You have a solution of a compound which contains one of the following potassium

Question

You have a solution of a compound which contains one of the following
potassium nitrite
sodium carbonate
sodium sulfite
thioacetamide
hydrogen peroxide
sodium bromide
potassium iodide
ammonium chloride


The following tests are done:
Acidify the sample with HCl and heat. No reaction is seen
Solid manganese dioxide is added, and the solution is heated.. Solution turns yellow.
Hexane is added and the solution is shaken. A purple color appears in the hexane

Calculate the following
What is the compound?
What is the colored species formed?

i know the answer is KI but what is the colored species formed?

Explanation / Answer

yes, you are right it's KI,the coloured species is KMnO4.

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