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Nitrous Oxide

At room tempe...

Question

At room temperature ${N O}_{2}$ gas is paramagnetic, but on cooling below $0^{o} C$ it acquires diamagnetic nature.

If the given statement is true enter 1 else enter 0.

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Solution

In solid phase/liquid phase nitric oxide exist as $N_{2} O_{4}$ and not ${N O}_{2}$
because
O= =O
N-N
O= =O
but in gaseous phase it exist as ${N O}_{2}$ having single free electron, making it paramagnetic.

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