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Chemistry - p Block Elements (Group 15, 16, 17 & 18)

Practise 55 JEE Advanced previous year questions on p Block Elements (Group 15, 16, 17 & 18), compiled from papers spanning 2007 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty JEE Advanced tests.

p Block Elements (Group 15, 16, 17 & 18) has been asked in 18 of the 27 years of JEE Advanced papers analysed (2000–2026), with 55 questions in all. 36% of them were easy, 58% moderate and 5% tough. Most of its questions came from 2022, with 5 questions that year. In the last three years (2024–2026) it had 9 questions across 6 papers, about 1.5 per paper.

The chapter's 6 topics are not weighted equally: Phosphorus and Its Compounds (16 questions, 29%), Nitrogen and Its Compounds (16 questions, 29%), and Noble Gases (9 questions, 16%) have been asked the most. Over the last five years the most frequent topics have been Nitrogen and Its Compounds (4), Phosphorus and Its Compounds (3), and Halogens and Its Compounds (3). Nitrogen and Its Compounds has produced the most tough questions (2).

  1. 1Correct statement(s) about the compounds , and is(are)2026 (Paper 1)Halogens and Its Compounds
  2. 2Correct statement(s) about the compounds , and is(are)2026 (Paper 2)Noble Gases
  3. 3The heating of at and at is associated with the formation of nitrogen containing compounds and , respectively. and , respectively, are2025 (Paper 1)Nitrogen and Its Compounds
  4. 4During sodium nitroprusside test of sulphide ion in an aqueous solution, one of the ligands coordinated to the metal ion is converted to2025 (Paper 2)Sulphur and Its Compounds
  5. 5The complete hydrolysis of and , respectively, gives2025 (Paper 2)Halogens and Its Compounds
  6. 6The compound(s) with bond(s) is(are)2025 (Paper 2)Phosphorus and Its Compounds
  7. 7In the following reaction sequences, the major product is: L-Glucose \( [ { (ii) } {Cr}_2 {O}_3, 775 {~K}, 10-20 { atm }]{ { (i) } {HI}, } {2024 (Paper 2)Phosphorus and Its Compounds
  8. 8The species formed on fluorination of phosphorus pentachloride in a polar organic solvent are :2024 (Paper 2)Phosphorus and Its Compounds
  9. 9The compound (s) having peroxide linkage is(are) :2024 (Paper 2)Sulphur and Its Compounds
  10. 10Dissolving 1 . 24 g of white phosphorous in boiling NaOH solution in an inert atmosphere gives a gas Q . The amount of CuSO 4 (in g ) requir2022 (Paper 1)Nitrogen and Its Compounds
  11. 11The reaction of Xe and O 2 F 2 gives a Xe compound P . The number of moles of HF produced by the complete hydrolysis of 1 mol of P is _____ 2022 (Paper 2)Noble Gases
  12. 12The compound(s) which react(s) with NH 3 to give boron nitride BN is(are)2022 (Paper 2)Nitrogen and Its Compounds
  13. 13The reaction of HClO 3 with HCl gives a paramagnetic gas, which upon reaction with O 3 produces2022 (Paper 2)Halogens and Its Compounds
  14. 14The reaction of Pb NO 3 2 and NaCl in water produces a precipitate that dissolves upon the addition of HCl of appropriate concentration. The2022 (Paper 2)Nitrogen and Its Compounds
  15. 15The correct statement(s) related to oxoacids of phosphorous is(are)2021 (Paper 2)Phosphorus and Its Compounds
  16. 16Paragraph: The reaction of with freshly prepared solution produces a dark blue precipitate called Turnbull's blue. Reaction of with the solu2021 (Paper 2)Nitrogen and Its Compounds
  17. 17Ozonolysis of ClO 2 produces an oxide of chlorine. The average oxidation state of chlorine in this oxide is ______ .2021 (Paper 2)Halogens and Its Compounds
  18. 18With respect to hypochlorite, chlorate and perchlorate ions, choose the correct statement(s).2020 (Paper 1)Halogens and Its Compounds
  19. 19At 143 K , the reaction of X e F 4 with O 2 F 2 produces a xenon compound Y . The total number of lone pair(s) of electrons present on the w2019 (Paper 1)Noble Gases
  20. 20With reference to aqua regia , choose the correct option(s).2019 (Paper 2)Nitrogen and Its Compounds
  21. 21The amount of water produced ( in g ) in the oxidation of 1 mole of rhombic sulphur by conc. H N O 3 to a compound with the highest oxidatio2019 (Paper 2)Phosphorus and Its Compounds
  22. 22The compound(s) which generate(s) N 2 gas upon thermal decomposition below 300 o C is (are)2018 (Paper 1)Nitrogen and Its Compounds
  23. 23Based on the compounds of group 15 elements, the correct statement(s) is (are)2018 (Paper 1)Phosphorus and Its Compounds
  24. 24The total number of compounds having at least one bridging oxo group among the molecules given below is N 2 O 5 , P 4 O 6 , P 4 O 8 , H 4 P 2018 (Paper 2)Phosphorus and Its Compounds
  25. 25The correct statements about the oxoacids, HClO 4 and HClO are,2017 (Paper 1)Halogens and Its Compounds
  26. 26Paragraph: Upon heating in the presence of catalytic amount of , a gas is formed. Excess amount of reacts with white phosphorus to give . Th2017 (Paper 2)Phosphorus and Its Compounds
  27. 27Paragraph: Upon heating in the presence of catalytic amount of , a gas is formed. Excess amount of reacts with white phosphorus to give . Th2017 (Paper 2)Nitrogen and Its Compounds
  28. 28The nitrogen containing compound produced in the reaction of H N O 3 with P 4 O 102016 (Paper 2)Phosphorus and Its Compounds
  29. 29The total number of lone pairs of electrons in N 2 O 3 is2015 (Paper 1)Nitrogen and Its Compounds
  30. 30The correct statement(s) regarding, (i) H C l O (ii) H C l O 2 (iii) H C l O 3 and (iv) H C l O 4 is /are2015 (Paper 2)Halogens and Its Compounds
  31. 31The pair(s) of reagents that yield paramagnetic species is/are2014 (Paper 1)Nitrogen and Its Compounds
  32. 32Under ambient conditions, the total number of gases released as products in the final step of the reaction scheme shown below is2014 (Paper 2)Noble Gases
  33. 33The product formed in the reaction of S O C l 2 with white phosphorous is2014 (Paper 2)Phosphorus and Its Compounds
  34. 34Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of2013 (Paper 1)Nitrogen and Its Compounds
  35. 35The correct statement(s) about O 3 is(are)2013 (Paper 2)Oxygen and Its Compounds
  36. 36Paragraph: The reactions of gas with cold-dilute and hot-concentrated in water give sodium salts of two (different) oxoacids of chlorine, an2013 (Paper 2)Phosphorus and Its Compounds
  37. 37Paragraph: The reactions of gas with cold-dilute and hot-concentrated in water give sodium salts of two (different) oxoacids of chlorine, an2013 (Paper 2)Halogens and Its Compounds
  38. 38The unbalanced chemical reactions given in List I show missing reagent or condition (?) which are provided in list II. match List I with Lis2013 (Paper 2)Noble Gases
  39. 39Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen?2012 (Paper 1)Nitrogen and Its Compounds
  40. 40The reaction of white phosphorus with aqueous gives phosphine along with another phosphorus containing compound. The reaction type; the oxid2012 (Paper 2)Phosphorus and Its Compounds
  41. 41The shape of molecule is2012 (Paper 2)Noble Gases
  42. 42Extra pure can be obtained by heating2011 (Paper 1)Nitrogen and Its Compounds
  43. 43The difference in the oxidation numbers of the two types of sulphur atoms in is2011 (Paper 1)Sulphur and Its Compounds
  44. 44Passing gas into a mixture of and ions in an acidified aqueous solution precipitates2011 (Paper 2)Sulphur and Its Compounds
  45. 45Among the following, the number of compounds than can react with to give is .2011 (Paper 2)Phosphorus and Its Compounds
  46. 46The reaction of with leads selectively to . The is2009 (Paper 1)Phosphorus and Its Compounds
  47. 47The nitrogen oxide(s) that contain(s) N.N bond(s) is (are)2009 (Paper 2)Nitrogen and Its Compounds
  48. 48Match each of the reactions given in Column I with the corresponding products(s) given in Column II.2009 (Paper 2)Nitrogen and Its Compounds
  49. 49Preview not available - open to view this question.2008 (Paper 1)Sulphur and Its Compounds
  50. 50Paragraph: There are some deposits of nitrates and phosphates in earth's crust. Nitrates are more soluble in water. Nitrates are difficult t2008 (Paper 1)Phosphorus and Its Compounds

