Q8 / 150 · MHT CET 2026 (16 April Shift 2) · Chemistry
Identify the use of Baeyer's reagent by the following.
- Correct answerADetecting the presence of carbon carbon double bond.
- BPolymerisation
- COxidation
- DReduction
Solution
Baeyer's reagent is a cold, dilute, alkaline solution of potassium permanganate ($KMnO_4$).
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 ($MnO_2$) is formed.
Therefore, it is used for detecting the presence of carbon-carbon double bonds.
Answer: Detecting the presence of carbon carbon double bond.
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 ($MnO_2$) is formed.
Therefore, it is used for detecting the presence of carbon-carbon double bonds.
Answer: Detecting the presence of carbon carbon double bond.
Hence, the correct answer is option: 'A'.