How many stereoisomers are possible for dichlorocyclobutane?
Answer»
Solution :1, 3-Dichlorocyclobutanc can EXIST in cis and trans forms, trans-l, 2-Dichlorocyclobutane can exist in (+) - and (-) - forms. However, cis-1, 2 Dichlorocyclobutane has a PLANE of symmetry and HENCE it can exist as meso ISOMER.