00:01
This problem covers the chirality of molecules.
00:03
Now the first question is asking about a molecule with two stereocenters and how many stereo isomers are possible.
00:12
So to find how many stereoisomers are possible, we want to use the formula to n is equal to stereoisomers and n is equal to stereocenters.
00:49
For this first one, we'll have 2 to the 2 is equal to 4, 4 stereo isomers possible.
01:00
And since this is true or false question, and it says 2 to 2 is equal to 4 stereo isomers possible, this would be true.
01:08
For the next one, it's asking about a molecule with three stereocenters.
01:14
So using the above formula, we would do 2 to the 3 is equal to 8 stereoisomers possible.
01:20
But the statement says 3 to the 2 is equal to 9 stereo ismer.
01:29
This would not be correct because we have to use this above formula to find how many stereoisomers are possible from the number of stereoceners.
01:39
So this question would be false because there are 8 stereoisomers possible, not 9.
01:49
For the next one, it's asking about anantomers and whether or not they occur in pairs.
01:55
So whenever you have an an antimer, like let's do an example here.
02:01
You have an oh here.
02:09
And then on a dash, you would have a hydrogen.
02:14
And then you could have a methyl.
02:18
And then let's say you have an amine.
02:23
So if i want to draw the anantamor of this, i'm going to switch two groups.
02:38
So in this case, i'll make the alcohol on a dash.
02:45
And the hydrogen will be on the wedge and then the methyl will stay the same.
02:56
So when i went to draw the anantomor for this molecule, i didn't have a lot of options.
03:02
I could just switch two groups and then i get one anantamor.
03:06
So that means that for every anantamor, there's one non -superimposable mirror image.
03:14
So yes, they do occur in pairs.
03:17
That is true.
03:19
The next question is asking about two pentanyl and three pentanol.
03:24
So let's draw those out.
03:29
So for two pentanol, we have the alcohol on the two locant.
03:36
For three, we have the alcohol...