oxidizing and reducing agents

Oxidizing Agent

1. A chemical substance which reduces itself but oxidized other substance is known as the oxidizing agent.
2. Br₂ is an oxidizing agent in the following reaction.

H₂S       +   Br₂       →   2HBr  + S

Reducing Agent

1. A chemical substance which oxidizes itself but reduced other substances is known as reducing agent.
2. H₂S is reducing agent in the following reaction.

H₂S      +   Br₂     →           2HBr  + S