1.

    According to VBT, the number of unpaired electrons in Ni(CO)4Ni(CO)_4 is:

    A

    0

    B

    1

    C

    2

    D

    3

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Valence Bond Theory, Coordination Compounds, Strong Field Ligands, Nickel Tetracarbonyl

    Related Questions

    1.

    What is the hybridization and magnetic property of [Ni(CN)4]2−\left[ Ni(CN)_4 \right]^{2-}?

    A

    dsp2dsp^2, diamagnetic

    B

    sp3sp^3, paramagnetic

    C

    dsp2dsp^2, paramagnetic

    D

    sp3sp^3, diamagnetic

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    PYQ YEAR: 2018
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Coordination Compounds, Hybridization, Magnetic Properties

    2.

    VBT explains the formation of a molecule by:

    A

    Transfer of electrons

    B

    Sharing of electrons between nuclei

    C

    Overlap of atomic orbitals

    D

    Electrostatic attraction between ions

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Valence Bond Theory, Molecular Formation

    3.

    How many hybrid orbitals are formed in sp3dsp^3d hybridization?

    A

    5

    B

    4

    C

    3

    D

    6

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Valence Bond Theory, Hybridization, Hybrid Orbitals

    4.

    Which of the following molecules has the maximum number of sigma (σ) and pi (π) bonds considering resonance structures?

    A

    Benzene (C6H6)

    B

    Carbon dioxide (CO2)

    C

    Sulfur dioxide (SO2)

    D

    Sulfur trioxide (SO3)

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Valence Bond Theory, Resonance, Sigma and Pi Bonds

    5.

    Which of the following phenomenon will occur when two atoms of same spin will react?

    A

    Repulsion

    B

    Bonding

    C

    No interaction

    D

    Formation of ionic bond

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :atomic orbitals, electron spin, Pauli exclusion principle, chemical bonding

    6.

    Which of the following molecule does not have coordinate bond

    A

    NH₃

    B

    H₃O⁺

    C

    BF₃.NH₃

    D

    CH₄

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :coordinate bond, Lewis structure, covalent bond, ionic bond

    7.

    According to VBT, the number of covalent bonds an atom can form is equal to:

    A

    The number of unpaired electrons

    B

    The number of paired electrons

    C

    The total number of electrons

    D

    The number of protons

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Valence Bond Theory, Covalent Bond, Unpaired Electrons

    8.

    Which of the following complexes would exhibit similar magnetic properties to {[Mn(CN)6]}3−\{[Mn(CN)_6]\}^{3-}?

    A

    [Fe(CN)6]4−[Fe(CN)_6]^{4-}

    B

    [Cr(NH3)6]2+[Cr(NH_3)_6]^{2+}

    C

    [Fe(H2O)6]2+[Fe(H₂O)₆]^{2+}

    D

    [CoF6]3−[CoF₆]^{3-}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    PYQ YEAR: 2017
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1.5 mins
    🔄Ncert Concepts :Coordination Compounds, Magnetism, Ligand Field Theory

    9.

    If one of the carbon-hydrogen bonds in pyridine is replaced by a carbon-chlorine bond, what would be the total number of σ\sigma bonds in the new molecule?

    A

    10

    B

    11

    C

    12

    D

    13

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    PYQ YEAR: 2023
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Chemical Bonding, Aromatic Compounds, Heterocyclic Compounds

    10.

    The hybridization of the central atom in PCl5PCl_5 is:

    A

    sp3sp^3

    B

    sp3dsp^3d

    C

    sp3d2sp^3d^2

    D

    sp2sp^2

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Hybridization, Steric Number, Phosphorus Pentachloride

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