Jump to a section

Chemistry - Redox Reactions

Practise 53 TS EAMCET previous year questions on Redox Reactions, 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.

Redox Reactions has been asked in 16 of the 24 years of TS EAMCET papers analysed (2001–2024), with 53 questions in all. 26% of them were easy, 62% moderate and 11% tough. Most of its questions came from 2020, with 8 questions that year. In the last three years (2022–2024) it had 15 questions across 17 papers, about 0.9 per paper.

The chapter's 6 topics are not weighted equally: Oxidation number (18 questions, 34%), Equivalence concept (10 questions, 19%), and Types of redox reactions (9 questions, 17%) have been asked the most. Oxidation number has also led over the last five years, with 11 questions. Types of redox reactions has produced the most tough questions (2).

  1. 1Consider the following redox reaction in basic medium. The incorrect option about it is04 May, 2025 (M)Balancing of redox reactions
  2. 2100 mL of aqueous solution is added to 1 L of 0.1 M KI solution. The number of moles of and formed are respectively04 May, 2025 (E)Oxidation number
  3. 3In which of the following, oxidation state of nitrogen is lowest?03 May, 2025 (E)Oxidation number
  4. 4The number of moles of oxalate ions oxidized by one mole of permanganate ions in acidic medium is03 May, 2025 (E)Oxidation number
  5. 5Oxidation state of hydrogen in compound X is -1 and in compound Y is +1. X and Y are respectively02 May, 2025 (M)Oxidation number
  6. 6In acidic medium one mole each of and is reduced by and moles of ferrous ions. The sum of and is02 May, 2025 (M)Oxidation number
  7. 7If the number of moles of ions oxidized by one mole of acidified is , the number of moles of ions oxidised by one mole of acidified is02 May, 2025 (E)Oxidation number
  8. 8Consider the following reactions Identify the correct statement about and10 May, 2024 (M)Oxidation number
  9. 9Observe the following reaction In this reaction10 May, 2024 (E)Oxidation and Reduction Reactions
  10. 10mixture of (conc. conc. ) What is the oxidation state of Pt in complex ion?09 May, 2024 (E)Oxidation number
  11. 11In which of the following, ions are correctly arranged in the increasing order of oxidizing power?09 May, 2024 (E)Oxidation and Reduction Reactions
  12. 12Identify the incorrect statement about the oxidation states of group 14 elements14 May, 2023 (M)Oxidation number
  13. 13The oxidation states of three carbon atoms in carbon suboxide respectively are14 May, 2023 (E)Oxidation number
  14. 14Which of the following is the strongest reducing agent?13 May, 2023 (M)Oxidation and Reduction Reactions
  15. 15The equivalent weight of which of the following is maximum? (Given: atomic weights12 May, 2023 (M)Equivalence concept
  16. 16Which of the following is only a redox reaction but not a disproportionation reaction?12 May, 2023 (E)Types of redox reactions
  17. 17How many of the following are diprotic acids? Citric acid, Chromic acid, Oxalic acid, Pyrosulfuric acid, Sulfurous acid20 Jul, 2022 (M)Equivalence concept
  18. 18Which of the following are disproportionation reactions? (A) (B) (C) (D)20 Jul, 2022 (E)Types of redox reactions
  19. 19Identify the values of A, B, C, D and E for the following unbalanced reaction19 Jul, 2022 (M)Balancing of redox reactions
  20. 20The number of moles of ferrous oxalate oxidised by one mole of in acidic medium is19 Jul, 2022 (E)Redox titration
  21. 21Identify the pair of reactions undergoing disproportionation from the following.18 Jul, 2022 (M)Types of redox reactions
  22. 22The main products P and Q of the following unbalanced disproportionation reaction are Se 2 Cl 2 P + Q18 Jul, 2022 (E)Types of redox reactions
  23. 23Which of the following is not a disproportionation reaction?06 Aug, 2021 (M)Types of redox reactions
  24. 24In , the different oxidation states of is/are06 Aug, 2021 (E)Oxidation number
  25. 25From the given reactions identify the disproportionation reaction i) Cl 2 ( g ) + 2 KI ( aq ) 2 KCl ( aq ) + I 2 ( s ) ii) Cl 2 ( g ) + 2 OH05 Aug, 2021 (M)Types of redox reactions
  26. 26KMnO 4 oxidises oxalic acid in acidic medium. The number of CO 2 molecules produced per mole of KMnO 4 is05 Aug, 2021 (M)Redox titration
