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  4. Among the following, which is the correct order of decreasing N-O bond length: NO2+, NO2-, NO3-

Q. Among the following, which is the correct order of decreasing $N-O$ bond length: $NO_{2}^{+}, \, NO_{2}^{-}, \, NO_{3}^{-}$

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Solution:

Higher the bond order stronger the bond will be , and shorter the bond length.
Bond order $\alpha \frac{1}{Bond \, length}$
$ \, & NO_{2}^{+} & NO_{2}^{-} \\ Bond \, order & 2 & 1.5NO_{3}^{-} \\ 1.33$

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