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Chemistry Question on Chemical bonding and molecular structure

Consider the ions/molecules O2+,O2,O2−,O22−O^{2+}, O_2, O_2^-, O_2^{2-}For increasing bond order the correct option is

A

O22−<O2−<O2<O22+O^{2-}_2 < O^{2-} < O_2 < O^{2+}_2

B

O2−<O22−<O2<O2+O^{2-} < O_2^{2-} < O_2 < O^{2+}

C

O2−<O22−<O2+<O2O^{2-} < O_2^{2-} < O_2^+ < O_2

D

O2−<O2+<O2−<O2O^{2-} < O_2^+ < O_2^- < O_2

Answer

O22−<O2−<O2<O22+O^{2-}_2 < O^{2-} < O_2 < O^{2+}_2

Explanation

Solution

SpeciesBond order
O2+O_2^+2.5
O2O_22
O2−O_2^− 1.5
O2−2O_2^{−2}1