114k views
4 votes
Which is not a conjugate acid-base pair?

Question 1 options:

H3O+ and H2O

H2O and OH-

NH3 and NH2--

NH4+ and NH3

HNO2 and H2O

1 Answer

1 vote

Answer:

Step-by-step explanation:

''A conjugate acid is formed when a proton is added to a base, and a conjugate base is formed when a proton is removed from an acid.''

In a conjugate acid-base pair, only difference between molecules is the amount of ''H''

One molecule must have 1 more H

in the last example HNO2 and H2O, difference is not only the H amount also H2O doesn't have N. So we can't say they are conjugate acid-base pair.

User Sunny R Gupta
by
7.2k points