Which of the following statement is incorrect for nitric oxide `(NO)`?

Options

A. It does not dimerize
B. it is paramagnetic molecule
C. it is an acid anhydride
D. it is a neutral oxide

Answer

3

Explanation

`No` is a natural oxide and is not an acid anhydride. Nitrogen monoxide is one of the most curious simple molecules.
`NO` has `11` valency electrons (`5`from N and `6`from `O`). Since it is impossible for all of them to be paired ,NO is an odd electron molecules and the gas is paramagnetic.
Odd electron molecules are usually highly reactive and tend to dimerize . NO is unusally stable inspite of being an odd electron molecules. it does not dimerize in the gas phase. Only in the liquid and solid state it shows the tendecy to dimertize and loose units of the type shown below ,have been found to exist:

The solid No has a dipole moment of `0.15` Debye.