Question

One of the following is a Bronsted acid but not a Bronsted base

• A. $H_2S$
• B. $H_2O$
• C. $HCO^-_3$
• D. $NH_3$

Answer 1

Answer: (A)

$H_2S$

Answer 2

It cannot act as proton acceptor, while all other can act as donor as well as acceptor of proton