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Hybridisation of the central metal in a given complex (valence bond theory)

This type of question, asked 10 times: May 2021 S1, May 2022 S1, 11 May 2023 S1, 15 May 2023 S2, 22 Apr 2025 S1, 11 Apr 2026 S1, 13 Apr 2026 S2, 19 Apr 2026 S1, 14 May 2026 S1, 15 May 2026 S2. All 10 questions below, oldest first.

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  1. Question 1

    May 2021 S1

    71
    Hybridisation of [Ni(CN)4]2−[\text{Ni(CN)}_4]^{2-} is

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  2. Question 2

    May 2022 S1

    54
    Identify the type of hybridization involved in hexaaminecobalt(III) complex ion.

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  3. Question 3

    11 May 2023 S1

    69
    Identify the type of hybridization present in Ni(CN)42−Ni(CN)_4^{2-}.

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  4. Question 4

    15 May 2023 S2

    89
    What type of hybridization is present in [Co(NH3)6]3+[\text{Co(NH}_3)_6]^{3+} complex?

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  5. Question 5

    22 Apr 2025 S1

    64
    What type of hybridization is present in square planar geometry of complex [Ni(CN)4]2−\left\lbrack Ni(CN)_{4} \right\rbrack^{2 -}

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  6. Question 6

    11 Apr 2026 S1

    34
    Identify the hybridization in central metal of [Fe(CO)5][\mathrm{Fe(CO)_5}] complex.

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  7. Question 7

    13 Apr 2026 S2

    34
    Which of the following statements is correct with respect to [Mn(CN)6]3−[\mathrm{Mn(CN)_6}]^{3-} ?

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  8. Question 8

    19 Apr 2026 S1

    35
    What type of hybridization is found in [Ni(Cl)4]2−[\mathrm{Ni(Cl)_4}]^{2-}?

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  9. Question 9

    14 May 2026 S1

    34
    Identify the hybridization and magnetic nature of [CoF6]3−[\mathrm{CoF_6}]^{3-} coordinate complex.

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  10. Question 10

    15 May 2026 S2

    34
    What type of hybridization is present in [CoF6]3−\mathrm{[CoF_6]^{3-}} ?

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