See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Due to double bond, the geometrical isomers are: 3 3 CH CH CH CH CH CH CH      CH3 Cis Cis Trans Trans Cis Trans Trans Cis Identical When the double bonds are Cis and trans, the molecule becomes optically active.  For trans Cis (two optical isomers are possible)  Total no. of stereoisomers are: Geometrical(2) + Optical(2) = 4