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The tendency of BF(3), BCl(3) and BBr(3)...

The tendency of `BF_(3), BCl_(3)` and `BBr_(3)` behave as Lewis acid decreases in the sequnece

A

`BF_(3) lt BCl_(3) gt BBr_(3)`

B

`BCl_(3) gt BF_(3) gt BBr_(3)`

C

`BBr_(3) gt BCl_(3)gt BF_(3)`

D

`BBr_(3) gt BF_(3) gt BCl_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
As the extent of `ppi-ppi` back bonding decreases with increase in the size of the halogen, electron-deficiency increases , i.e., option (c ) is correct.
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PRADEEP-SOME p-BLOCK ELEMENTS-Competition Focus (JEE( Main and Advanced)/Medical Entrance) (1. Multiple Choice Questions) I. Group 13 Elements
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  2. AlF(3) soluble in HF only in presence of KF. It is due to the formatio...

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  3. The tendency of BF(3), BCl(3) and BBr(3) behave as Lewis acid decrease...

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  4. Which one of the following has highest Lewis acid strength ?

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  5. the correct statement is

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  6. Which of the following are Lewis acids?

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  7. Which of the following is a Lewis acid ?

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  8. The bond dissociation energy of B-F in BF(3) is "646 kJ mol"^(-1) wher...

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  9. The correct formula of borax is

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  10. In borax the number of B-O-B links and B-OH bond present are, respecti...

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  11. 2B(OH)(3) + 2NaOHhArr NaBO(2) + Na[B(OH)(4)]+2H(2)O How can this re...

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  12. Boric acid is an acid because its molecule

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  13. On the addition of mineral acid to an aqueous solution of borax, the c...

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  14. The type of hybridization of boron in diborane is

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  15. The structure of diborane (B(2)H(6)) contains :

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  16. In diborane, the number of electrons that account for bonding in the...

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  17. Three centred two electron bond is present in

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  18. Reaction of diborane with ammonia gives initially

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

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  20. The prdouct/s formed when diborane is hydrolysed is/are

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