Equilibrium MCQ Questions for Class 11 Chemistry Chapter 7 with Answers

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We have completed the NCERT/CBSE chapter-wise Multiple Choice Questions for Class 11 Chemistry book Chapter 7 Equilibrium with Answers by expert subject teacher for latest syllabus and examination. You can Prepare effectively for the exam taking the help of the Class 11 Chemistry Objective Questions PDF free of cost from here. Students can take a free test of the Multiple Choice Questions of Equilibrium. Each Questions has four options followed by the right answer. Download the Chemistry Quiz Questions with Answers for Class 11 free Pdf and prepare to exam and help students understand the concept very well.

MCQ Questions for Class 11 Chemistry with Answers

Q1. Oxidation number of Iodine varies from

(i) -1 to +1
(ii) -1 to +7
(iii) +3 to +5
(iv) -1 to +5

(ii) -1 to +7

Q2. What is the pH of a 0.10 M solution of barium hydroxide, Ba (OH)2?

(i) 11.31
(ii) 11.7
(iii) 13.30
(iv) None of these

(iii) 13.30

Q3. Which of the following is not true about a reversible reaction?

(i) Number of moles of reactants and products is always equal
(ii) It can be attained only in a closed container
(iii) It cannot be influenced by a catalyst
(iv) The reaction does not proceed to completion

(i) Number of moles of reactants and products is always equal

Q4. A certain buffer solution contains equal concentration of X– and HX. The ka for HX is 10-8. The pH of the buffer is

(i) 3
(ii) 8
(iii) 11
(iv) 14

(ii) 8

Q5. For a reversible reaction, if the concentrations of the reactants are doubled, the equilibrium constant will be

(i) halved
(ii) doubled
(iii) the same
(iv) one fourth

(iii) the same

Q6. The pH of a 10-10 M NaOH solution is nearest to

(i) 10
(ii) 7
(iii) 4
(iv) -10

(iii) 4

Q7. On doubling P and V with constant temperature the equilibrium constant will

(i) remain constant
(ii) become one-fourth
(iii) become double
(iv) None of these

(i) remain constant

Q8. Among the following the weakest Bronsted base is

(i) F–
(ii) Cl–
(iii) Br–
(iv) I–

(iv) I–

Q9. What happens to the yield of this reaction when temperature is increased?
N2 + O2 ⇌ 2NO; 43 k cal

(i) increases
(ii) decreases
(iii) remains same
(iv) none of these

(i) increases

Q10. When equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed, the hydroxide ion concentration is

(i) 7.0
(ii) 1.04
(iii) 12.65
(iv) 2.0

(iii) 12.65

Q11. Suitable conditions for melting of ice

(i) high temperature and high pressure
(ii) high temperature and low pressure
(iii) low temperature and low pressure
(iv) low temperature and high pressure

(i) high temperature and high pressure

Q12. When two reactants A and B are mixed to give products C and D, the concentration quotient (Q) at initial stage of the reaction

(i) Is zero
(ii) Decreases with time
(iii) Is independent of time
(iv) Increases with time.

(iv) Increases with time.

Q13. Buffer solutions have constant acidity and alkalinity because

(i) They have large excess of H+ or OH– ions
(ii) They have fixed value of pH
(iii) These give unionised acid or base on reaction with added acid or alkali
(iv) Acids and alkalies in these solutions are shielded from attack by other ions

(iii) These give unionised acid or base on reaction with added acid or alkali

Q14. Aluminium chloride is

(i) Bronsted Lowry acid
(ii) Arrhenius acid
(iii) Lewis acid
(iv) Lewis base

(iii) Lewis acid

Q15. In a reversible chemical reaction at equilibrium, if the concentration of any one of the reactants is doubled, then the equilibrium constant will

(i) Also be Doubled
(ii) Be Halved
(iii) Remain the Same
(iv) Become One-Fourth

(iii) Remain the Same

Q16. A base according to Bronsted concept is a substance which can

(i) lose a pair of electrons
(ii) donate protons
(iii) gain a pair of electrons
(iv) accept protons.

(iv) accept protons.

Q17. When sodium carbonate solution is titrated against HCl solution, the indicator used is

(i) Phenolphthalein
(ii) Methyl orange
(iii) Methyl red
(iv) Starch.

(ii) Methyl orange

Q18. When a neutral atom undergoes oxidation, the atoms oxidation state

(i) Decreases as it gains electrons
(ii) Decreases as it loses electrons
(iii) Increases as it gains electrons
(iv) Increases as it loses electrons

(iv) Increases as it loses electrons

Q19. The pH of a 0.005 M aqueous solution of sulphuric acid is

(i) 0.005
(ii) 2
(iii) 1
(iv) 0.01

(ii) 2

Q20. Water is a

(i) Protophobic solvent
(ii) Protophilic solvent
(iii) Amphiprotic solvent
(iv) Aprotic solvent

(iii) Amphiprotic solvent

We Think the given NCERT MCQ Questions for class 11 Chemistry book Chapter 7 Equilibrium with Answers Pdf free download will assist you. If you’ve got any queries regarding CBSE Class 11 Chemistry of Equilibrium MCQs Multiple Choice Questions with Answers, drop a comment below and that we will come back to you soons.

MCQ Questions for Class 11 Chemistry Chapter wise with Answers

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