Question
How will you classify the redox reactions?
Solution
The redox reactions have been classified into two types:
(i) Direct redox reactions: In these reactions, oxidation and reduction take place in the same vessel. For example,
(a) Displacement of copper from CuSO4 solution when a zinc rod is dipped in it.
(b) Reduction of HgCl2 to Hg2Cl2 by SnCl2.
(ii) Indirect redox reactions: In these reactions, oxidation and reduction take place in different vessels. These reactions form the basis of the electrochemical cells in which chemical energy is converted into electrical energy.
