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Which one of the following properties is not shown by NO?

1. It is diamagnetic in gaseous state
2. It is neutral oxide
3. It combines with oxygen to form nitrogen dioxide
4. Its bond order is 2.5

Correct answer: It is diamagnetic in gaseous state

Solution

Nitric oxide (NO) is actually paramagnetic due to the presence of an unpaired electron, which contradicts the property of being diamagnetic. Therefore, this option is incorrect.

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