Question

what is the general formula of "alkene" and "olefins"

Answer 1

The alkenes comprise a series of compounds that are composed of carbon andhydrogen atoms with at least one double bond in the carbon chain. This group of compounds comprises a homologous series with a general molecular formula of C n H 2 n , where n equals any integer greater than one.

Answer 2

alkene=CnH2n+2
olefins=CnH2n
where n=number of carbon