Question

List three oxidizing agents and three common reducing agents commonly found in nature, and give examples of what they oxidize or reduce.

Answer 1

Oxidising agent: the speies which oxidises other species (or) the species which accepts electrons from other species is called as oxidising agent.

Natural oxidising agents are :

1. oxygen

It oxidises f=iron in the presentce of moisture to its oxide which generally called as rusting of iron.

2. Ozone

It oxidises CFC's , Nitrogen oxides in the atmosphere causing ozone depletion

3. CO2

In photosynthesis Co2 oxidises H2O in the presence of light energy to O2

Reducing agents: the species which reduces other species (or) the species which gives electrons to other species is caaled reducing agent.

Natural reducing agents:

1. H2O

In photosynthesis it reduces Co2 to carbohydrate in the presence of light energy

2. Fe

it is oxidised by O2 and moiture in the nature