is precipitated in Group IV as a buff-colored sulphide. Boiling the solution with a strong oxidizing agent like and concentrated yields a red-violet (purple) solution. This color is due to the formati

Question

$Mn^{2+}$ is precipitated in Group IV as a buff-colored sulphide. Boiling the $Mn^{2+}$ solution with a strong oxidizing agent like $PbO_2$ and concentrated $HNO_3$ yields a red-violet (purple) solution. This color is due to the formation of:

Prashant Kotian · Accepted Answer

Correct answer: A. in concentrated is a powerful oxidizing environment that oxidizes all the way to the oxidation state, producing permanganic acid (), which exhibits the characteristic intense purple/red-violet color.

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