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Hybridisation of the central atom in given molecules or ions

This type of question, asked 15 times: 2021 Paper 11, 2021 Paper 12, 2021 Paper 13, 14 Jun 2022, 28 Jun 2022, 25 Jul 2022, 29 Jul 2022, 31 Jan 2024, 4 Apr 2024, 6 Apr 2024, 9 Apr 2024, 3 Apr 2025, 7 Apr 2025, 24 Jan 2026 S1, 5 Apr 2026 S1. All 16 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    2021 Paper 11

    29
    The hybridisation of Xenon in XeOF4XeOF_{4} is

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  2. Question 2

    2021 Paper 12

    21
    The hybridisation of NO2−,NO2+NO_{2}^{-},NO_{2}^{+}and NH4+NH_{4}^{+}are respectively:

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  3. Question 3

    2021 Paper 13

    25
    Match the following.
    CompoundHybridisation
    I. SF4SF_{4}(A) sp3d2sp^{3}d^{2}
    II. IF5IF_{5}(B) sp3dsp^{3}d
    III. NO2+NO_{2}^{+}(C) sp3sp^{3}
    IV. NH4+NH_{4}^{+}(D) spsp
    (E) sp3d3sp^{3}d^{3}

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  4. Question 4

    14 Jun 2022

    33
    Match List - I with List - II
    List - IList - II
    (A)
    [PtCl4]2−\left\lbrack PtCl_{4} \right\rbrack^{2 -}
    		(I)
    sp3 dsp^{3}\text{ }d
    (B)
    BrF5BrF_{5}
    		(II)
    d2sp3d^{2}sp^{3}
    (C)
    PCl5PCl_{5}
    		(III)
    dsp2dsp^{2}
    (D)
    [Co(NH3)6]3+\left\lbrack Co\left( NH_{3} \right)_{6} \right\rbrack^{3 +}
    		(IV)
    sp3 d2sp^{3}{\text{ }d}^{2}

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  5. Question 5

    28 Jun 2022

    53
    The hybridization of PP exhibited in PF5PF_{5} is spx dysp^{x}{\text{ }d}^{y}. The value of yy is

  6. Question 6

    25 Jul 2022

    121
    Match List I with List II:
    List-I (molecule)List-II (hybridization; shape)
    A. XeO3XeO_{3}I. sp3 d;sp^{3}\text{ }d; linear
    B. XeF2XeF_{2}II. sp3;sp^{3}; pyramidal
    C. XeOF4XeOF_{4}III. sp3 d3;sp^{3}{\text{ }d}^{3}; distorted octahedral
    D. XeF6XeF_{6}IV. sp3 d2;sp^{3}{\text{ }d}^{2}; square pyramidal
    Choose the correct answer from the options given below:

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  7. Question 7

    29 Jul 2022

    142
    Consider, PF5,BrF5,PCl3,SF6,[ICl4]−,ClF3PF_{5},BrF_{5},PCl_{3},SF_{6},\left\lbrack ICl_{4} \right\rbrack^{-},ClF_{3} and IF5IF_{5}. Amongst the above molecule(s)/ion(s), the number of molecule(s)/ion(s) having sp3 d2sp^{3}{\text{ }d}^{2} hybridisation is_____

  8. Question 8

    31 Jan 2024

    55
    The number of species from the following in which the central atom uses sp3sp^{3} hybrid orbitals in its bonding is _______ .
    NH3,SO2,SiO2,BeCl2,CO2,H2O,CH4,BF3NH_{3},SO_{2},SiO_{2},BeCl_{2},CO_{2},H_{2}O,CH_{4},BF_{3}

  9. Question 9

    4 Apr 2024

    40
    Number of molecules/ions from the following in which the central atom is involved in sp3sp^{3} hybridization is _____ .
    NO3−,BCl3,ClO2−,ClO3−NO_{3}^{-},BCl_{3},ClO_{2}^{-},ClO_{3}^{-}

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  10. Question 10

    6 Apr 2024

    131
    Given below are two statements: Statement I: PF5PF_{5} and BrF5BrF_{5} both exhibit sp3 dsp^{3}\text{ }d hybridisation. Statement II: Both SF6SF_{6} and [Co(NH3)6]3+\left\lbrack Co\left( NH_{3} \right)_{6} \right\rbrack^{3 +} exhibit sp3 d2sp^{3}{\text{ }d}^{2} hybridisation. In the light of the above statements, choose the correct answer from the options given below:

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  11. Question 11

    6 Apr 2024

    147
    Total number of species from the following with central atom utilising sp2sp^{2} hybrid orbitals for bonding is ______ NH3,SO2,SiO2,BeCl2,C2H2,C2H4,BCl3,HCHONH_{3},SO_{2},SiO_{2},BeCl_{2},C_{2}H_{2},C_{2}H_{4},BCl_{3},HCHO, C6H6,BF3,C2H4Cl2C_{6}H_{6},BF_{3},C_{2}H_{4}Cl_{2}

  12. Question 12

    9 Apr 2024

    35
    In which one of the following pairs the central atoms exhibit sp2sp^{2} hybridization?

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  13. Question 13

    3 Apr 2025

    43
    Match the LIST-I with LIST-II
    LIST-I (Molecules/ion)LIST-II (Hybridisation of central atom)
    A.
    PF5{PF}_{5}
    		I
    dsp2{dsp}^{2}
    B.
    SF6{SF}_{6}
    		II.
    sp3 d{sp}^{3}\text{ }d
    C.
    Ni(CO)4Ni(CO)_{4}
    		III.
    sp3 d2{sp}^{3}{\text{ }d}^{2}
    D.
    [PtCl4]2−\left\lbrack {PtCl}_{4} \right\rbrack^{2 -}
    		IV.
    sp3{sp}^{3}
    Choose the correct answer from the options given below:

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  14. Question 14

    7 Apr 2025

    113
    In SO2,NO2−SO_{2},NO_{2}^{-}and N3−N_{3}^{-}the hybridizations at the central atom are respectively :

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  15. Question 15

    24 Jan 2026 S1

    31
    Among the following, the CORRECT combinations are : (A) IF3→{IF}_{3} \rightarrow T-shaped ( sp3 d{sp}^{3}\text{ }d ) (B) IF5→{IF}_{5} \rightarrow Square pyramidal ( sp3 d2{sp}^{3}{\text{ }d}^{2} ) (C) IF7→{IF}_{7} \rightarrow Pentagonal bipyramidal ( sp3 d3{sp}^{3}{\text{ }d}^{3} ) (D) ClO4−→ClO_{4}^{-}\rightarrow Square planar ( sp2 dsp^{2}\text{ }d ) Choose the correct answer from the options given below :

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  16. Question 16

    5 Apr 2026 S1

    46
    Consider the following species BrF5,XeF5−,BF4−,ICl4−,XeF4,SF4,NH4+,ClF3,XeF2,ICl2−{BrF}_{5},{XeF}_{5}^{-},{BF}_{4}^{-},{ICl}_{4}^{-},{XeF}_{4},{SF}_{4},{NH}_{4}^{+},{ClF}_{3},{XeF}_{2},{ICl}_{2}^{-}Number of species having sp  3 d\ ^{3}\text{ }d hybridized central atom is ____\_\_\_\_