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Which of the following has the minimum h...

Which of the following has the minimum heat of dissociation?

A

`[(CH_(3))_(3)NtoBF_(3)]`

B

`[(CH_(3))_(3)NtoB(CH_(3))F_(2)]`

C

`[(CH_(3))_(3)NtoB(CH_(3))_(2)F]`

D

`[(CH_(3))_(3)NtoBF_(3)]`

Text Solution

Verified by Experts

The correct Answer is:
D
The tendency of trimethyl boron to act as Lewis acid decreases due to `+IE` of `CH_(3)` group and thus, coordination becomes weaker.
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Knowledge Check

  • Which of the following has the minimum mass?

    A
    `6.02xx10^(22)H_(2)` molecules
    B
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    C
    `0.1` mol of `NH_(3)`
    D
    `0.1g` atom of carbon

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    B
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    C
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    D
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  • Which of the following has minimum pH?

    A
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    B
    Gastric juice
    C
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    D
    Pancreatic juice

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