Baeyer's reagent is ....

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(B) Baeyer's reagent is defined as a cold,dilute,alkaline solution of potassium permanganate $(KMnO_4)$.It is used as an oxidizing agent to test for t

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$KMnO_4 + KOH$

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(B) Baeyer's reagent is defined as a cold,dilute,alkaline solution of potassium permanganate $(KMnO_4)$.It is used as an oxidizing agent to test for the presence of unsaturation (double or triple bonds) in organic compounds.When an alkene reacts with Baeyer's reagent,the purple color of $KMnO_4$ disappears,and a brown precipitate of $MnO_2$ is formed,indicating the formation of a vicinal diol.Therefore,the correct composition is $KMnO_4 + KOH$.

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