The p-Block Elements

JEE Advanced · Chemistry · 62 past questions

1. Q1 2026 Paper 1

   Correct statement(s) about the compounds X, Y and Z is(are) (with a figure)

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2. Q2 2026 Paper 1

   Reaction of PtF$_6$ with oxygen (O$_2$) gas results in the formation of an ionic compound, X$^+$Y$^-$.…

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3. Q3 2025 Paper 1

   The heating of NH$_4$NO$_2$ at 60–70 °C and NH$_4$NO$_3$ at 200–250 °C is associated with the formation of…

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4. Q4 2025 Paper 2

   The complete hydrolysis of ICl, ClF$_3$ and BrF$_5$, respectively, gives

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5. Q5 2025 Paper 2

   The compound(s) with P–H bond(s) is(are)

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6. Q6 2024 Paper 1

   At room temperature, disproportionation of an aqueous solution of in situ generated nitrous acid (HNO$_2$)…

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7. Q7 2024 Paper 2

   The species formed on fluorination of phosphorus pentachloride in a polar organic solvent are

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8. Q8 2024 Paper 2

   The compound(s) having peroxide linkage is(are)

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9. Q9 2023 Paper 1

   The stoichiometric reaction of 516 g of dimethyldichlorosilane with water results in a tetrameric cyclic…

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10. Q10 2023 Paper 1

    Match the reactions (in the given stoichiometry of the reactants) in List-I with one of their products given…

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11. Q11 2022 Paper 1

    Dissolving 1.24 g of white phosphorous in boiling NaOH solution in an inert atmosphere gives a gas **Q**. The…

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12. Q12 2022 Paper 1

    The treatment of galena with HNO$_3$ produces a gas that is

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13. Q13 2022 Paper 2

    The reaction of Xe and O$_2$F$_2$ gives a Xe compound **P**. The number of moles of HF produced by the…

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14. Q14 2022 Paper 2

    The reaction of $\mathrm{HClO_3}$ with HCl gives a paramagnetic gas, which upon reaction with $\mathrm{O_3}$…

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15. Q15 2022 Paper 2

    The reaction of $\mathrm{Pb(NO_3)_2}$ and NaCl in water produces a precipitate that dissolves upon the…

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16. Q16 2021 Paper 2

    The correct statement(s) related to oxoacids of phosphorous is(are)

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17. Q17 2020 Paper 1

    With respect to hypochlorite, chlorate and perchlorate ions, choose the correct statement(s).

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18. Q18 2020 Paper 2

    Choose the correct statement(s) among the following.

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19. Q19 2019 Paper 1

    A tin chloride Q undergoes the following reactions (not balanced)…

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20. Q20 2019 Paper 1

    At 143 K, the reaction of $XeF_4$ with $O_2F_2$ produces a xenon compound Y. The total number of lone pair(s)…

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21. Q21 2019 Paper 2

    The amount of water produced (in g) in the oxidation of 1 mole of rhombic sulphur by conc. HNO$_3$ to a…

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22. Q22 2018 Paper 1

    The compound(s) which generate(s) $N_2$ gas upon thermal decomposition below $300^\circ C$ is (are)

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23. Q23 2018 Paper 1

    Based on the compounds of group 15 elements, the correct statement(s) is (are)

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24. Q24 2017 Paper 1

    The correct statement(s) about the oxoacids, HClO$_4$ and HClO, is(are)

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25. Q25 2017 Paper 1

    The colour of the X$_2$ molecules of group 17 elements changes gradually from yellow to violet down the…

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26. Q26 2017 Paper 2

    Which of the following combination will produce H$_2$ gas?

