I have trouble with the 2016 HSC CHEMISTRY questions 11 and 12.
For Q11: I got answer A basing my rules on NUmber 1 being the element that starts first in the alphabet (i.e 1-bromo), then worked my way down to eventually getting (1-bromo-1-chloro-2,2,2 trifluorethane). HOWEVER, answer says...