Which one of the following properties is not shown by NO?
A.
It is diamagnetic in gaseous state
B.
It is neutral oxide
C.
It combines with oxygen to form nitrogen dioxide
D.
It’s bond order is 2.5
Answer :
It is diamagnetic in gaseous state
Solution :
Nitric oxide is paramagnetic in the gaseous state because of the presence of one unpaired electron in its outermost shell.
The electronic configuration of $$NO$$ is
$$\sigma _{1s}^2\sigma _{1s}^{ * 2}\sigma _{2s}^2\sigma _{2s}^{ * 2}\sigma _{2{p_z}}^2\pi _{2{p_x}}^2 = \pi _{2{p_y}}^2\pi _{2{p_x}}^{ * 1}$$
Releted MCQ Question on Inorganic Chemistry >> P - Block Elements
Releted Question 1
The reddish brown coloured gas formed when nitric oxide is oxidised by air is