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Question

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

A
NO, N2O
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B
NO2 , N2O
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C
NO ,NO2
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D
N2O , NO , NO2
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Solution

The correct option is C NO ,NO2

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.

N2O - 5×2+6=16

NO2- 5+2×6=17 it shows odd valence electron so it is paramagnetic.

NO - 5+6=11

Therefore, NO,NO2 both are paramagnetic in nature.

Hence, option(c) is the correct answer.


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