Coordination Compounds

Question

# Which of the following properties are not shown by NO? It is diamagnetic in gaseous state It is a neutral oxide It combines with oxygen to form nitrogen dioxide Its bond order 2.5

A.

It is diamagnetic in gaseous state

D.

Its bond order 2.5

NO is paramagnetic in the gaseous state because, in a gaseous state, It has one unpaired electron.
Total number of electron present = 7+8 = 15e-
Hence, there must be the presence of unpaired electron in a gaseous state while in a liquid state, it dimerises due to the unpaired electron.