Which of the following is the correct statement ?

Options

A. `HCO_(3)^(-)` is the conjugate base of `CO_(3)^(2-)`
B. `NH_(2)` is the conjugate acid of `NH_(3)`
C. `H_(2)SO_(4)` is the conjugate acid of `HSO_(4)^(-)`
D. `H_(2)CO_(3)` is the conjugate base of `HCO_(3)`

Answer

C

Explanation

`underset("Conjugate")(HCO_(3)^(-))underset(-H^(+))(rarr)underset("Conjugate base")(HSO_(4)^(-)), underset("Conjugate acid")(NH_(3))underset(-H^(+))(rarr)underset("Conjugate base")(NH_(2)^(-)) `
`underset("conjugate acid")(H_(2)SO_(4))underset(-H_(2))(rarr)underset("Conjugate base")(HSO_(4)^(-)), underset("Conjugate acid")(H_(2)CO_(3)) underset(-H^(+))(rarr)underset("Conjugate base")(HCO_(3)^(-))`