Deactivate Facebook Group
Select the "Home" tab on your Facebook toolbar, and afterwards click the group name in the left panel. If you do not see the group listed, you will certainly need to get a member to add you to the group. If membership calls for admin authorization, the other member will first need to complete the following step and also become an admin.
Click the gear symbol near the top of the page, and after that select "Make Me Admin." If one more participant is doing this step for you, she could currently add you to the group as well as make you an admin. To earn you an admin, she has to select the "About" tab, click the "gear" icon under your name and after that select "Make Admin."
Select the "About" tab on the group page to show all the participants.
Click the "gear" icon under each participant's name, and also then pick "Remove From Group" Repeat the procedure until all the members are removed from the group. Remove on your own last, otherwise you'll be back to where you began. When you eliminate yourself, click the "Delete Group" button to close the group.
If you really did not create the group from your Facebook account, you will not have the ability to remove it unless the maker left the group willingly