Which of the following pairs of species is not a conjugate acid-base pair?
a) hocl, ocl-
b) hno2, no2+
c) o2-, oh-
d) hso4-, so42-
e) h2co3, hco3

Answer : The option (c) is not a conjugate acid-base pair.

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

Or we can say that, conjugate acid is proton donor and conjugate base is proton acceptor.

(a) The equilibrium reaction will be,

In this reaction, are act as a conjugate acid-base pair.

(b) The equilibrium reaction will be,

In this reaction, are act as a conjugate acid-base pair.

(c) The equilibrium reaction will be,

In this reaction, are not act as a conjugate acid-base pair.

(d) The equilibrium reaction will be,

In this reaction, are act as a conjugate acid-base pair.

(e) The equilibrium reaction will be,

In this reaction, are act as a conjugate acid-base pair.

Hence, from this we conclude that, the option (c) is not a conjugate acid-base pair but it is a act as conjugate base-acid pair.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )