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Standard XII
Chemistry
Question

Which of the following has maximum bond energy?
  1. O+2
  2. O−2
  3. O2
  4. O2−2

A
O+2
B
O−2
C
O2
D
O2−2
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Solution
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Bond energy is inversely proportional to bond length.

In O+2 the bond order is highest, 2.5, therefore the bond length will be shortest.

Hence, the correct option is B.

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