MCQ Class 9 Science Exploration Chapter 9 Atomic Foundation of Matter

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1. CO is named:

Question 1 of 20

2. PCl₃ is:

Question 2 of 20

3. SF₆ is:

Question 3 of 20

4. NaCl is:

Question 4 of 20

5. MgO is formed by:

Question 5 of 20

6. Valency is:

Question 6 of 20

7. In ionic compounds, charges must:

Question 7 of 20

8. CaCl₂ has:

Question 8 of 20

9. Mg(OH)₂ contains:

Question 9 of 20

10. Al₂(SO₄)₃ contains:

Question 10 of 20

11. Sugar solution does not conduct electricity because:

Question 11 of 20

12. Sodium chloride solution conducts electricity because:

Question 12 of 20

13. A cation is formed by:

Question 13 of 20

14. An anion is formed by:

Question 14 of 20

15. Sodium ion has:

Question 15 of 20

16. Chloride ion has:

Question 16 of 20

17. A molecule can exist:

Question 17 of 20

18. Dalton’s theory explains:

Question 18 of 20

19. In chemical reactions, atoms:

Question 19 of 20

20. Stability of atoms is achieved by:

Question 20 of 20


 

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