How many isomers of #C_4H_8Cl_2# are here? How do you tell if one structure is an isomer of another?
I count 13 isomers of
I find that the easiest way to tell if one structure is an isomer of another is to write their IUPAC names.
Each isomer will have a unique name.
We use a systematic procedure to generate the structures.
A. Base chain is 1-chlorobutane
B. Base chain is 2-chlorobutane
C. Base is 1-chloro-2-methylpropane