Draw all the isonmers of c,fcibri q. sol. ci f br f c=c c=c ci br f ,ci (total 6 isomers) f c=c c=c ci br br br f f c=c c=c br 1 ci ci

Any other alternative way of finding direct without draw isomerism.

Simple constant one atom here F is constant in all structure and put remaining atoms (Cl, Br, I) trans to F we will get 6 possible combinations so total isomers are 6.

Simple constant one atom here F is constant in all structure and put remaining atoms (Cl, Br, I) trans to F we will get 6 possible combinations so total isomers are 6.