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Chemistry - Chemical Equilibrium

Practise 55 TS EAMCET previous year questions on Chemical Equilibrium, compiled from papers spanning 2001 to 2025. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty TS EAMCET tests.

Chemical Equilibrium has been asked in 21 of the 24 years of TS EAMCET papers analysed (2001–2024), with 55 questions in all. 36% of them were easy, 53% moderate and 11% tough. Most of its questions came from 2020, with 9 questions that year. In the last three years (2022–2024) it had 12 questions across 17 papers, about 0.7 per paper.

The chapter's 2 topics are not weighted equally: Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application (49 questions, 89%) and Le chatelier's principle (6 questions, 11%) have been asked the most. Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application has also led over the last five years, with 20 questions. Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application has produced the most tough questions (6).

  1. 1At value for the reaction, is . What is the value for at ?04 May, 2025 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  2. 2For the reaction , the correct relation between degree of dissociation of and equilibrium constant, is total pressure of mixture02 May, 2025 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  3. 3At 1000 K, the equilibrium constant for the reaction is 0.53. In a one litre vessel, at equilibrium the mixture contains 0.25 mole of mole o02 May, 2025 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  4. 4At the equilibrium constants for the following two reactions are given below What is the value of equilibrium constant ( K ) for the reactio11 May, 2024 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  5. 5At for the reaction is 16 . One mole each of reactants and products are taken in a 1 L flask and heated to , and equilibrium is established.09 May, 2024 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  6. 6At for the dissociation of is . The number of moles of that must be taken in 1.0 L flask at the same temperature to get 0.2 mol of chlorine 09 May, 2024 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  7. 7At when one of and one mol of are heated in a flask, 0.5 moles of is formed at the equilibrium. The value for the reaction is13 May, 2023 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  8. 8At value for the reaction is 50 . The value for the reaction at the same temperature is13 May, 2023 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  9. 9At and 10 atmosphere pressure the equilibrium constant for the reaction is 3.52 . At the same temperature and 7.04 atmosphere pressure, the 12 May, 2023 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  10. 10For the formation of ammonia from its constituent elements ( 1 mole of and 3 moles of ) in a closed vessel of volume , the value of is [unit20 Jul, 2022 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  11. 11Calculate the value of the equilibrium constant for the reaction of oxygen gas oxidising ammonia gas to nitric oxide and water vapour. The p20 Jul, 2022 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  12. 12In which of the following reactions at equilibria, the position of the equilibrium shifts towards the products, if the total pressure is inc19 Jul, 2022 (M)Le chatelier's principle
  13. 13The value at equilibrium of formation reaction from and is . What is the equilibrium partial pressure of if the equilibrium pressure of and 19 Jul, 2022 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  14. 14For a reaction A s B s + C g the set of all correct statements are a) K is independent of A . b) K is dependent on partial pressure of C at 18 Jul, 2022 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  15. 15For the formation of ammonia gas from its constituent elements, the K P / K C is18 Jul, 2022 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  16. 16For the reaction,06 Aug, 2021 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  17. 17For the formation of from and which one of the following graphs represents the yield of ammonia at equilibrium? (Assume , unless mentioned)06 Aug, 2021 (E)Le chatelier's principle
  18. 18For the formation of from its constituent elements, the favourable conditions for its formation are06 Aug, 2021 (E)Le chatelier's principle
  19. 19The equilibrium constant K p for the formation of ammonia from its constituent elements at 27 C is 1 . 2 10 - 4 and at 127 C is 0 . 60 10 - 05 Aug, 2021 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  20. 20For a reaction 2 A B + C , K c is 2 10 - 3 . At a given time, the reaction mixture has [ A ] = [ B ] = [ C ] = 3 10 - 4 M . Which of the fol05 Aug, 2021 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  21. 21The equilibrium constant for the reaction is P 4 s + 50 2 g P 4 0 10 s05 Aug, 2021 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  22. 22For the reaction A g B g + C g , A is 33 % dissociated at a total pressure P . The correct relation between P and K p is04 Aug, 2021 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  23. 23The value of the reactant quotient for the cell is Zn s / Zn 2 + 0 . 01 M Cu 2 + 1 . 25 M / Cu s04 Aug, 2021 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  24. 24For a given equilibrium reaction, addition of inert argon gas at constant volume can shift the equilibrium in14 Sep, 2020 (M)Le chatelier's principle
