Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R Assertion A : Permanganate titration are not performed in presence of hydrochloric acid. Reason R :

Question

Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$

Assertion $A$ : Permanganate titration are not performed in presence of hydrochloric acid.

Reason $R$ : Chlorine is formed as a consequence of oxidation of hydrochloric acid.

In the light of the above statements, choose the correct answer from the options given below

TestHub · Accepted Answer

Hydrochloric acid (HCl) is usually not used in the process of titration because it reacts with the indicator potassium permanganate $({KMnO}_{4})$ that is used in the process. It reacts with ${KMnO}_{4}$ solution and gets oxidized which further results in the liberation of chlorine gas according to the following reaction.
$2 {KMnO}_{4} + 16 HCl \to 2 {MnCl}_{2} + 2 KCl + 8 H_{2} O + 5 {Cl}_{2}$
So, Both $A$ and $R$ are true and $R$ is the correct explanation of $A$

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Options:

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