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InterviewSolution
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Consider the following four species and answer the below given questions.O2-, O2, O2+,O22-i. What is the bond order of O2+ ?ii. Which species is least stable? |
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Answer» i. Electronic configuration of O2+ can be given as : (σ1s)2 (σ*1s)2 (σ2s)2 (σ*2s)2 (σ2pz)2 (π2px)2 (π2py)2 (π*2px)1 (π*2py)0 ∴ Bond order = \(\frac{1}{2}\) (10 – 5) = 2.5 ii. Stability of the molecule or species ∝ Bond order Bond order decreases as : O2+ > O2 > O2- > \(O_2^{2-}\) ∴ Stability decreases as : O2+ > O2 > O2- > \(O_2^{2-}\) Hence, Least stable species is \(O_2^{2-}\). |
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