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JEE Main levelOne or more correct optionsDifficulty 2 of 3pn176

Which of the following statements about oxides of nitrogen is/are correct?

A $NO X_{2}$ is paramagnetic because it has an odd number of electrons.
B $N X_{2} O$ is a linear molecule.
C $N X_{2} O X_{4}$ is diamagnetic.
D $N X_{2} O X_{3}$ is the anhydride of nitric acid.

Answer: A, B, C

NO X_{2}

has 23 valence electrons and an unpaired electron; its dimer

N X_{2} O X_{4}

has all electrons paired.

N X_{2} O

is linear (N-N-O).

N X_{2} O X_{3}

is the anhydride of

HNO X_{2}

, while

N X_{2} O X_{5}

is that of

HNO X_{3}

.

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