explain displacement reaction with the help of an activity.

2.   Explain the reaction of non-metals with oxygen with the help of an acitivity.

3.   Write the uses of metals and non-metals.

4.   Write the difference between metals and non-metals on the basis of their physical properties.

5.   Name two most ductile metals.

6.   Sodium is stored in kerosene. Why?

7.   What are oxides? Write the nature of metallic and non-metallic oxides.

8.   Explain displacement reaction with the help of an example.

9.   Explain the reactions of metals and non-metals with (i) Acids (ii) Air (iii) Water.

10.   Write the uses of metals and non-metals in our daily life.