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The p-Block Elements

JEE Mains Chemistry. Try each one first, then open its answer.

Top 10 JEE Mains PYQs to practise first

The questions and kinds of question asked most often come first. Each one says how often and in which papers.

  1. Question 1

    This type asked 8 times: 29 Jan 2023, 4 Apr 2024, 5 Apr 2024, 9 Apr 2024, 2 Apr 2025, 3 Apr 2025, 4 Apr 2025, 23 Jan 2026 S1. This one: 23 Jan 2026 S1 See all 8 of this type

    44
    The correct statements from the following are : (A) Ionic radii of trivalent cations of group 13 elements decreases down the group. (B) Electronegativity of group 13 elements decreases down the group. (C) Among the group 13 elements, Boron has highest first ionisation enthalpy. (D) The trichloride and triiodide of group 13 elements are covalent in nature. Choose the correct answer from the options given below :

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  2. Question 2

    This type asked 7 times: 2021 Paper 5, 2021 Paper 13, 30 Jan 2024, 1 Feb 2024, 28 Jan 2025, 28 Jan 2026 S1, 8 Apr 2026 S2. This one: 8 Apr 2026 S2 See all 7 of this type

    34
    Find the correct statements related to group 15 hydrides. (A) Reducing nature increases from NH3{NH}_{3} to BiH3{BiH}_{3} (B) Tendency to donate lone pair of electrons decreases from NH3{NH}_{3} to BiH3{BiH}_{3} (C) The stability of hydrides decreases from NH3{NH}_{3} to BiH3{BiH}_{3} (D) HEH bond angle decreases from NH3{NH}_{3} to SbH3{SbH}_{3} ( E=E = Elements of group 15) Choose the correct answer from the options given below :

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  3. Question 3

    This type asked 7 times: 2021 Paper 8, 2021 Paper 11, 2021 Paper 24, 25 Jun 2022, 26 Jun 2022, 28 Jun 2022, 6 Apr 2023. This one: 6 Apr 2023 See all 7 of this type

    46
    Match List I with List II
    List I (Compound)List II (Type of bond)
    (A)N2O4N_{2}O_{4}(I)1 N=O1\text{ }N = O bond
    (B)NO2NO_{2}(II)1 N−O−N1\text{ }N - O - N bond
    (C)N2O5N_{2}O_{5}(III)1 N−N1\text{ }N - N bond
    (D)N2ON_{2}O(IV)1 N=N/N≡N1\text{ }N = N/N \equiv N bond
    Choose the correct answer from the options given below:

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  4. Question 4

    This type asked 6 times: 14 Jun 2022, 8 Apr 2024, 22 Jan 2025, 4 Apr 2025, 22 Jan 2026 S1, 5 Apr 2026 S1. This one: 5 Apr 2026 S1 See all 6 of this type

    34
    Correct statements from the following are : (A) Nitrogen in oxidation states from +1 to +4 disproportionate in acid medium. (B) Nitrogen has the ability of form dπ−pπd\pi - p\pi multiple bonds with itself and other elements with small size and high electronegativity. (C) N-N single bond is stronger than P-P single bond. (D) Nitrogen has highest density in its group due to small size. (E) The maximum covalency of nitrogen is four since it has only four valence orbitals for bonding. Choose the correct answer from the options given below :

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  5. Question 5

    This type asked 6 times: 26 Jun 2022, 27 Jun 2022, 29 Jun 2022, 28 Jul 2022, 25 Jan 2023, 11 Apr 2023. This one: 11 Apr 2023 See all 6 of this type

    132
    One mole of P4P_{4} reacts with 8 moles of SOCl2SOCl_{2} to give 4 moles of A,xA,x mole of SO2SO_{2} and 2 moles of B. A, B and xx respectively are

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  6. Question 6

    This type asked 5 times: 6 Apr 2024, 29 Jan 2025, 7 Apr 2025, 4 Apr 2026 S2, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 5 of this type

    34
    Given below are two statements : Statement-I : Aluminum is more electropositive than thallium as the standard electrode potential value of EAl3+/AloE_{{Al}^{3 +}/Al}^{o} is negative and ETl3+/TloE_{{Tl}^{3 +}/Tl}^{o} is positive. Statement-II : The sum of first three ionization enthalpies of boron is very high when compared to that of aluminum. Due to this reason boron forms covalent compounds only and aluminium forms Al3+{Al}^{3 +} ion. In the light of the above statements, choose the correct answer from the options given below.

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  7. Question 7

    This type asked 5 times: 2021 Paper 1, 29 Jul 2022, 29 Jan 2023, 31 Jan 2023, 28 Jan 2026 S2. This one: 28 Jan 2026 S2 See all 5 of this type

    42
    Consider the following reactions. Na2B4O7→Δ2X+Y\mathrm{Na_2B_4O_7 \xrightarrow{\Delta} 2X + Y} CuSO4+Y→non-luminous flameZ+SO3\mathrm{CuSO_4 + Y \xrightarrow{\text{non-luminous flame}} Z + SO_3} 2Z+2X+C→luminous flame2Q+Na2B4O7+CO\mathrm{2Z + 2X + C \xrightarrow{\text{luminous flame}} 2Q + Na_2B_4O_7 + CO} The oxidation states of Cu in Z and Q, respectively are:

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  8. Question 8

    This type asked 5 times: 2021 Paper 20, 2021 Paper 23, 28 Jun 2022, 29 Jul 2022, 24 Jan 2023. This one: 24 Jan 2023 See all 5 of this type

    144
    Sum of π\pi - bonds present in peroxodisulphuric acid and pyrosulphuric acid is:

  9. Question 9

    This type asked 5 times: 2021 Paper 6, 2021 Paper 9, 2021 Paper 19, 25 Jun 2022, 26 Jul 2022. This one: 26 Jul 2022 See all 5 of this type

    146
    The number of non-ionisable protons present in the product BB obtained from the following reaction is
     . C2H5OH+PCl3→C2H5Cl+A\text{~.~}C_{2}H_{5}OH +PCl_{3}\rightarrow C_{2}H_{5}Cl + A
    A+PCl3→BA +PCl_{3}\rightarrow B

  10. Question 10

    This type asked 4 times: 2021 Paper 25, 30 Jan 2023, 30 Jan 2024, 5 Apr 2026 S2. This one: 5 Apr 2026 S2 See all 4 of this type

    45
    A paper dipped in a dil. H2SO4H_{2}SO_{4} solution of ' X ' upon treatment with SO2SO_{2} gas turns into green. The compound ' X ' is :

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