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MCQ Science and Technology Chapter 13 Class 9 Maharashtra Board

Carbon : An important element

1. Which hydrocarbon is an example of an unsaturated hydrocarbon?

Question 1 of 20

2. What is the molecular mass of carbon dioxide?

Question 2 of 20

3. What is the melting point of carbon dioxide?

Question 3 of 20

4. What happens to limewater when carbon dioxide is passed through it?

Question 4 of 20

5. What is a use of carbon dioxide in fire extinguishers?

Question 5 of 20

6. What is the percentage of carbon dioxide in exhaled air?

Question 6 of 20

7. What is formed when carbon dioxide reacts with sodium hydroxide?

Question 7 of 20

8. What is the boiling point of methane?

Question 8 of 20

9. Why is methane called marsh gas?

Question 9 of 20

10. Question 50: What is the main component of natural gas?

Question 10 of 20

11. Question 51: What happens when methane burns in oxygen?

Question 11 of 20

12. What is produced during the chlorination of methane?

Question 12 of 20

13. What is a use of methane in industries?

Question 13 of 20

14. What is the percentage of methane in biogas?

Question 14 of 20

15. What is the first stage in biogas production?

Question 15 of 20

16. What is a side product of biogas production?

Question 16 of 20

17. What type of process is biogas production?

Question 17 of 20

18. What is used to produce methane gas in a biogas plant?

Question 18 of 20

19. What is the chemical reaction when sodium bicarbonate reacts with sulfuric acid in a fire extinguisher?

Question 19 of 20

20. What is a use of solid carbon dioxide?

Question 20 of 20


 

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