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Molecular orbital (MOT) the atoms in a m...

Molecular orbital (MOT) the atoms in a molecule are supposed to loose their individual control over the electrons . The nuclei of the bonded atoms are considered to be present at equilibrium in inter-nuclear positions . The orbitals where the probability of finding electrons is maximum are multicentred orbitals called molecular orbitals extending over 2 or more nuclei when a pair of atomic orbitals combine and give rise to a pair of molecular MO's in internuclear region but decreased for antibonding MO's . Shielding of the nuclei by-increased electron density in bonding MO's reduces inter nuclear repulsion & thus stabilizes the molecule whereas lower electron density in antibonding MO's increases the repulsion and destabilises the system .

Which of the following species have identical value of bond order ?

A

`F_(2)` and Ne

B

`C_(2)` and `N_(2)`

C

`N_(2)^(+)` and `O_(2)^(+)`

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
C
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Molecular orbital (MOT) the atoms in a molecule are supposed to loose their individual control over the electrons . The nuclei of the bonded atoms are considered to be present at equilibrium in inter-nuclear positions . The orbitals where the probability of finding electrons is maximum are called molecular orbitals extending over 2 or more nuclei when a pair of atomic orbitals combine and give rise to a pair of molecular MO's in internuclear region but decreased for antibonding MO's . Shielding of the nuclei by-increased electron density in bonding MO's reduces inter nuclear repulsion & thus stabilizes the molecule whereas lower electron density in antibonding MO's increases the repulsion and destabilises the system . Which of the following hetero-diatomic molecular ion is paramagnetic ?

Molecular orbital (MOT) the atoms in a molecule are supposed to loose their individual control over the electrons . The nuclei of the bonded atoms are considered to be present at equilibrium in inter-nuclear positions . The orbitals where the probability of finding electrons is maximum are called molecular orbitals extending over 2 or more nuclei when a pair of atomic orbitals combine and give rise to a pair of molecular MO's in internuclear region but decreased for antibonding MO's . Shielding of the nuclei by-increased electron density in bonding MO's reduces inter nuclear repulsion & thus stabilizes the molecule whereas lower electron density in antibonding MO's increases the repulsion and destabilises the system . Which of the following is the correct order of bond strength of given species ?

Knowledge Check

  • 2s and 2p- atomic orbitals combine to give how many molecular orbitals ?

    A
    2
    B
    4
    C
    8
    D
    6
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