Consider the following statement.I. When $$O2$$ is converted into $$O22+$$ bond order decreases.II. $$O2$$ molecule is paramagnetic because it contains two unpaired electrons in π$$*2px$$ and π$$*2py$$ molecular orbitals.III. The bond length in NO is greater than $$NO+$$.Choose the correct option.

Question

Consider the following statement.I. When $$O2$$ is converted into $$O22+$$ bond order decreases.II. $$O2$$ molecule is paramagnetic because it contains two unpaired electrons in π$$*2px$$ and π$$*2py$$ molecular orbitals.III. The bond length in NO is greater than $$NO+$$.Choose the correct option.

Infinity Learn · Accepted Answer

Statement II and III are correct.The molecular orbital configuration of $$O2$$  molecule is as follows:   σ   $$1s2$$,   σ   $$*1s2$$,   σ   $$2s2$$,    σ   $$*2s2$$,   σ   $$2p2z$$,π$$2px2$$    $$=$$π$$2py2$$      ,π$$*2px1=$$π$$*2py1There$$ are $$10$$ bonding and $$6$$ nonbonding electrons in the orbitals according to the molecular orbital configuration.Therefore,  Bond order $$=12$$[$$Bonding-antibonding$$]$$=$$ $$12$$[$$10$$−$$6$$]$$=12(4)=2Thus$$, the bond order $$O2$$ is $$2$$. The molecular orbital configuration of $$O2+2$$ is σ$$1s2$$,σ$$*1s2$$,σ$$2s2$$,σ$$*2s2$$,σ$$2pz2$$,π$$2px2=$$π$$2py2There$$ are $$10$$ bonding  and $$4$$ nonbonding electrons in the orbitals according to the molecular orbital configuration.Therefore, Bond order $$=12$$[$$Bonding-antibonding$$]$$=12$$[$$10$$−$$4$$]$$=3$$.Hence statement I is incorrect.

Consider the following statement.I. When O2 is converted into O22+ bond order decreases.II. O2 molecule is paramagnetic because it contains two unpaired electrons in π2px and π2py molecular orbitals.III. The bond length in NO is greater than NO+.Choose the correct option.

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Consider the following statement.I. When O2 is converted into O22+ bond order decreases.II. O2 molecule is paramagnetic because it contains two unpaired electrons in π*2px and π*2py molecular orbitals.III. The bond length in NO is greater than NO+.Choose the correct option.

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Consider the following statement.I. When O2 is converted into O22+ bond order decreases.II. O2 molecule is paramagnetic because it contains two unpaired electrons in π2px and π2py molecular orbitals.III. The bond length in NO is greater than NO+.Choose the correct option.