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In HCHO, there are X no-bonding electro...

In ` HCHO,` there are `X` no-bonding electron pairs Y sigama -bonds and Z pi-bonds , ` X , Y` and Z are :

A

` 1,1, 3`

B

` 2,3 ,1`

C

` 1,2,3`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
`HCHO ` is represented as
`underset ( :O: )underset(||)(H-C-H)`.
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P BAHADUR-CHEMICAL BONDING-Exercise2A
  1. When temperature is lowered NO2 dimerises . It is accompanised by :

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

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

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

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  5. Hypervalent compound is :

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

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

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

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  9. A molecule which cannot exist theoretcally is :

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  10. Which are true statements among the following ?

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

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  12. The solublity of KCl is relatively more in :

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  13. Which of the following possess lowest bond energy ?

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

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  15. The pair of species having identical shape is :

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

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

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  18. Structrue of ICO2^- is :

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  19. The most suitable method of separation of a mixture of ortho and para ...

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  20. In the formation of N2^+ the electron is lost form a :

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