Amongst the given options, the compound(s) in which all the atoms are in one plane in all the possib

Question

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

Professor PC Thomas Classes · Answer

(b, c) : Along C - C single bond, conformations are possible in butadiene in which all the atoms may not lie in the same plane.
Allenes with even number of double bonds are non-planar.