The dimerisation of NO_2 is accompanied with | vedclass

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(B) $NO_2$ is an odd electron molecule containing $17$ valence electrons,which makes it paramagnetic due to the presence of an unpaired electron.Upon

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$A$ decrease in paramagnetism

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(B) $NO_2$ is an odd electron molecule containing $17$ valence electrons,which makes it paramagnetic due to the presence of an unpaired electron.Upon dimerisation,two $NO_2$ molecules combine to form $N_2O_4$ $(2NO_2 \rightleftharpoons N_2O_4)$.In $N_2O_4$,all electrons are paired,making the molecule diamagnetic.Therefore,the process of dimerisation results in a decrease in paramagnetism.

The dimerisation of $NO_2$ is accompanied with

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