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Which of the following properties is not shown by NO ?

Option: 1

It is diamagnetic is gaseous state


Option: 2

It is a neutral oxide


Option: 3

It combines with oxygen to form nitrogen dioxide


Option: 4

It's bond order is 2.5


Answers (1)

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As we have learned

Magnetic behaviour of molecule -

If  all the molecular orbitals in a molecule are doubly occupied, the substance is diamagnetic

- wherein

However if one or more molecular orbital are singly occupied it is paramagnetic e.g. O2

 

 NO in gaseous state is paramagnetic due to presence of unpaired electrons in its \pi ^* - orbital

 

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