Question

When $H_2O_2$ reacts with chlorine, the product obtained is.
A. $O_2$
B. $H_2$
C. $ClO_2$
D. $HOCl$

Answer 1

Hint: Hydrogen peroxide is an oxidizing as well as a reducing agent. Here oxidation and reduction will both take place and thereby this is a redox reaction.

Complete answer:
When Hydrogen peroxide reacts with chlorine it forms hydrogen chloride and oxygen.
${{\text{H}}_2}{{\text{O}}_2}{\text{ + C}}{{\text{l}}_2}{\text{ }} \to {\text{ 2HCl + }}{{\text{O}}_2}$
Thus from the reaction it is clear that HCl and O2 are the product. In this reaction, chlorine is reduced to HCl.
Due to environmental concerns about molecular chlorine, chlorine dioxide is replacing chlorine in some important industrial applications. This situation has increased interest in chlorine dioxide and prompted research related to its production. One process for the manufacture of chlorine dioxide involves reducing sodium chlorate with hydrogen peroxide. In this process, a side-reaction occurs in which some chlorine dioxide is consumed by reacting with hydrogen peroxide, The reaction almost follows first-order kinetics for chlorine dioxide and hydrogen peroxide; Activation energy is 12.4 kcal per mole.
Chlorine dissolves to some extent in water to give green solution. A reversible reaction occurs to produce a mixture of hydrochloric acid and hypochlorous acid.

So, the correct answer is Option A.

Note: When chlorine reacts with hydrogen peroxide, hydrogen peroxide collapses into water and oxygen. Chlorine gas thrives in hypochlorous acid (HOCl), which later turns into hypochlorite ions (OCl). The reaction between hydrogen peroxide and hypochlorite occurs very quickly. Other organic and inorganic materials cannot react with hypochlorite.
Hydrogen peroxide is an antiseptic which is used to prevent infection, minor cuts and burns. It kills yeasts, fungi, bacteria, virus and mold spores.