\(\mathrm{Acid}_{1}+\mathrm{Base}_{2} \rightleftharpoons \mathrm{Acid}_{2}+\mathrm{Base}_{1}\) \(\mathrm{HPO}_{3}^{2-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{PO}_{3}^{2-}\) \(\mathrm{H}_{2} \mathrm{PO}_{4}^{-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{HPO}_{4}^{2-}\) \(\mathrm{H}_{3} \mathrm{PO}_{4}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{H}_{2} \mathrm{PO}_{4}^{-}\) Therefore, pair paid given in option (4) is not a conjugate acid pair as one species is not formed from the other by donation of proton.
CHXI07:EQUILIBRIUM
314423
Which of the following has no conjugate base?
1 Oxide ion
2 Hydroxide ion
3 Hydro peroxide ion
4 Hydrogen sulphate ion
Explanation:
Every protonic acid has conjugate base. Oxide \(\left(\mathrm{O}^{-2}\right)\) ion has no protons, so it has no conjugate base.
\(\mathrm{Acid}_{1}+\mathrm{Base}_{2} \rightleftharpoons \mathrm{Acid}_{2}+\mathrm{Base}_{1}\) \(\mathrm{HPO}_{3}^{2-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{PO}_{3}^{2-}\) \(\mathrm{H}_{2} \mathrm{PO}_{4}^{-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{HPO}_{4}^{2-}\) \(\mathrm{H}_{3} \mathrm{PO}_{4}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{H}_{2} \mathrm{PO}_{4}^{-}\) Therefore, pair paid given in option (4) is not a conjugate acid pair as one species is not formed from the other by donation of proton.
CHXI07:EQUILIBRIUM
314423
Which of the following has no conjugate base?
1 Oxide ion
2 Hydroxide ion
3 Hydro peroxide ion
4 Hydrogen sulphate ion
Explanation:
Every protonic acid has conjugate base. Oxide \(\left(\mathrm{O}^{-2}\right)\) ion has no protons, so it has no conjugate base.
\(\mathrm{Acid}_{1}+\mathrm{Base}_{2} \rightleftharpoons \mathrm{Acid}_{2}+\mathrm{Base}_{1}\) \(\mathrm{HPO}_{3}^{2-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{PO}_{3}^{2-}\) \(\mathrm{H}_{2} \mathrm{PO}_{4}^{-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{HPO}_{4}^{2-}\) \(\mathrm{H}_{3} \mathrm{PO}_{4}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{H}_{2} \mathrm{PO}_{4}^{-}\) Therefore, pair paid given in option (4) is not a conjugate acid pair as one species is not formed from the other by donation of proton.
CHXI07:EQUILIBRIUM
314423
Which of the following has no conjugate base?
1 Oxide ion
2 Hydroxide ion
3 Hydro peroxide ion
4 Hydrogen sulphate ion
Explanation:
Every protonic acid has conjugate base. Oxide \(\left(\mathrm{O}^{-2}\right)\) ion has no protons, so it has no conjugate base.
\(\mathrm{Acid}_{1}+\mathrm{Base}_{2} \rightleftharpoons \mathrm{Acid}_{2}+\mathrm{Base}_{1}\) \(\mathrm{HPO}_{3}^{2-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{PO}_{3}^{2-}\) \(\mathrm{H}_{2} \mathrm{PO}_{4}^{-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{HPO}_{4}^{2-}\) \(\mathrm{H}_{3} \mathrm{PO}_{4}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{H}_{3} \mathrm{O}^{+}+\mathrm{H}_{2} \mathrm{PO}_{4}^{-}\) Therefore, pair paid given in option (4) is not a conjugate acid pair as one species is not formed from the other by donation of proton.
CHXI07:EQUILIBRIUM
314423
Which of the following has no conjugate base?
1 Oxide ion
2 Hydroxide ion
3 Hydro peroxide ion
4 Hydrogen sulphate ion
Explanation:
Every protonic acid has conjugate base. Oxide \(\left(\mathrm{O}^{-2}\right)\) ion has no protons, so it has no conjugate base.
