Question

The amount of chlorine consumed in
the oxidation of impurities, before any
disinfection is achieved is known as
(A) Residual chlorine
(B) Chlorine demand
(C) Total chlorine
(D) Free chlorine​

Answer 1

Answer:

hypo chlorite ions are used in oxidation of chlorine

Answer 2

Answer:

The process of chlorine consumed before any disinfection is achieved to oxidizing the impurities is called Chlorine demand.

Explanation:

Chlorine is a good oxidising agent. As a result, it has the capacity of oxidizing different types of impurities present in water. The oxidising agent results in the loss of an electron from the impurities and the gain of hydrogen atom takes place.

It is explained as the number of Chlorine needed to make water pure by dissolving the impurities. However, Chlorine is added in traces to make water pure. But excess of chlorine results in loss of taste of water.