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When temperature is lowered NO2 dimerise...

When temperature is lowered `NO_2` dimerises . It is accompanised by :

A

an increase in pressure

B

darkening in colour

C

decrease in paramangetism

D

increase in paramagetism

Text Solution

Verified by Experts

The correct Answer is:
C
`N_2O_4` has no unpaired electron and thus diamangentic .
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P BAHADUR-CHEMICAL BONDING-Exercise2A
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  2. Which shows a changes in the type of hybridisation when :

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  3. When temperature is lowered NO2 dimerises . It is accompanised by :

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  4. The dipole moment of NF3 is very much less compatred to that of NH3 be...

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  5. In HCHO, there are X no-bonding electron pairs Y sigama -bonds and Z ...

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  6. For compounds , A : Tetracuanoethern B : Carbon dioxide C: Ben...

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  7. Hypervalent compound is :

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  8. Which set contains par of elements that do not belong to same froup bu...

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  9. An element of p-block in which last electron enters into s-orbital of ...

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  10. Covelant radius of Liis 123 pm .The crystal radius of Li will be:

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  11. A molecule which cannot exist theoretcally is :

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  12. Which are true statements among the following ?

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  13. The structure of IF4 can be best desribed by :

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  14. The solublity of KCl is relatively more in :

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  15. Which of the following possess lowest bond energy ?

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  16. Molecular size of ICI and Br2 is nearly same but b.pt. of ICI is abou...

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  17. The pair of species having identical shape is :

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  18. The molecule having three fold axid of symmetry is :

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  19. Which of the following phenomenon will occure when tow atoms of an ele...

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  20. Structrue of ICO2^- is :

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