COMEDK · Chemistry · 23. d and f Block Elements
In dilute alkaline solution \(\mathrm{MnO}_4^{-}\) changes to
- A \(\mathrm{Mn}_2 \mathrm{O}_3\)
- B \(\mathrm{MnO}\)
- C \(\mathrm{MnO}_4^{2-}\)
- D \(\mathrm{MnO}_2\)
Answer & Solution
Correct Answer
(D) \(\mathrm{MnO}_2\)
Step-by-step Solution
Detailed explanation
In a dilute alkaline or neutral medium, the permanganate ion \(\mathrm{MnO}_{4}^{-}\) acts as an oxidizing agent and undergoes reduction to form manganese dioxide, \(\mathrm{MnO}_{2}\). The balanced chemical equation for this reduction is:…
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