Question:
What is the product obtained when alkene is reacted with cold and dilute alkaline potassium permanganate?
What is the product obtained when alkene is reacted with cold and dilute alkaline potassium permanganate?
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Baeyer's Reagent: Purple color disappears, forming a brown ppt and a glycol.
Updated On: Jun 19, 2026
- Alkanol
- Glycol
- Glycerol
- Alkanoic acid
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The Correct Option is B
Solution and Explanation
Step 1: Concept
Cold, dilute alkaline $KMnO_{4}$ is known as Baeyer’s reagent.
Step 2: Meaning
It is used for the hydroxylation of alkenes.
Step 3: Analysis
- Reaction of an alkene with Baeyer's reagent results in the addition of two -OH groups across the double bond. - This formation of a vicinal diol is commonly called a glycol.
Step 4: Conclusion
Hence, the correct product is Glycol. Final Answer: (B)
Cold, dilute alkaline $KMnO_{4}$ is known as Baeyer’s reagent.
Step 2: Meaning
It is used for the hydroxylation of alkenes.
Step 3: Analysis
- Reaction of an alkene with Baeyer's reagent results in the addition of two -OH groups across the double bond. - This formation of a vicinal diol is commonly called a glycol.
Step 4: Conclusion
Hence, the correct product is Glycol. Final Answer: (B)
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