MCQ Class 11 Chemistry Chapter 6 Equilibrium

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MCQ’s For All Chapters – Chemistry Class 11th

1. What is heterogeneous equilibrium?

Question 1 of 20

2. In the equilibrium CaCO₃(s) ⇌ CaO(s) + CO₂(g), which species is included in the simplified equilibrium constant expression?

Question 2 of 20

3. A very large value of Kc generally indicates that:

Question 3 of 20

4. If Kc is less than 10⁻³, which species generally predominate?

Question 4 of 20

5. If Qc is equal to Kc, the reaction mixture is:

Question 5 of 20

6. If Qc is less than Kc, the reaction proceeds in which direction to reach equilibrium?

Question 6 of 20

7. Which principle predicts how an equilibrium system responds to a change in conditions?

Question 7 of 20

8. What happens when a reactant is added to a system at equilibrium?

Question 8 of 20

9. For H₂(g) + I₂(g) ⇌ 2HI(g), adding H₂ shifts the equilibrium:

Question 9 of 20

10. A catalyst affects equilibrium by:

Question 10 of 20

11. According to the Arrhenius concept, an acid produces which ion in water?

Question 11 of 20

12. According to the Brönsted-Lowry concept, an acid is a:

Question 12 of 20

13. According to the Lewis concept, a Lewis acid is a species that:

Question 13 of 20

14. Which of the following acts as a Lewis acid?

Question 14 of 20

15. What is the conjugate base of H₂SO₄?

Question 15 of 20

16. What is the conjugate acid of NH₃?

Question 16 of 20

17. Which statement about strong electrolytes is correct?

Question 17 of 20

18. What does pH represent?

Question 18 of 20

19. What is the ionic product of water represented by?

Question 19 of 20

20. Which condition is characteristic of a saturated solution at equilibrium?

Question 20 of 20


 

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