00:01
So now we'll work on problem 66 from chapter 21.
00:06
Here we're given three structures and asked to name each die -substituted benzene molecule.
00:14
So for the first structure, we're given this molecule here, benzene with bromine and chlorine as substituents.
00:27
So we want to name the number of the carbons based on the substituents.
00:33
And since bromine is the first substituent alphabetically, we'll put one there and then two here, which gives us a name of one bromot2 chlorovenzy.
00:55
We could also name it based on the positions being ortho, meta, or para.
01:02
Since the bromine and chlorine are ortho to each other, we could call it o bromoclorobenzy.
01:18
For the second part, we have another benzene molecule, which has a chlorine substituent and an ethyl substituent...