Is it me... (1 Viewer)

[Run hard@thehsc]

or is this naming fundamentally flawed?

the chlorides should have the lower numbering right?

 

[someth1ng]

The question is written badly because it's 1,1,1-trichloro-2,2,2-trifluoroethane and CFC-113a. However, you can still easily do the question as is.