Which of the following is NOT a conjugate acidbase pair Plea

Which of the following is NOT a conjugate acid-base pair? (Please explain how you identified each reaction)

A.) (CH3)3N; (CH3)3NH+

B.) H2SO4; H2SO3

C.) HNO2; NO2-

D.) H2O; H3O+

Solution

A conjugate acid- base pair is the one which differs by one H+ ion.

Among the given pairs

A.) (CH3)3N; (CH3)3NH+

B.) H2SO4; H2SO3

C.) HNO2; NO2-

D.) H2O; H3O+

B is not the acid- base pair.