which of the following is a conjugate acid-base pair? a)HNO3 and HNO2 b)H3O^+ and OH^- c )NaF and F^- d)all of these e)none of these

Question

which of the following is a conjugate acid-base pair?

a)HNO3 and HNO2

b)H3O^+ and OH^-

c )NaF and F^-

d)all of these

e)none of these

Answer 1

e) None of these

Conjugate acid / base pairs have exchanged an H^+ ion (one H^+ ion). None of the provided options contain a pair that differs by one H^+ ion.