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Chemistry - Hydrogen

Practise 64 TS EAMCET previous year questions on Hydrogen, 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.

Hydrogen has been asked in 21 of the 24 years of TS EAMCET papers analysed (2001–2024), with 64 questions in all. 53% of them were easy, 33% moderate and 14% tough. Most of its questions came from 2020, with 10 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 7 topics are not weighted equally: Preparation and Properties of Water (20 questions, 31%), Hydrides (14 questions, 22%), and Chemical properties of hydrogen peroxide (8 questions, 13%) have been asked the most. Preparation and Properties of Water has also led over the last five years, with 9 questions. Preparation and Properties of Water has produced the most tough questions (4).

  1. 11 mL of " volume" solution on heating gives 20 mL of oxygen gas at STP. The corresponding to " x volume" of is04 May, 2025 (M)Preparation and Properties of Hydrogen Peroxide
  2. 2Identify the electron rich hydrides from the following03 May, 2025 (M)Hydrides
  3. 3Temperature of maximum density of is and is (in K ) is nearly03 May, 2025 (E)Preparation and Properties of Water
  4. 4Match the following List -1 (Reactions) List -2 (Methods) A I Clark's method B II Ion exchange method C III Boiling D (Z= Zeolite) IV Calgon02 May, 2025 (E)Preparation and Properties of Water
  5. 5Identify the pair of hydrides which have polymeric structure11 May, 2024 (M)Hydrides
  6. 6The normality of 20 volume solution of hydrogen peroxide is10 May, 2024 (M)Preparation and Properties of Water
  7. 7The proper conditions of storing are10 May, 2024 (E)Preparation and Properties of Hydrogen Peroxide
  8. 8Observe the following reactions I. II. Identify the correct statement from the following:09 May, 2024 (M)Preparation and Properties of Water
  9. 9The dihedral angles in gaseous and solid phases of molecule respectively are09 May, 2024 (E)Preparation and Properties of Hydrogen Peroxide
  10. 10The hydrides of which group elements of the periodic table form electron precise hydrides?14 May, 2023 (M)Hydrides
  11. 11Identify the correct statements about the hydrides. (I) In saline hydrides oxidation state of hydrogen is +1 (II) is an example of interstit13 May, 2023 (M)Hydrides
  12. 12Identify the correct statements from the following. A. In photosynthesis reaction, water is oxidized to oxygen B. An example for interstitia13 May, 2023 (E)Hydrides
  13. 13Consider the following statements about the hydrides (I) Sodium hydride with water liberates oxygen gas (II) Methane, silane are examples of12 May, 2023 (M)Hydrides
  14. 14The chemical name of calgon is12 May, 2023 (E)Preparation and Properties of Water
  15. 15Deionized water is obtained by passing hard water through20 Jul, 2022 (M)Preparation and Properties of Water
  16. 16Unknown inorganic compound ' ' is used for water softening ' ' reacts with to generate an alkaline compound 'B' whose . 'A' on reaction with20 Jul, 2022 (M)Preparation and Properties of Water
  17. 17"P" In the above reaction product " " is20 Jul, 2022 (E)Chemical properties of heavy water
  18. 18The freezing point of heavy water at 1 atm pressure is19 Jul, 2022 (M)Chemical properties of heavy water
  19. 19The most effective water softening method is18 Jul, 2022 (E)Preparation and Properties of Water
  20. 20The compound used as a moderator in nuclear reactors is06 Aug, 2021 (M)Chemical properties of heavy water
  21. 21Match the following. Column-1 Reaction Column-2 Main product A SO 3 heavy water I C 2 D 2 B CaC 2 heavy water ( excess ) II CD 4 C Al 4 C 3 05 Aug, 2021 (M)Chemical properties of heavy water
  22. 22The major products during the removal of temporary hardness of water are04 Aug, 2021 (E)Preparation and Properties of Water
  23. 23When calcium carbide is reacted with heavy water, which of the following product(s) will be formed I. II. III. IV.14 Sep, 2020 (M)Chemical properties of heavy water
  24. 24At atmospheric pressure and very low temperature, water crystallises to14 Sep, 2020 (E)Preparation and Properties of Water
  25. 25What will be the organic compound formed, when aluminium carbide react with deuterated water?11 Sep, 2020 (M)Chemical properties of heavy water
  26. 26Dihydrogen can be prepared by which of the following reactions. (I) Reaction of granulated with dil. (II) Reaction of Zn with aq. (III) By h11 Sep, 2020 (E)Preparation and Properties of Hydrogen
