Which of the following strongest lewis acid : - Vidyadip

MCQ

Which of the following strongest lewis acid :

A
$\mathrm{BCl}_3$
B
$\mathrm{BF}_3$
✓
$\mathrm{BI}_3$
D
$\mathrm{BBr}_3$

✓

Answer

Correct option: C.

$\mathrm{BI}_3$

$\mathrm{BI}_3$ because backbonding is least effective between $5p-5p$ overlapping.

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