When alkenes undergo vigorous oxidation, i.e Kmn04 with Dil H2So4, heat, The double bond will be broken, resulting in 2 molecules. An oxygen will replace the missing end of each double bonds. Any hydrogen attached to that Carbon with the double bond will also have an oxygen added to it.
i didn't understand the clevage of alkene
When alkenes undergo vigorous oxidation, i.e Kmn04 with Dil H2So4, heat, The double bond will be broken, resulting in 2 molecules. An oxygen will replace the missing end of each double bonds. Any hydrogen attached to that Carbon with the double bond will also have an oxygen added to it.
C02 and H20 will be produce if it is a terminal alkene, as you would have realised