Question

Which of the following species can act both as acid as well as a base?

• A. $2NO_{2(g)}$
• B. $N_{2}O_{4(g),}K_{P}/K_{c}$
• C. $2NO_{2(g)}N_{2}O_{4(g)}$
• D. $K_{p}/K_{c}$

Answer 1

Answer: (B)

$N_{2}O_{4(g),}K_{P}/K_{c}$

Answer 2

: $HSO_{4}^{-}H_{2}SO_{4}$ $$ {SO_{4}^{2 -}}$$

$HSO_{4}^{-}$ can accept or give a proton.