1.

    A covalent bond is formed between the atoms by the overlapping of orbitals containing:

    A

    Single electron

    B

    Paired electron

    C

    Single electron with parallel spin

    D

    Single electron with opposite spin

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :covalent bonding, atomic orbitals, electron spin

    Related Questions

    1.

    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
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    πŸŽ“ Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :atomic orbitals, electron spin, Pauli exclusion principle, chemical bonding

    2.

    According to Valence Bond Theory, the number of sigma (Οƒ\sigma) and pi (Ο€\pi) bonds in N2N_2 are:

    A

    1 Οƒ\sigma and 1 Ο€\pi

    B

    1 Οƒ\sigma and 2 Ο€\pi

    C

    2 Οƒ\sigma and 1 Ο€\pi

    D

    3 Οƒ\sigma and 0 Ο€\pi

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    πŸŽ“ Ncert Level:Understanding
    🎯Difficulty :Hard
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Valence Bond Theory, Sigma and Pi Bonds

    3.

    proton plays an important role in…bonding.

    A

    Electrovalent

    B

    Hydrogen

    C

    Covalent

    D

    Coordinate

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    πŸŽ“ Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Chemical bonding, Coordinate bonding, Proton

    4.

    A molecule AB4 has a see-saw shape. Considering Valence Bond Theory, what is the most likely hybridization of the central atom A and its likely outer electronic configuration?

    A

    sp3, ns2np2

    B

    sp3d, ns2np3

    C

    sp3d2, ns2np4

    D

    dsp3, ns2np3nd1

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :1.5 mins
    πŸ”„Ncert Concepts :Valence Bond Theory, VSEPR Theory, Hybridization, Molecular Geometry

    5.

    The overlapping of orbitals in a sigma bond is:

    A

    Sideways

    B

    Head-on

    C

    Partial

    D

    Non-existent

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚑ Time Required :0.5 mins
    πŸ”„Ncert Concepts :Valence Bond Theory, Sigma Bond

    6.

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

    A

    5

    B

    4

    C

    3

    D

    6

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚑ Time Required :0.5 mins
    πŸ”„Ncert Concepts :Valence Bond Theory, Hybridization, Hybrid Orbitals

    7.

    Which of the following statements is true regarding {[Mn(CN)6]}3βˆ’\{[Mn(CN)_6]\}^{3-}?

    A

    It is diamagnetic and inner orbital complex

    B

    It is diamagnetic and outer orbital complex

    C

    It is paramagnetic and inner orbital complex

    D

    It is paramagnetic and outer orbital complex

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    PYQ YEAR: 2017
    πŸŽ“ Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Coordination Compounds, Magnetism, Hybridisation

    8.

    According to VBT, the bond in H2H_2 is formed by the overlap of:

    A

    Two 1s orbitals

    B

    One 1s and one 2s orbital

    C

    Two 2p orbitals

    D

    One 2s and one 2p orbital

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚑ Time Required :0.5 mins
    πŸ”„Ncert Concepts :Valence Bond Theory, Hydrogen Molecule, Atomic Orbitals

    9.

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

    A

    10

    B

    11

    C

    12

    D

    13

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    PYQ YEAR: 2023
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Chemical Bonding, Aromatic Compounds, Heterocyclic Compounds

    10.

    Which type of overlapping results in the formation of a pi bond?

    A

    Axial overlapping

    B

    Lateral overlapping

    C

    Linear overlapping

    D

    None of the above

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Chemical Bonding and Molecular Structure
    🎯Topic:Valence Bond Theory
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Sigma Bond, Pi Bond, Overlapping of Atomic Orbitals

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