Question

1.find the conjugate acid or base for the following species Hno2,CN-,Hclo4-,F-,(Co3)2-,S-

Answer 1

Conjugate acids of CN-, F-, (CO3)2-, S2- are HCN, HF, HCO3-, HS- respectively.
Conjugate bases of HNO2, HClO4 are NO2-, ClO4- respectively.

Answer 2

Answer : The conjugate acid of $CN^-,F^-,CO_3^{2-}\text{ and }S^-$ are $HCN,HF,HCO_3^{-}\text{ and }HS$ respectively.

The conjugate base of $HNO_2\text{ and }HClO_4$ are $NO_2^-\text{ and }ClO_4^{2-}$ respectively.

Explanation :

Conjugate acid : A substance is formed by the gain of proton is known as conjugate acid.

Conjugate base : A substance is formed by the loss of proton is known as conjugate base.

The conjugate acid of $CN^-,F^-,CO_3^{2-}\text{ and }S^-$ are $HCN,HF,HCO_3^{-}\text{ and }HS$ respectively.

The conjugate base of $HNO_2\text{ and }HClO_4$ are $NO_2^-\text{ and }ClO_4^{2-}$ respectively.