HydrocarbonsmediumMCQ SINGLE

Which of the following will decolorise alkaline solution?Hydrocarbons Chemistry Question

Question

Which of the following will decolorise alkaline $KMnO_4$ solution?

Answer: D

💡 Solution & Explanation

Alkenes on reaction with potassium permanganate gives vicinal glycols and brown colored precipitates of 2 MnO . The formation of these brown colored precipitates results in the discharge of pink colored 4 KMnO . C CH3 CH3 O + H3C C CH3 O O3 Zn/H2O C C R R R R KMnO4 (Colored) Pink C C R R R R OH OH MnO4 Decolored (Brown ppt.) Vicinal Glycols Alkenes + HYDROCARBONS 14

💬
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes
Ask on WhatsApp →

Practice 22,000+ questions like this

AI-adaptive practice, video lectures, and full IChO (Chemistry Olympiad) content — all in one place.

JEE Advanced · JEE Mains · NEET · IChO · AP Chemistry