Page 3 - Home Assignment

1. What will happen when sodium reacts with oxygen? 1

2. Write down the chemical equation for magnesium reacting with oxygen. 1

3. Balance the above equation given in Q2. 1

4. How will you prove oxide of sodium is basic in nature? 1

5. What do you mean by amphoteric oxide? 1

6. Give examples of amphoteric oxide. 1

7. What will happen when sulphur reacts with oxygen? 1

8. Write down the chemical reaction for coal burning in air. 1

9. How will you show that oxide of carbon is acidic in nature? 1

10. What will happen when sulphur oxide is dissolved in water? 1

11. What will happen when magnesium metal reacts with cold water? 1

12. What will you observe when potassium reacts with cold water? 1

13. What is the condition needed for iron to react with water? 1

14. What is rusting? 1

15. What will you happen when sodium reacts with dilute sulphuric acid? 1

16. Write down the chemical reaction for the above equation. 1

17. What will you observe when sulphur is dipped in a beaker containing dilute 1
sulphuric acid?
18. What do you understand by reactivity series? 1

19. Define displacement reaction. 1

20. What will happen when an iron nail is dipped in blue colour solution of 1
copper sulphate?

Concept – Uses of metals and non-metals

1. Write down two uses of aluminum. 1

2. Write down two uses of nitrogen. 1

3. Write down two uses of silver. 1

4. Write down two uses of calcium. 1

5. Which element is used to make firecrackers? 1

Page3