  25. 25For the given equilibrium reaction Choose the correct equation to calculate .14 Sep, 2020 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  26. 26of aqueous solution of diethyl amine is 10 . The value of equilibrium constant is14 Sep, 2020 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  27. 27For a given reaction, , the equilibrium constant is . If at any given time the composition of the reaction mixture is ; predict in which dir14 Sep, 2020 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  28. 28Aqueous solution of ferric nitrate when mixed with aqueous solution of potassium thiocyanate gives red colour solution. The intensity of red11 Sep, 2020 (E)Le chatelier's principle
  29. 29The vapour density of in is 40 . The degree of dissociation is10 Sep, 2020 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  30. 30What is the equilibrium constant for the given reaction? Where the equilibrium concentration of , and NO are found to be and respectively.10 Sep, 2020 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  31. 31For the given equilibrium reaction, 2 A g 2 B g + C g the equilibrium constant K c at 1000 K is 4 10 - 4 . Calculate K p for the reaction at09 Sep, 2020 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  32. 32If the equilibrium constant for the reaction, is 64 at , then the equilibrium constant for the reaction at the same temperature is09 Sep, 2020 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  33. 33In which of the following plots, an endothermic reaction is correctly represented?06 May, 2019 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  34. 34Consider the equilibrium, . Calculate the equilibrium constant of the reverse reaction when the equilibrium concentration of and are and , r04 May, 2019 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  35. 35For the reaction, the equilibrium pressure is . If, conversion is , the value of , in atm is03 May, 2019 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  36. 36A solution of 0 . 1 mole of CH 3 NH 2 K b = 5 10 - 4 and 0 . 08 mole of HCl is diluted to one litre, then the pOH of the solution is ( log 103 May, 2019 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  37. 37If the equilibrium constant for the above reaction at is 1.79 and the equilibrium concentration of and are and , respectively, then the conc07 May, 2018 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  38. 38Consider the following reaction in a closed vessel. If all the species; and are in in the beginning of the reaction and equilibrium is attai05 May, 2018 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  39. 39For a reaction 2 A ( g ) 2 B ( g ) + C ( g ) , K c = 3 . 75 10 - 6 at 1069 K . The approximate value of K p for this reaction at the same te04 May, 2018 (M)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  40. 40For the formation of from and at , the concentration of and at equilibrium are and , respectively. The equilibrium constant for the reverse 04 May, 2018 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  41. 41Estimate the approximate of . Degree of dissociation (ionisation) is04 May, 2018 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  42. 42Which one of the following is correct?2016Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  43. 43When one mole of and one mole of were heated in one litre flask at mole of was formed in the equilibrium, the equilibrium constant, is2015Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  44. 44In a reaction, of has reacted at equilibrium, when 1 mole of was heated with 1 mole of in a closed vessel. The value of is2014Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  45. 45If the equilibrium constant for the reaction is 49 , what is the equilibrium constant for2011Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  46. 46If the equilibrium constant for the reaction, what is the equilibrium constant of2010Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  47. 47The equilibrium constant for the given reaction is 100 . What is the equilibrium constant for the reaction given below?2009Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  48. 48In a flask, the degree of dissociation of at equilibrium is and the initial amount is 5 moles. The value of equilibrium constant in for the 2008Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  49. 49The equilibrium constant for the reaction is atm. The equilibrium constant of the reaction would be2007Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  50. 50Which of the following is not a characteristic property of chemical equilibrium ?2006Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application

Frequently Asked Questions

1.How many questions are available for Chemical Equilibrium?

This chapter includes 55 questions compiled from TS EAMCET papers spanning 2001 to 2025.

2.Are these questions only from TS EAMCET, or from other exams too?

These are TS EAMCET questions specifically for the Chemical Equilibrium chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Chemical Equilibrium an important chapter for TS EAMCET Chemistry?

Chemical Equilibrium has appeared in 22 of the 25 years of TS EAMCET papers covered here, with 55 questions across 48 papers - about one per paper it appears in.

4.What is the difficulty level of Chemical Equilibrium questions in TS EAMCET?

Of the 55 questions analysed for this chapter, 36% are easy, 53% moderate and 11% tough. 2020 had the most, with 9 questions.

5.Which topics in Chemical Equilibrium should I focus on?

These topics have carried the most weightage in Chemical Equilibrium:

  • Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application - 49 questions (89%)
  • Le chatelier's principle - 6 questions (11%)
  • Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application has produced the most tough questions (6).
6.Is Chemical Equilibrium's weightage in TS EAMCET going up or down?

Across all 48 papers analysed, Chemical Equilibrium has averaged about 1.1 questions per paper. In the last three years (2022–2024), that average has fallen, at about 0.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.