Question

Which set of oxide of nitrogen is paramagnetic in monomeric state?

• A. NO, $N_{2}O$
• B. ${NO}_2$ , $N_{2}O$
• C. NO ,$N{O}_2$
• D. $N_{2}O$ , NO , ${NO}_2$

Answer 1

The correct option is C NO ,$N{O}_2$

Paramagnetic - An element has the number of odd valence electrons or unpaired electrons.

Valence electron of nitrogen is $5$ and oxygen is $6$.

$NO$ total valence electron $=5+6=11$ it shows odd valence electron so it is paramagnetic.

$N_{2}O$ - $5\times 2+6=16$

$N{O}_2$- $5+2\times 6=17$ it shows odd valence electron so it is paramagnetic.

$NO$ - $5+6=11$

Therefore, $NO,N{O}_2$ both are paramagnetic in nature.

Hence, option(c) is the correct answer.