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MCQ General Science Chapter 13 Class 8 Maharashtra Board

MCQ For All Chapters – General Science Class 8

Chemical Change and Chemical Bond

1. What is the primary difference between a physical and a chemical change?

Question 1 of 20

2. Which of the following is a physical change?

Question 2 of 20

3. What observation indicates a chemical change when baking soda is added to lemon juice?

Question 3 of 20

4. What gas is released when citric acid reacts with sodium bicarbonate?

Question 4 of 20

5. In a chemical equation, where are the reactants written?

Question 5 of 20

6. What type of reaction occurs when citric acid reacts with sodium bicarbonate?

Question 6 of 20

7. Which of the following is a product of respiration according to the document?

Question 7 of 20

8. What happens to lime water when carbon dioxide is blown into it?

Question 8 of 20

9. What is the role of sunlight in photosynthesis?

Question 9 of 20

10. Which substance is a reactant in the combustion of fuels?

Question 10 of 20

11. What is one product formed when Shahabad tile is cleaned with hydrochloric acid?

Question 11 of 20

12. How is hard water softened using washing soda?

Question 12 of 20

13. What is a chemical bond?

Question 13 of 20

14. What type of bond is formed between sodium and chlorine in NaCl?

Question 14 of 20

15. How many electrons does sodium have in its valence shell before forming NaCl?

Question 15 of 20

16. What is the valency of chlorine in NaCl?

Question 16 of 20

17. How many ionic bonds does magnesium form in MgCl₂?

Question 17 of 20

18. What type of bond is formed in a hydrogen molecule (H₂)?

Question 18 of 20

19. How many electrons are shared in one covalent bond?

Question 19 of 20

20. What completes the octet of oxygen in an H₂O molecule?

Question 20 of 20


 

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Comments

  1. Shreya says:
    December 29, 2025 at 8:10 pm

    What is my score

    Reply

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