00:01
Problem 68, we are identifying the carbonyl groups on all of these structures that are given.
00:07
Okay, so starting with part a, i think part a is pretty clear right here.
00:12
Okay, so what we just have the, we just have a ketone right here.
00:19
So part a would just be a ketone.
00:26
Part b, part b right here may be a little bit tricky.
00:31
First of all, it's terminal, meaning it's connected.
00:35
To the very end carbon.
00:39
So we have two choices here.
00:40
It could either be an alcohol.
00:44
Could either be an alcohol or an aldehyde.
00:53
And so the safest way here is to just count how many things are attached to carbon.
01:00
So we got one.
01:04
This is attached to our carbon.
01:06
And then we have one hydrogen, right? so it has two things attached to it.
01:13
So that oxygen.
01:14
Has to be double bonded to carbon in order to fill those four bonds to carbon, right? so that means since we have a double bond, that means we have an aldehyde...