PYQ Vault

Shape of given molecules or ions by VSEPR theory

This type of question, asked 13 times: 2021 Paper 2, 2021 Paper 7, 2021 Paper 8, 27 Jun 2022, 26 Jul 2022, 31 Jan 2023, 11 Apr 2023, 30 Jan 2024, 6 Apr 2024, 8 Apr 2024, 28 Jan 2025, 28 Jan 2026 S2, 8 Apr 2026 S2. All 14 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    2021 Paper 2

    46
    The correct shape and I-I-I bond angles respectively in I3−I_{3}^{-}ion are:

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  2. Question 2

    2021 Paper 7

    34
    A central atom in a molecule has two lone pairs of electrons and forms three single bonds. The shape of this molecule is:

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  3. Question 3

    2021 Paper 8

    43
    Amongst the following, the linear species is:

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  4. Question 4

    27 Jun 2022

    32
    Based upon VSEPR theory, match the shape (geometry) of the molecules in List-I with the molecules in List-II and select the most appropriate option List-I LIST-II Shape Molecules (A) T-shaped (I) XeF4XeF_{4} (B) Trigonal planar (II) SF4SF_{4} (C) Square planar (III) ClF3ClF_{3} (D) See-saw (IV) BF3BF_{3}

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  5. Question 5

    26 Jul 2022

    31
    Match List - I with List - II. List -- I List - II (Compound) (Shape) (A) BrF5BrF_{5} (I) bent (B) [CrF6]3−\left\lbrack CrF_{6} \right\rbrack^{3 -} (II) square pyramidal (C) O3O_{3} (III) trigonal bipyramidal (D) PCl5PCl_{5} (IV) octahedral Choose the correct answer from the options given below :

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  6. Question 6

    31 Jan 2023

    40
    Match List I with List II
    List IList II
    A.XeF4XeF_{4}I.See-saw
    B.SF4SF_{4}II.Square planar
    C.NH4+NH_{4}^{+}III.Bent T-shaped
    D.BrF3BrF_{3}IV.Tetrahedral
    Choose the correct answer from the options given below:

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  7. Question 7

    11 Apr 2023

    40
    Match List-I with List-II: List-I (Species): (A) H3O+H_{3}O^{+}; (B) Acetylide anion; (C) NH4+NH_{4}^{+}; (D) ClO2−ClO_{2}^{-}. List-II (Geometry/Shape): (I) Tetrahedral; (II) Linear; (III) Pyramidal; (IV) Bent. Choose the correct answer from the options given below:

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  8. Question 8

    30 Jan 2024

    129
    The molecule/ion with square pyramidal shape is:

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  9. Question 9

    30 Jan 2024

    41
    Match List-I with List-II List-I List-II Molecule Shape (A) BrF5BrF_{5} (I) T-shape (B) H2OH_{2}O (II) See saw (C) ClF3ClF_{3} (III) Bent (D) SF4SF_{4} (IV) Square pyramidal

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  10. Question 10

    6 Apr 2024

    39
    Match List I with List II :
    LIST I (Compound / Species)LIST II (Shape / Geometry)
    A.
    SF4SF_{4}
    I.Tetrahedral
    B.
    BrF3BrF_{3}
    II.Pyramidal
    C.
    BrO3−BrO_{3}^{-}
    III.See saw
    D.
    NH4+NH_{4}^{+}
    IV.Bent T-shape
    Choose the correct answer from the options given below:

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  11. Question 11

    8 Apr 2024

    37
    Match List I with List II
    List-I (Molecule)List-II (Shape)
    A
    NH3NH_{3}
    I.Square pyramid
    B.
    BrF5BrF_{5}
    II.Tetrahedral
    C.
    PCl5PCl_{5}
    IIITrigonal pyramidal
    D.
    CH4CH_{4}
    IVTrigonal bipyramidal
    Choose the correct answer from the option below:

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  12. Question 12

    28 Jan 2025

    35
    The molecules having square pyramidal geometry are

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  13. Question 13

    28 Jan 2026 S2

    37
    Match List-I with List-II according to shape. List-I List-II (A) XeO3{XeO}_{3} (I) BrF5{BrF}_{5} (B) XeF2{XeF}_{2} (II) NH3{NH}_{3} (C) XeO2 F2{XeO}_{2}{\text{ }F}_{2} (III) [I3]−\left\lbrack I_{3} \right\rbrack^{-} (D) XeOF4{XeOF}_{4} (IV)  SF4\ {SF}_{4} Choose the correct answer from the options given below:

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  14. Question 14

    8 Apr 2026 S2

    28
    Bromine trifluoride autoionizes to form BrF2⊕BrF_{2}^{\oplus} and BrF4⊖BrF_{4}^{\ominus}. The shapes of the cation and anion are respectively ____\_\_\_\_ , and ____\_\_\_\_ .

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