" 41.The ether in which all atoms may exist in one plane is "

The ether in which all atoms exist in one plane is

Amongst the given option, the compound(s) in which all the atoms are in one plane in all the possible conformations (if any), is/are

Amongst the given option, the compound(s) in which all the atoms are in one plane in all the possible conformations (if any), is/are

Give example of a molecule in which all atoms lie in same plane.

All fluorine atoms are in same plane in

All fluorine atoms are in same plane in

In which of the following molecules all the atoms lie in one plane ? .