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21 October, 11:58

What is the Lewis acid in the following reaction? NH3 + BI3 → I3BNH3

NH3

BI3

I3BNH3

none of these

+3
Answers (1)
  1. 21 October, 12:27
    0
    The correct answer is BI₃

    Lewis acid refers to a compound that could accept a pair of electrons, while Lewis base refers to a compound that could donate a pair of electrons.

    In the mentioned reaction,

    In NH₃, nitrogen exhibits a lone pair of electrons and is functioning as a Lewis base. In BI₃, the boron is deficient for an electron pair, thus in order to complete its octet it functions as a Lewis acid.
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