Question

Which one of the following is the correct statement?

Options

• \[\ce{HCO^{-}3}\] is the conjugate base of \[\ce{CO^{2-}3}\].

• \[\ce{NH^{-}2}\] is the conjugate acid of NH₃.

• H₂SO₄ is the conjugate acid of \[\ce{HSO^{-}4}\]

• NH₃ is the conjugate base of \[\ce{NH^{-}2}\]

Answer 1

H₂SO₄ is the conjugate acid of \[\ce{HSO^{-}4}\]

Explanation:

\[\ce{HSO^{-}4}\] accepts a proton to form H₂SO₄. Thus, H₂SO₄ is the conjugate acid of \[\ce{HSO^{-}4}\].

\[\ce{\underset{base}{HSO^{-}4} ->[+H+] \underset{\underset{of HSO^{-}4}{conjugate acid}}{H2SO4}}\]