Chemical Bonding - Result Question 76

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52. When $N _2$ goes to $N _2^{+}$, the $N-N$ bond distance ____ , and when $O _2$ goes to $O _2^{+}$ the $O-O$ bond distance ____

(1996, 1M)

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Answer:

Correct Answer: 52. increases, decreases

Solution:

  1. Bond order in $N _2$ is $3$ while same in $N _2^{+}$ is $2.5$ , hence bond distance increases as $N _2$ goes to $N _2^{+}$.

Bond order in $O _2$ is 2 while same in $O _2^{+}$ is $2.5$ , hence bond distance decreases as $O _2$ goes to $O _2^{+}$.