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The main factor responsible for waek aci...

The main factor responsible for waek acidic nature of `B-F` bonds in `BF_(3)` is

A

large electronegativity of fluorine.

B

three centred two electron bonds in `BF_(3)`

C

`p pi-d pi` back bonding

D

`p pi-p pi` back bonding

Text Solution

Verified by Experts

The correct Answer is:
D
It is `p pi-p pi` back bonding involving B and F. The smaller atoms show more back bonding.
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DISHA PUBLICATION-The p-Block Elements (Group 13 and Group 14)-Exercise-2: Concept Applicator
  1. Which of the following statements about H(3)BO(3) is not correct ?

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  2. Which one of the following is correct statement ?

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  3. The main factor responsible for waek acidic nature of B-F bonds in BF(...

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  4. An aqueous solution of FeSO(4),Al(2)(SO(4))(3) and chrome alum is heat...

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  5. Which reaction cannot give anhydrous AlCl(3):

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  6. Which of the following is true ?

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  7. The stability of +1 oxidation state increases in the sequence :

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  8. Boron does not form B^(3+) ions because

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  9. The number of isomers possible for disubstituted borazine, B(3)N(3)H(4...

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  10. How can the following reaction be made to proceed in forward direction...

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  11. When excess of NaOH solution is added in potash alum the product is.

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  12. The structure of boron nitride resembles that of

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  13. To a piece of charcoal, sulphuric acid is added. Then:

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  14. Carbon and silicon belong to group IV. The maximum coordination number...

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  15. Soldiers of Napolean army while at alps during freezing winter suffere...

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  16. Which one of the following allotropic forms of carbon is isomorphous w...

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  17. The structure and hybridization of Si(CH(3))(4) is

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  18. A solid element (symbol Y) conducts electricity and forms two chloride...

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  19. On addition of excess of sodium hydroxide solution to stannous chlorid...

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  20. Name the gas that can readily decolourise acidified KMnO(4) solution:

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