Question

Identify Bronsted-Lowry acids in the reaction given.
$\underset{\left(A\right)}{\left[Al\right(H_{2}O{)}_6{]}^{3+}}+\underset{\left(B\right)}{HC{O}_3^{-}}\rightleftharpoons \underset{\left(C\right)}{\left[Al\right(H_{2}O{)}_5\left(O{H}^{-}\right){]}^{2+}}+\underset{\left(D\right)}{H_{2}C{O}_3}$
The correct answer is:

• A. A, C
• B. B, D
• C. A, D
• D. B, C

Answer 1

The correct option is C A, D

Bronsted acids are proton donors and Bronsted bases are proton acceptors.

For the forward reaction $\left[Al\right(H_{2}O{)}_6{]}^{3+}$ is the Bronsted acid and $HC{O}_3^{-}$ is the Bronsted base.
For the reverse reaction, $H_{2}C{O}_3$ is the Bronsted acid and $\left[Al\right(H_{2}O{)}_5\left(O{H}^{-}\right){]}^{2+}$ is the Bronsted base.