Home
Class 12
CHEMISTRY
BX(3)+NH(3) overset(B.T.) to BX(3) *NH(3...

`BX_(3)+NH_(3) overset(B.T.) to BX_(3) *NH_(3)`+Heat of adduct formation `(DeltaH)`
The numberical value of `DeltaH` is found to be maximum for:

A

`BF_(3)`

B

`BC l_(3)`

C

`B Br_(3)`

D

`BI_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Lewis acidic strength: `BF_(3) lt BCl_(3) lt B B r_(3) lt BI_(3)`
As `BI_(3)` is strongest lewis acid among all boron halides therefore, heat of adduct formation will be maximum numerically, for `BI_(3)`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • p-BLOCK ELEMENTS

    VK JAISWAL|Exercise LEVEL 3 (PASSAGE TYPE)|20 Videos

  • p-BLOCK ELEMENTS

    VK JAISWAL|Exercise ONE OR MORE ANSWERS IS/ARE CORRECT|97 Videos

  • p-BLOCK ELEMENTS

    VK JAISWAL|Exercise SUBJECTIVE PROBLEMS|36 Videos

  • METALLURGY

    VK JAISWAL|Exercise ASSERTION-REASON TYPE QUESTIONS|30 Videos

  • PERIODIC PROPERTIES

    VK JAISWAL|Exercise ASSERTION-REASON TYPE QUESTIONS|35 Videos

Similar Questions

Explore conceptually related problems

NH_(4)NO_(3) overset("Heat") to

In B_(2)H_(6) , there is no B-B bond. The B_(2)H_(6).2NH_(3) adduct on heating gives borazine.

Knowledge Check

  • BX_(3)+NH_(3) overset(RT) rarr BX_(3).NH_(3)+ Heat of adduct formation (Delta H) The numerical value of Delta H is found to be maximum for :

    A
    `BF_(3)`
    B
    `BCl_(3)`
    C
    `BBr_(3)`
    D
    `BI_(3)`

  • CuSO_(4) dissolves in NH_(3) due to formation of

    A
    `Cu(OH)_(2)`
    B
    `[Cu(NH_(3))_(4)]SO_(4)`
    C
    `[Cu(NH_(3))_(4)(OH)_(2)]`
    D
    CuO.

  • NH_(3)and BF_(3) from adduct readily because they from

    A
    Ionic bond
    B
    Covalent bond
    C
    Co-ordinate bond
    D
    Hydrogen bond

    • Similar Questions

    Explore conceptually related problems

    NH_3 and BF_3 form adduct readily because they form

    Given, NH_(3)(g) + 3Cl_(2)(g) NCl_(3)(g) + 3HCl, -DeltaH_(1) N_(2)(g) + Cl_(2)(g) to 2NH_(3)(g),-DeltaH_(2) H_(2)(g) + Cl_(2)(g) to 2HCl_(g),-DeltaH_(3) The heat of formation of NCl_(3)(g) in the terms of DeltaH_(1), DeltaH_(2) and DeltaH_(3) is

    NH_(3)(g) + 3Cl_(2)(g) rarr NCl_(3)(g) + 3HCl(g), " "DeltaH_(1) N_(2)(g) + 3H_(2)(g) rarr 2NH_(3)(g), " "Delta H_(2) H_(2)(g) + Cl_(2)(g) rarr 2HCl(g), " "Delta H_(3) The heat of formation of NCl3(g) in the terms of DeltaH_(1), DeltaH_2 and DeltaH_(3) is :

    CH_(3)COOHoverset(NH_(3))(to)overset(Delta)(to) ? The product of the reaction is isomeric with

    NH_(3)(g) + 3Cl_(2)(g) rarr NCl_(3)(g) + 3HCl(g), " "DeltaH_(1) N_(2)(g)+3H_(2)(g)rarr 2NH_(3)(g), " "DeltaH_(2) H_(2)(g)+ Cl_(2)(g) rarr 2HCl(g) , " " DeltaH_(3) The heat of formation of NCl_(3) in the terms of DeltaH_(1), DeltaH_(2) "and" DeltaH_(3) is

    Home
    Profile