Question

Al(OH)3 + OH- → Al(OH)4- Identify whether this reaction can be classified as a Bronsted-Lowry and/or Lewis acid/base reaction. Group of answer choices Only Bronsted-Lowry Only Lewis Both Bronsted-Lowry and Lewis Neither

Answer 1

Answer : The correct option is, only Lewis.

Explanation :

According to the Bronsted Lowry conjugate acid-base theory, an acid is a substance which donates protons and a base is a substance which accepts protons.

According to the Lewis concept, an acid is a substance that accepts electron pairs and base is a substance which donates electron pairs.

As we are given the reaction:

$Al(OH)_3+OH^-\rightarrow Al(OH)_4^-$

$Al(OH)_3$ is a Lewis acid because it is an electron deficient species that means, it accepts electron pairs.

$OH^-$ is a Lewis base because it is an electron rich species that means, it donates electron pairs.

Hence, the correct option is, only Lewis.