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27. Q27 2017 Paper 2

    The order of the oxidation state of the phosphorus atom in H$_3$PO$_2$, H$_3$PO$_4$, H$_3$PO$_3$, and…

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28. Q28 2017 Paper 2

    Among the following, the correct statement(s) is(are)

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29. Q29 2017 Paper 2

    The option(s) with only amphoteric oxides is(are)

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30. Q30 2017 Paper 2

    Upon heating $\mathrm{KClO_3}$ in the presence of catalytic amount of $\mathrm{MnO_2}$, a gas $\mathbf{W}$ is…

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31. Q31 2017 Paper 2

    Upon heating $\mathrm{KClO_3}$ in the presence of catalytic amount of $\mathrm{MnO_2}$, a gas $\mathbf{W}$ is…

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32. Q32 2016 Paper 1

    The crystalline form of borax has

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33. Q33 2016 Paper 2

    The nitrogen containing compound produced in the reaction of $\mathrm{HNO_3}$ with $\mathrm{P_4O_{10}}$

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34. Q34 2015 Paper 2

    Three moles of $B_2H_6$ are completely reacted with methanol. The number of moles of boron containing product…

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35. Q35 2015 Paper 2

    The correct statement(s) regarding,
    (i) HClO,
    (ii) HClO$_2$,
    (iii) HClO$_3$ and
    (iv) HClO$_4$, is(are)

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36. Q36 2015 Paper 2

    Under hydrolytic conditions, the compounds used for preparation of linear polymer and for chain termination…

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37. Q37 2014 Paper 1

    The correct statement(s) for orthoboric acid is/are

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38. Q38 2014 Paper 2

    The product formed in the reaction of SOCl$_2$ with white phosphorous is

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39. Q39 2014 Paper 2

    Under ambient conditions, the total number of gases released as products in the final step of the reaction… (with a figure)

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40. Q40 2013 Paper 1

    Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of

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41. Q41 2013 Paper 2

    The reactions of $Cl_2$ gas with cold-dilute and hot-concentrated $NaOH$ in water give sodium salts of two…

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42. Q42 2013 Paper 2

    The reactions of $Cl_2$ gas with cold-dilute and hot-concentrated $NaOH$ in water give sodium salts of two…

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43. Q43 2012 Paper 2

    Paragraph for Questions 29 and 30…

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44. Q44 2012 Paper 2

    With respect to graphite and diamond, which of the statement(s) given below is (are) correct ?

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45. Q45 2011 Paper 1

    Extra pure N$_2$ can be obtained by heating

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46. Q46 2011 Paper 2

    Among the following, the number of compounds than can react with $PCl_5$ to give $POCl_3$ is…

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47. Q47 2010 Paper 1

    The value of n in the molecular formula Be$_n$Al$_2$Si$_6$O$_{18}$ is

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48. Q48 2010 Paper 2

    The total number of diprotic acids among the following is…

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49. Q49 2009 Paper 1

    The reaction of P$_4$ with X leads selectively to P$_4$O$_6$. The X is

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50. Q50 2009 Paper 2

    In the reaction…

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51. Q51 2009 Paper 2

    The nitrogen oxide(s) that contain(s) N-N bond(s) is(are)

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52. Q52 2009 Paper 2

    Match each of the reactions given in Column I with the corresponding product(s) given in Column II.

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53. Q53 2009 Paper 2

    The coordination number of Al in the crystalline state of $\mathrm{AlCl_3}$ is

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54. Q54 2008 Paper 1

    Aqueous solution of Na$_2$S$_2$O$_3$ on reaction with Cl$_2$ gives

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55. Q55 2008 Paper 1

    STATEMENT-1 : $\mathrm{Pb^{4+}}$ compounds are stronger oxidizing agents than $\mathrm{Sn^{4+}}$ compounds.…

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56. Q56 2008 Paper 1

    Paragraph for Question Nos. 64 to 66…

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57. Q57 2008 Paper 1

    Paragraph for Question Nos. 64 to 66…

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58. Q58 2008 Paper 1

    Paragraph for Question Nos. 64 to 66…

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59. Q59 2007 Paper 1

    STATEMENT-1 : Boron always forms covalent bond.…

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60. Q60 2007 Paper 1

    STATEMENT-1 : In water, orthoboric acid behaves as a weak monobasic acid.…

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61. Q61 2007 Paper 1

    The structure of XeO$_3$ is

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62. Q62 2007 Paper 1

    XeF$_4$ and XeF$_6$ are expected to be

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