A) \[1.30\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.49\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.12\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.21\overset{\text{o}}{\mathop{\text{A}}}\,\]
B) \[1.49\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.21\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.12\overset{\text{o}}{\mathop{\text{A}}}\,,\,1.30\overset{\text{o}}{\mathop{\text{A}}}\,\]
C) \[1.21\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.12\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.49\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.30\overset{\text{o}}{\mathop{\text{A}}}\,\]
D) \[1.12\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.21\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.30\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.49\overset{\text{o}}{\mathop{\text{A}}}\,\]
Correct Answer: D
Solution :
[d] The bond length follows the order \[O_{2}^{+}<{{O}_{2}}<O_{_{2}}^{-}<O_{2}^{2-}~\] According to this the possible values are \[1.12\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.21\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.30\overset{\text{o}}{\mathop{\text{A}}}\,,\text{ }1.49\overset{\text{o}}{\mathop{\text{A}}}\,\]
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