Frequently Asked Questions

1.How many questions are available for p Block Elements (Group 15, 16, 17 & 18)?

This chapter includes 55 questions compiled from JEE Advanced papers spanning 2007 to 2026.

2.Are these questions only from JEE Advanced, or from other exams too?

These are JEE Advanced questions specifically for the p Block Elements (Group 15, 16, 17 & 18) chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is p Block Elements (Group 15, 16, 17 & 18) an important chapter for JEE Advanced Chemistry?

p Block Elements (Group 15, 16, 17 & 18) has appeared in 18 of the 21 years of JEE Advanced papers covered here, with 55 questions across 30 papers - about 2 per paper it appears in.

4.What is the difficulty level of p Block Elements (Group 15, 16, 17 & 18) questions in JEE Advanced?

Of the 55 questions analysed for this chapter, 36% are easy, 58% moderate and 5% tough. 2022 had the most, with 5 questions.

5.Which topics in p Block Elements (Group 15, 16, 17 & 18) should I focus on?

These topics have carried the most weightage in p Block Elements (Group 15, 16, 17 & 18):

  • Phosphorus and Its Compounds - 16 questions (29%)
  • Nitrogen and Its Compounds - 16 questions (29%)
  • Noble Gases - 9 questions (16%)
  • Nitrogen and Its Compounds has produced the most tough questions (2).
6.Is p Block Elements (Group 15, 16, 17 & 18)'s weightage in JEE Advanced going up or down?

Across all 30 papers analysed, p Block Elements (Group 15, 16, 17 & 18) has averaged about 1.8 questions per paper. In the last three years (2024–2026), that average has fallen, at about 1.5 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.