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Nitrogen

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Question

Give reasons for the following phenomenon:
$N O_{2}$ dimerises to form $N_{2} O_{4}$ .

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Solution

$N O_{2}$ shows dimerisation because $N O_{2}$ is an odd electron molecule and therefore it gets dimerised to stable $N_{2} O_{4}$ .

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Similar questions

Q. In a closed container,

N O_{2}

was taken which dimerises to give

N_{2} O_{4}

. After some time, mole fraction of

N_{2} O_{4}

was found to be

\frac{2}{3}

in the container. Calculate the

%

dimerisation of

N O_{2}

?

Q. In a closed container,

N O_{2}

was taken which dimerises to give

N_{2} O_{4}

. After some time, mole fraction of

N_{2} O_{4}

was found to be

\frac{2}{3}

in the container, then calculate % dimerisation of

N O_{2}

. Give your answer dividing

10

.

Q. Of the following statements which are true for

N O_{2}

?

i)

Nitrogen dioxide brown liquid turns pale on cooling and becomes colourless solid
ii)

N O_{2}

undergoes dimerisation to form

N_{2} O_{4}

N O_{2}

is paramagnetic,

N_{2} O_{4}

2 N O_{2} ⇌ N_{2} O_{4}

The dimerisation of

N O_{2}

is accompainied with :

N O_{2}

C O_{2}

both odd electron molecules and hence dimerizes.

Reason :- On dimerisation,

N O_{2}

is converted to stable

N_{2} O_{4}

molecule with even number of electrons.

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