alleryWhy is hydrochloric acid avoided for acidifying KMnO4 titrations?
AIt slows the reaction badly
BIt is oxidised to chlorine
CIt forms a white precipitate
DIt is too weak an acid
Answer & Solution
Correct answer: B. It is oxidised to chlorine
Permanganate oxidises chloride to chlorine, which wastes titrant and itself acts as an oxidant.
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