00:01
In this problem, you are given a few different compounds and you're asked which displays optical isomerism.
00:08
So by this we mean r or s stereochemistry.
00:18
And for this, we need a carbon with four different groups on it.
00:30
So if we draw out our structures here, we have ch2 groups with alcohols coming off of them.
00:43
Well, these carbons have two hydrogens, and those are the same group.
00:49
So this isn't going to show optical isomerism.
00:56
If we look at b, we have a ch3 group, a ch group with a chlorine, and we have a carboxylic acid.
01:14
So on this carbon, we have a chlorine, a methyl group, a hydrogen, and a carbon.
01:21
Carboxylic acid...