Q 1118767609.     `NO_2` gas is paramagnetic at room temperature but loses its paramagnetism on cooling below `0°C`. When it is reheated, the behavior is reversed. This is attributed to

A

none of these

B

Greater resonance stabilisation of `NO_2` at low temperature

C

Reversible chemical change of `NO_2` into `N_2O_4` at low temperature

D

The change in electronic arrangement without the change of spatial arrangement of various atoms in ` NO_2`

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