Which of the following is not a conjugate acid-base pair? a) nh4+/nh3 b) h30-oh oc) h2so3/hso3 d) c2h302-/hc2h302

Answer : The option (d) is not a conjugate acid-base pair.

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

Or we can say that, conjugate acid is proton donor and conjugate base is proton acceptor.

(a) The equilibrium reaction will be,

In this reaction, are act as a conjugate acid-base.

(b) The equilibrium reaction will be,

In this reaction, are act as a conjugate acid-base.

(c) The equilibrium reaction will be,

In this reaction, are act as a conjugate acid-base.

(d) The equilibrium reaction will be,

In this reaction, are act as a conjugate base-acid.

Hence, from this we conclude that, the option (d) is not a conjugate acid-base pair but it is a act as conjugate base-acid.

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements