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.

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.