Identify the use of Baeyer's reagent by the following.

Step-by-step solution

Baeyer's reagent is a cold, dilute, alkaline solution of potassium permanganate ( KMnO₄ ). It is a strong oxidizing agent, but its primary application in qualitative organic analysis is to test for unsaturation. When Baeyer's reagent reacts with an organic compound containing a carbon-carbon double bond (alkene) or triple bond (alkyne), the purple colour of the permanganate solution disappears and a brown precipitate of manganese dioxide ( MnO₂ ) is formed. Therefore, it is used for detecting the presence of carbon