Chemistry - STEREO ISOMERISM Question with Solution | TestHub

Assign CIP priorities on both C=C bonds.

In the first double bond (C-2=C-3), the higher-priority groups are –CH₂OH and the carbon chain. These lie on opposite sides, so it is E.

In the second double bond (C-4=C-5), the higher-priority groups are again the carbon chains attached to the double-bond carbons.

These higher-priority groups are also on opposite sides of the double bond.

Therefore, the second double bond is also E.

Hence the stereochemical configuration of the molecule is 2E, 3E.