Given below are two statements: One is labelled as Assertion A and...

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.

$2{KMnO}_{4} + 16HCl \to 2{MnCl}_{2} + 2KCl + 8{H}_{2}O + 5{Cl}_{2}$

So, Both $A$ and $R$ are true and $R$ is the correct explanation of $A$