Kindly find the query in the image.. and, try to give general statement (if required..)
1. We do not write "ene" in it as the double bond is not the only functional group.
2. When the double bond is secondary functional group, its suffix changes to "en" because, the last letter in the whole name should be of primary functional group like "l" of "ol", as alcohol is the primary functional group.
2. When the double bond is secondary functional group, its suffix changes to "en" because, the last letter in the whole name should be of primary functional group like "l" of "ol", as alcohol is the primary functional group.