MCQ Quiz on Class 11 Chemistry Chapter 7 Equilibrium with Answers

We have compiled the MCQ Questions for Class 11 Chemistry Chapter 7 Equilibrium with Answers Pdf free download covering the entire syllabus for JEE/NEET and Boards. Practice MCQ Questions for Class 11 Chemistry with Answers on a daily basis and score well in exams. Refer to the Equilibrium Class 11 MCQs Quiz Questions with Answers here along with a detailed explanation.

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Equilibrium Class 11 MCQs Questions with Answers

MCQ Questions for Class 11 Chemistry Chapter 7 Equilibrium with Answers

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1. Which of the following mixtures in an aqueous solution of equimolar concentration acts as a buffer solution?

 
 
 
 

2. A base according to Bronsted concept is a substance which can

 
 
 
 

3. Solubility of M2S salt is 3.5 × 10-6 then find out solubility product.

 
 
 
 

4. In a reversible chemical reaction at equilibrium, if the concentration of any one of the reactants is doubled, then the equilibrium constant will

 
 
 
 

5. On increasing the concentration of reactants in a reversible reaction, then equilibrium constant will

 
 
 
 

6. When a neutral atom undergoes oxidation, the atoms oxidation state

 
 
 
 

7. Find the conjugate acid of NH2

 
 
 
 

8. Aluminium chloride is

 
 
 
 

9. Find the pH of a solution when 0.01 M HCl and 0.1 M NaOH are mixed in equal volumes

 
 
 
 

10. A physician wishes to prepare a buffer solution at pH = 3.85 that efficiently resists changes in pH yet contains only small concentration of the buffering agents. Which of the following weak acids together with its sodium salt would be best to use?

 
 
 
 

11. Among the following the weakest Bronsted base is

 
 
 
 

12. A  weak acid HX has the dissociation constant 1 × 10-5 M. It forms a salt NaX on reaction with alkali. The degree of hydrolysis of 0.1 M solution of NaX is

 
 
 
 

13. When equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed, the hydroxide ion concentration is

 
 
 
 

14. In 0.10 M aqueous solution of pyridine (C5H5N), find the percentage of pyridine that forms pyridinium ion (C5H5N+H) (Kb for C5H5N = 1.7 x 10-9 )

 
 
 
 

15. Which of the following aqueous solutions will have highest pH?

 
 
 
 

16. A certain buffer solution contains equal concentration of X and HX. The ka for HX is 10-8. The pH of the buffer is

 
 
 
 

17. Highest pH will be recorded for which of the following solutions if they are equimolar

 
 
 
 

18. What is the pH of a 0.10 M solution of barium hydroxide, Ba (OH)2?

 
 
 
 

19. Which of the following aqueous solution will be the best conductor of electricity?

 
 
 
 

20. When sodium carbonate solution is titrated against HCl solution, the indicator used is

 
 
 
 

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