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The main factor of shorter B-F bonds in ...

The main factor of shorter `B-F` bonds in `BF_(3)` is :

A

ionic - covalent resonance in `BF_(3)`

B

large electronegativity of fluorine

C

`dpi-ppi` back bonding

D

`ppi-ppi` back bonding.

Text Solution

Verified by Experts

The correct Answer is:
D
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MODERN PUBLICATION-CHEMISTRY OF P - BLOCK ELEMENTS-Multiple Choice Questions (Level - II) (Comprehensive Qs)
  1. Which of the following chlorides is explosive?

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  2. Which of the following is very strongly acidic oxide?

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  3. The main factor of shorter B-F bonds in BF(3) is :

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  4. Which of the following statements is true about trisilylamine (A) is c...

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  5. N(2)O(3) exists pure only in the solid state at low temperature. Above...

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  6. Pyrophosphoric acid on heating to 600^(@)C gives :

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  7. Which of the following has -O-O- linkage ?

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  8. The oxidation state of nitrogen in peroxynitric acid is :

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  9. Which of the following is a paramagnetic molecules?

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  10. Solid PCl(5) exists as :

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  11. When thisoulphate is oxidised by iodine, which of the following is pro...

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  12. Which one of the following chlorides will not fume in air?

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  13. Iodine oxidises the S(2)O(3)^(2-) ion to :

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  14. Which of the following is the hardest compound of boron?

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  15. Nitrogen can be purified from the impurities of oxides of nitrogen and...

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  16. Phosphine prepared by the action of caustic soda on white phophorus is...

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  17. A gas that cannot be collected over water is :

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  18. Aluminium (III) chloride forms a dimer because :

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  19. Which element out of the following He, Ar, Kr and Xe forms least numbe...

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  20. The acid which forms two series of salts is :

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