Jazak Allah Khayr.
Can someone please explain to me the reactions of KMnO4 on Alkenes?
Also, why does only KMnO4 show that kind of reaction with Alkenes; why doesn't K2Cr2O7, as they're both oxidizing agents?
On Cold, dilute KMnO4, Alkenes produce diols by the breakage of the Carbon-Carbon double bond.
On Hot, concentrated KMnO4, Alkenes produce Ketones, or aldehydes which on further oxidation produces carboxylic acids. (However Methanal on futher oxidation produces H2O and CO2)
I'm not sure why only KMnO4, but that is what is written in the syllabus, so that is what I follow I hope I helped