JEE Mains · Chemistry · STD 12 - 4. d and f- block elements
The number of electrons involved in the reduction of permanganate to manganese dioxide in acidic medium is \(.......\).
- A \(4\)
- B \(3\)
- C \(2\)
- D \(1\)
Answer & Solution
Correct Answer
(B) \(3\)
Step-by-step Solution
Detailed explanation
\(\stackrel{+7}{ MnO _4^{-}}+4 H ^{+}+3 e ^{-} \longrightarrow \stackrel{+4} MnO _2+2 H _2 O\)
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