Potassium Permanganate Is a Strong Oxidant Commonly Used in Redox

question 19

Multiple Choice

Potassium permanganate is a strong oxidant commonly used in redox titrations.Which is(are) TRUE for permanganates titration chemistry?
I In strongly acidic solution the permanganate half-reaction is + 8 H⁺ + 5 e^- ⇋ Mn²⁺ + 4 H₂O.
II In neutral or alkaline solution the permanganate half-reaction is + 4 H⁺ + 3 e^- ⇋ MnO₂ (s) + 2 H₂O.
III In strongly alkaline solution the permanganate half-reaction is + e^- ⇋ .

• A)III only
• B)II and III
• C)I and III
• D)I and II
• E)I,II,and III

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