The internuclear distances in O \(-\) O bonds for \(\mathrm{O_2^+, O_2, O_2^-}\) and \(\mathrm{O_2^{2-}}\) respectively are :
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- 1.30 \(\mathrm{\AA}\), 1.49 \(\mathrm{\AA}\), 1.12 \(\mathrm{\AA}\), 1.21 \(\mathrm{\AA}\)
- 1.49 \(\mathrm{\AA}\), 1.21 \(\mathrm{\AA}\), 1.12 \(\mathrm{\AA}\), 1.30 \(\mathrm{\AA}\)
- 1.21 \(\mathrm{\AA}\), 1.12 \(\mathrm{\AA}\), 1.49 \(\mathrm{\AA}\), 1.30 \(\mathrm{\AA}\)
- 1.12 \(\mathrm{\AA}\), 1.21 \(\mathrm{\AA}\), 1.30 \(\mathrm{\AA}\), 1.49 \(\mathrm{\AA}\)
The Correct Option is D
Solution and Explanation
Bond length decreases as bond order increases, so the order of length is \(\mathrm{O_2^+} \lt \mathrm{O_2} \lt \mathrm{O_2^-} \lt \mathrm{O_2^{2-}}\).
Known values: 1.12, 1.21, 1.30, 1.49 \(\mathrm{\AA}\) in that order.
Answer: (4) 1.12 \(\mathrm{\AA}\), 1.21 \(\mathrm{\AA}\), 1.30 \(\mathrm{\AA}\), 1.49 \(\mathrm{\AA}\)
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