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Question: Answered & Verified by Expert
$\mathrm{N}_{2}$ and $\mathrm{O}_{2}$ are converted into mono anions, $\mathrm{N}_{2}^{-}$ and $\mathrm{O}_{2}^{-}$ respectively. Which of the following statements is wrong ?
ChemistryChemical Bonding and Molecular StructureBITSATBITSAT 2014
Options:
  • A $\operatorname{In} \mathrm{N}_{2}$, the $\mathrm{N}-\mathrm{N}$ bond weakens
  • B In $\mathrm{O}_{2}$, the $\mathrm{O}-\mathrm{O}$ bond order increases
  • C In $\mathrm{O}_{2},$ bond length decreases
  • D $\mathrm{N}_{2}^{-}$ becomes diamagnetic
Solution:
2208 Upvotes Verified Answer
The correct answer is: In $\mathrm{O}_{2}$, the $\mathrm{O}-\mathrm{O}$ bond order increases
We know that in $\mathrm{O}_{2}$ bond, the order is 2 and in $\mathrm{O}_{2}^{-}$ bond, the order is 1.5 . Therefore the wrong statements is (b).

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