Question

Which of the three is the weakest Lewis acid?

Answer 1

Explanation:

The weakest Lewis base is Cl⊝, because it has octet rule. Cl⊝ won't donate electrons easily.

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Answer 2

$\huge\mathfrak\pink{⭐Answer⭐:-}$

$\huge\bf\pink{✨incl3✨}$

$\huge\mathfrak\pink{⭐Explanation⭐:-}$

The acidic character in a p-block element decreases down the group.

InCl

3

is the weakest lewis acid because the stability of forming +3 oxidation state decreases down the group.

Stability of forming +3 oxidation state- AlCl

3

>GaCl

3

>InCl

3

(due to inert pair effect)