00:02
Here in this question, first you have to mark what is the asymmetric carbon atom in the molecule and then you have to draw all these stereosomers.
00:12
So in the a molecule you have this asymmetric carbon or stereogenic centre and second one is here this one.
00:24
So first of all you have to draw these two asymmetric centers and then you can draw all these two asymmetric centers and then you can draw all these stereosomers.
00:31
So in the a molecule first asymmetric center you are drawing so here it should be this one and this one and after that here it should be c2h5 and below the plane hydrogen and above the plane it should be chlorine.
01:07
Here c2h5 group is present but hydrogen is also there.
01:18
Hydrogen hydrogen hydrogen hydrogen and above the plane in place of chlorine it is oh group.
01:26
So this is the first compound font and another should be an enchant of this that is a mirror image.
01:38
So this is one carbon.
01:41
These positions are not changing c2h5 will remain seen and here also it should be c2h5.
01:54
Below the plane hydrogen everywhere you have to imagine that it is the mirror image and this is below the plane hydrogen but here it should be chlorine so this is second molecule now come to the third molecule they will be diastero isomar so this carbon this carbon pollution is not changing and c2h5 will remain here this is will way as such and this hydrogen position you are not changing and the oh position also will remain seen and here it should be chlorine in place of chlorine you are putting hydrogen and here it should be chlorine in the diastereosine and another should be mirror this so this carbon this carbon c2h5 another c2 which will be made the chlorine must be here and hydrogen hydrogen above the plane and next one should be hydrogen here and oh it should be so these two these four positions are actually four molecules are stereosomr of a molecule a compound b c c and d.
03:52
Now come to the next molecule.
03:56
For the next molecule, again you are putting the asymmetric center first.
04:02
This is your asymmetic center in the second molecule and this one is another.
04:09
So come to b molecule, draw our structures...