The distribution of electrons among molecular orbitals is called the electronic configuration of the molecule which provides us the following very important informations about the molecule. (A)Stability of molecule : The molecule is stable if number of bonding moleculer orbital electrons `(N_b)` is greater than the number of antibonding molecular orbital electrons `(N_a)`. (B) Bond order : Bond order `=1/2(N_b-N_a)` A positive bond order means a stable molecule while a negative or zero bond order means an unstable molecule. ( C)Nature of the bond : Bond order 1,2 and 3 corresponds to single , double and triple bonds respectively. (D)Bond length: Bond length decreases as bond order increases. (E)Magnetic nature: Molecular orbitals in a molecule are doubly occupied , the substance is diamagnetic and if one or more molecular orbitals are singly occupied, it is paramagnetic. The following molecule/species have been arranged in the order of their increasing bond orders.Identify the correct order : (I)`O_2`, (II)`O_2^(-)`, (III)`O_2^(2-)`, (IV)`O_2^(+)`A. IIIltIIltIltIVB. IVltIIIltIIltIC. IIIltIIltIVltID. IIltIIIltIltIV

The distribution of electrons among molecular orbitals is called the e

1.	The distribution of electrons among molecular orbitals is called the electronic configuration of the molecule which provides us the following very important informations about the molecule. (A)Stability of molecule : The molecule is stable if number of bonding moleculer orbital electrons `(N_b)` is greater than the number of antibonding molecular orbital electrons `(N_a)`. (B) Bond order : Bond order `=1/2(N_b-N_a)` A positive bond order means a stable molecule while a negative or zero bond order means an unstable molecule. ( C)Nature of the bond : Bond order 1,2 and 3 corresponds to single , double and triple bonds respectively. (D)Bond length: Bond length decreases as bond order increases. (E)Magnetic nature: Molecular orbitals in a molecule are doubly occupied , the substance is diamagnetic and if one or more molecular orbitals are singly occupied, it is paramagnetic. The following molecule/species have been arranged in the order of their increasing bond orders.Identify the correct order : (I)`O_2`, (II)`O_2^(-)`, (III)`O_2^(2-)`, (IV)`O_2^(+)`A. IIIltIIltIltIVB. IVltIIIltIIltIC. IIIltIIltIVltID. IIltIIIltIltIV
Answer» Correct Answer - A `{:(" " ,O_2,O_2^(-),O_2^(2-),O_2^+),("Bond Order",2,1.5,1,2.5):}`

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