Chapter 21, Problem 30QP

Interpretation Introduction

Interpretation:

The statement “thereaction between ${\text{H}}_{\text{2}}{\text{S and SO}}_{\text{2}}$ leads to the formation of sulphur at the site of a volcanic eruption”is to be explained.

Concept introduction:

Redox reactions are the chemical reactions in which the transfer of electrons takes place in two species.

These are also known as oxidation–reduction reactions where oxidation is theloss of electrons and reduction is thegain of electrons.

The oxidation number of an atom or a molecule is changed by the loss or gain of the electrons in the redox reactions.