Question

$HF+H_3{O}^{+}\to H_2{F}^{+}+H_{2}O$
In the above reaction, Bronsted bases are:

• A. $H_3{O}^{+},H_{2}O$
• B. $HF,H_3{O}^{+}$
• C. $H_2{F}^{+},H_{2}O$
• D. $HF,H_{2}O$

Answer 1

The correct option is D $HF,H_{2}O$

Proton acceptors are Bronsted bases.
In the forward reaction, $HF$ accepts a proton. In the backward reaction, $H_{2}O$ accepts the proton.

So, $HF$ and $H_{2}O$ are Bronsted bases.

Option D is correct.