  27. 27In the balanced equation of the following reaction, the ratio of a / b is aCaCO 3 + bH 3 PO 4 pCa 3 PO 4 2 + qCO 2 + rH 2 O04 Aug, 2021 (M)Balancing of redox reactions
  28. 28In the following reaction mixtures, I. II. Zn copper respectively undergoes14 Sep, 2020 (M)Oxidation and Reduction Reactions
  29. 29What is the oxidation state of , when the of the aqueous solution of potassium dichromate changes from acidic to basic?11 Sep, 2020 (M)Oxidation number
  30. 30How much volume of aqueous solution of should be taken, which will contain 0.2 moles of ?11 Sep, 2020 (E)Equivalence concept
  31. 31The weight of potassium dichromate (molecular weight ) required to prepare of solution is11 Sep, 2020 (E)Redox titration
  32. 32The number of dissociable protons in "orthophosphoric acid" is11 Sep, 2020 (E)Equivalence concept
  33. 33The highest oxidation state observed in first row transition metals is10 Sep, 2020 (E)Oxidation number
  34. 34What is the equivalent weight of in acidic medium? (Molecular weight of )10 Sep, 2020 (E)Equivalence concept
  35. 35of solution neutralises of solution. The amount of water needed to convert of such solution to is10 Sep, 2020 (E)Equivalence concept
  36. 36Match the following: The correct answer is06 May, 2019 (M)Types of redox reactions
  37. 37How many protons will be consumed when dichromate ion oxidises ions in aqueous acidic medium?06 May, 2019 (M)Redox titration
  38. 38One third litre of is required to completely oxidise of ferrous ammonium sulphate in acid medium. What Is ?04 May, 2019 (M)Equivalence concept
  39. 39The coefficient and in the following balanced equations respectively are :04 May, 2019 (E)Balancing of redox reactions
  40. 40Identify the oxidation states of , when ion undergoes disproportionation reaction under acidic medíum.03 May, 2019 (M)Oxidation number
  41. 41Which one of following is a disproportionation reaction?05 May, 2018 (M)Types of redox reactions
  42. 42Oxidation states of in are05 May, 2018 (E)Oxidation number
  43. 43In the titration of I 2 aq by S 2 O 3 2 - aq using the starch indicator, the end point is indicated by:04 May, 2018 (M)Redox titration
  44. 44Balance the following equation by choosing the correct option.2017Balancing of redox reactions
  45. 45The following reaction occurs in acidic medium What is the equivalent weight of ? (Molecular weight of )2016Equivalence concept
  46. 46reacts with , in basic medium to form and . When of solution is mixed with of in basic medium, what is the number of moles of formed?2014Oxidation and Reduction Reactions
  47. 47Which one of the following is an example of disproportionation reaction?2013Types of redox reactions
  48. 48One mole of loses 10 moles of electrons to form a new compound . Assuming that all the nitrogens appear in the new compound, what is the oxi2012Oxidation number
  49. 49The volume in of solution of required to completely neutralise of solution of is2011Equivalence concept
  50. 50The concentration of oxalic acid is ' ' . of this solution reacts with of acidified . What is the of ' ' oxalic acid solution ? (Assume that2006Equivalence concept

Frequently Asked Questions

1.How many questions are available for Redox Reactions?

This chapter includes 53 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 Redox Reactions chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Redox Reactions an important chapter for TS EAMCET Chemistry?

Redox Reactions has appeared in 17 of the 25 years of TS EAMCET papers covered here, with 53 questions across 43 papers - about one per paper it appears in.

4.What is the difficulty level of Redox Reactions questions in TS EAMCET?

Of the 53 questions analysed for this chapter, 26% are easy, 62% moderate and 11% tough. 2020 had the most, with 8 questions.

5.Which topics in Redox Reactions should I focus on?

These topics have carried the most weightage in Redox Reactions:

  • Oxidation number - 18 questions (34%)
  • Equivalence concept - 10 questions (19%)
  • Types of redox reactions - 9 questions (17%)
  • Types of redox reactions has produced the most tough questions (2).
6.Is Redox Reactions's weightage in TS EAMCET going up or down?

Across all 43 papers analysed, Redox Reactions has averaged about 1.2 questions per paper. In the last three years (2022–2024), that average has fallen, at about 0.9 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.