Answer:
3
Step-by-step explanation:
When cyclopropane is subjected to chlorination , the dichloro products formed are:
- Attach of the chlorine atoms on two different carbons -
It will form two geometrical isomers in which either both the chlorine atom are either cis or trans. ( 2 isomers)
- Attach of the chlorine atoms on same carbon -
It will form only one isomer as all the three carbons are same in cyclopropane.
Thus, number of isomers = 3
The structures are drawn in image below.