What is meant by the conjugate acid-base pair ? Find the conjugate acid/base for the following species: HNO_2 , CN^(-) , HClO_4 , F^(-), OH^(-) , CO_3^(2-) and S^(2-)

What is meant by the conjugate acid-base pair ? Find the conjugate aci

1.	What is meant by the conjugate acid-base pair ? Find the conjugate acid/base for the following species: HNO_2 , CN^(-) , HClO_4 , F^(-), OH^(-) , CO_3^(2-) and S^(2-)
Answer» Solution :Example : The ionic equilibrium is as under by ionization of HCl in WATER. In this reaction `Cl^-` is a conjugate base of HCl and HCl is a conjugate ACID of `Cl^-`. HCl and `Cl^-` is a conjugate acid/base pair. Defination : The acid-base pair that DIFFERS only by one proton is called conjugate acid-base pair. Conjugate acid: `CN^(-)` of HCN, `F^-` of HF, `OH^-` of `H_2O, CO_3^(2-)` of `HCO_3^(-)`and `S^(2-)` of `HS^(-)` . Conjugate acid : `HNO_2` of `NO_2^-` and `HClO_4` of `ClO_4^-`