In: Chemistry
In the reaction, H3O+ is the
HNO2 + H2O ⇆ H3O+ + NO2-
A) conjugate base of HNO2.
B) conjugate acid of HNO2.
C) conjugate acid of H2O.
D) conjugate base of H2O.
Answer :- C) conjugate acid of H2O
Explanation :-
Conjugate acid :-
A conjugate acid is formed when a base reacts. It is the base that has received the H+ from the acid and donates the OH- ion in reaction.
Conjugate base :–
A conjugate base is formed when an acid reacts. It is the acid that gave the base the H+ ion and receives the OH- ion in reaction.
In this reaction HNO2 gives H+ ion that means HNO2 reacts as acid and H2O received H+ ion so reacts as base.
H2O which is base receive H+ ion and mades its conjugate acid H3O+.
So H3O+ is Conjugate acid of H2O.