  27. 27What is the \% strength of 22.4 volume of solution?10 Sep, 2020 (M)Preparation and Properties of Hydrogen Peroxide
  28. 28Hard water contains ion of10 Sep, 2020 (M)Preparation and Properties of Water
  29. 29Which of the following statement is not true about interstitial complexes?10 Sep, 2020 (M)Hydrides
  30. 30With reference to the redox properties of hydrogen peroxide , which of these reactions are feasible? (i) (ii) (iii) (iv)10 Sep, 2020 (E)Chemical properties of hydrogen peroxide
  31. 31Hydrogen peroxide is stored away from light because it can get decomposed when exposed to light as09 Sep, 2020 (M)Preparation and Properties of Hydrogen Peroxide
  32. 32Match the following methods for treating hardness of water with their corresponding reagents used. {array}{|c|c|c|} List-I & & List II \\ A.09 Sep, 2020 (E)Preparation and Properties of Water
  33. 33If one wants to make methanol out of synthesis gas. What should be the ratio of the gaseous components in the synthesis gas?04 May, 2019 (M)Chemical properties of hydrogen
  34. 34What is the approximate volume (in ) of 10 vol solution that will react completely with of solution in acidic medium?03 May, 2019 (M)Chemical properties of hydrogen peroxide
  35. 35Assertion (A) Ferricyanide ion oxidises to in basic medium. Reason (R) Oxidation product of is . Which of the following is true?07 May, 2018 (M)Chemical properties of hydrogen peroxide
  36. 36Identify the reactions in which is liberated? (i) (ii) (iii) (iv) (v)05 May, 2018 (M)Preparation and Properties of Hydrogen
  37. 37can be prepared by the reaction of05 May, 2018 (M)Hydrides
  38. 38Hardness of water is . Calculate the molarity and normality of of the water05 May, 2018 (E)Preparation and Properties of Water
  39. 39The natural relative abundance of isotopes of hydrogen is04 May, 2018 (E)Preparation and Properties of Hydrogen
  40. 40Reaction of calgon with hard water containing ions produce2017Preparation and Properties of Water
  41. 41Which one of the following is not a method to remove permanent hardness of water?2015Preparation and Properties of Water
  42. 42Temporary hardness of water is removed in Clark's process by adding2014Preparation and Properties of Water
  43. 43Observe the following statements 1. Heavy water is harmful for the growth of animals. 2. Heavy water reacts with and forms deuterated acetyl2013Chemical properties of heavy water
  44. 44Solution " " contains and . of when titrated using methyl orange indicator consumed of solution. In another experiment, of solution when tit2013Preparation and Properties of Water
  45. 45The product(s) formed when reacts with disodium hydrogen phosphate is2012Chemical properties of hydrogen peroxide
  46. 46Which property among the following is same for both hydrogen and deuterium molecules?2011Preparation and Properties of Hydrogen
  47. 47The orange coloured compound formed when is added to solution acidified with conc is2010Preparation and Properties of Hydrogen Peroxide
  48. 48Which one of the following is most acidic?2010Hydrides
  49. 49Which one of the following reactions represents the oxidising property of ?2008Chemical properties of hydrogen peroxide
  50. 50The correct order of reducing abilities of hydrides of V group elements is2008Hydrides

Frequently Asked Questions

1.How many questions are available for Hydrogen?

This chapter includes 64 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 Hydrogen chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Hydrogen an important chapter for TS EAMCET Chemistry?

Hydrogen has appeared in 22 of the 25 years of TS EAMCET papers covered here, with 64 questions across 49 papers - about one per paper it appears in.

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

Of the 64 questions analysed for this chapter, 53% are easy, 33% moderate and 14% tough. 2020 had the most, with 10 questions.

5.Which topics in Hydrogen should I focus on?

These topics have carried the most weightage in Hydrogen:

  • Preparation and Properties of Water - 20 questions (31%)
  • Hydrides - 14 questions (22%)
  • Chemical properties of hydrogen peroxide - 8 questions (13%)
  • Preparation and Properties of Water has produced the most tough questions (4).
6.Is Hydrogen's weightage in TS EAMCET going up or down?

Across all 49 papers analysed, Hydrogen has averaged about 1.3 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.