The correct options are:(A,C,D).
O3, ozone is a V shaped molecular geometry, with oxygen atoms attached to double bonded. They are the same in length. The bent shape is due to the presence of a lone pair. Ozone is diamagnetic in nature as there are no unpaired electrons present.
Therefore, option A, C and D are correct.
The number of oxygen atoms present in chemical formula of fuming sulphuric acid is _______.