Potassium dichromate K2Cr2O7
Potassium permanganate KMnO4
Shaalaa.com | D and F Block Elements part 25 (Interstitial compounds and Alloys)
Series 1: playing of 2
Answer the following question.
When MnO2 is fused with KOH in the presence of KNO3 as an oxidizing agent, it gives a dark green compound (A). Compound (A) disproportionates in an acidic solution to give a purple compound (B). An alkaline solution of compound (B) oxidizes KI to compound (C) whereas an acidified solution of compound (B) oxidizes KI to (D). Identify (A), (B), (C), and (D).