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The decreasing trend of acidic nature of...

The decreasing trend of acidic nature of trihalides of boron is:

A

`BF_(3)gtBCI_(3)gtBBr_(3)gtBI_(3)`

B

`BI_(3)gtBBr_(3)gtBCI_(3)gtBF_(3)`

C

`BBr_(3)gtBCI_(3)gtBF_(3)gtBI_(3)`

D

`BCI_(3)gtBI_(3)gtBF_(3)gtBBr_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
The trend is based on back bonding concept.
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The unexpected order of acidic strength of the trihalides of boron can best be explained by.

Asseration: The halogens develop +ve charge on N -atom and thus more +ve charge is devloped in NF_(3) amd therefore thendency to loose electron pair decreases. Reason: The basic nature of trihalides of nitrogen decreases from NF_(3) to NI_(3) .

The order of acidic strenght boron trihalides is:

Give hydrolysis product of trihalides of boron family.

The correct order of Lewis acidic strength of boron trihalides :

P BAHADUR-IONIC EQUILIBRIUM-Exercise3A
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  2. The anhydride of acid H(3)PO(4) and HPO(3) are:

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  3. The decreasing trend of acidic nature of trihalides of boron is:

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  4. The mixed salt among the following is:

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  5. pH of water is 7.0 at 25^(@)C. If water is heated to 70^(@)C, the:

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  6. When HCI gas is passed through a saturated solution of common salt, pu...

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  7. The inerferring radicals interfere in the test of usal inorganic analy...

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  8. Given, HF+H(2)Ooverset(K(a))rarrH(3)O^(+)+F^(-) F^(-)+H(2)Ooverset(K...

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  9. Isoelectric point is defined as the pH at which:

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  10. Which may be added to one litre of water to act a buffer?

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  11. The pH of an acidic buffer mixture is:

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  12. The principal buffer present in human blood is

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  15. The reverse procees of neutralisation is:

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  18. Which of the following is most soluble in water ?

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