00:01
Dear friends, in this question we are given with four compounds and we have to find out which one is a e isomer.
00:07
We know about z and e configurations.
00:14
We say an isomer is that when two higher priority groups are on the same side.
00:20
In case of z isomer, higher priority groups are on the same side of the double bond.
00:39
Side of the double bond.
00:47
Then we say it is a z isomer, otherwise e.
00:51
That means if it is e isomer, then they will be in the opposite side.
00:58
Higher priority groups are on the opposite side.
01:02
Now, let us check here, bromine and ethyl group.
01:07
So higher priority group is bromine.
01:09
So let us put it number one and number two.
01:12
Here, nitrogen and oxygen.
01:14
Oxin is having higher priority compared to nitrogen.
01:19
So let this be 1 and this is 2.
01:22
Therefore it is z -isomer because they are on the same side.
01:26
When they are on the same side it is z -isomer.
01:29
So this is z -isomer.
01:30
Coming to the second one, here chlorine and fluorine.
01:34
Clorine is higher priority than fluorine...