The ionization of hydrochloric in water is given below:

HCl (aq) + H2O (l) ⇋ H3 O+ (aq) + Cl- (aq)


Label two conjugate acid-base pairs in this ionization.


Given equation:-


According to the bronsted-lowry theory, Conjugate acid-base pair is the species which differs by only one proton i.e. when you remove a proton from a parent acid it will become a conjugate base of that acid and that acid will be called a conjugate acid of that base. The two conjugate acid-base pairs in the ionisation of HCl are (HCl-Cl-) in which HCl is the conjugate acid and Cl- is the conjugate base similarly the second pair is (H2O-H3O+) in which H2O is the conjugate base and H3O+ is the conjugate acid.


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