Chemical Bonding And Molecular Structure Ques 28
28. The correct order of $N-O$ bond lengths in $NO$, $NO_2^{-}, NO_3{ }^{-}$and $N_2 O_4$ is
[1996]
(a) $N_2 O_4>NO_2^{-}>NO_3^{-}>NO$
(b) $NO>NO_3^{-}>N_2 O_4>NO_2^{-}$
(c) $NO_3^{-}>NO_2^{-}>N_2 O_4>NO$
(d) $NO>N_2 O_4>NO_2^{-}>NO_3^{-}$
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Answer:
Correct Answer: 28.(c)
Solution:
(c) The $N-O$ bond length decreases in the order
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