- HF and F- , HS- and H2S are two conjugate acid – base pairs.
• F- is the conjugate base of the acid HF (or) HF is the conjugate acid of F-
• H2S is the conjugate acid of HS- (or) HS- is the conjugate base of H2S.
2.
- HPO42- and PO43- , SO32- and HSO3-are two conjugate acid – base pairs.
- PO43- is the conjugate base of the acid HPO42- (or) HPO42- is the conjugate acid of PO4 .
•HSO3- is the conjugate acid of SO32- (or) SO32- is the conjugate base of HSO3-.
3.
- NH+ and NH3, CO32- and HCO3- are two conjugate acid – base pairs.
• HCO3- is the conjugate of acid CO32- (or) CO32- is the conjugate bases of HCO3- .
• NH3 is the conjugate base of NH4+ (or) NH4+ is the conjugate acid of NH3 .