00:01
Dear students, as for the question, this is the structure of oxalic acid.
00:04
And our question is, is cis trans isomerism? sysomeryism is possible for oxalic acid or not.
00:16
Is possible for oxalic acid or not? now, you see, for cis trance isomerism or for geometrical isomerism, both are same.
00:32
We need two things.
00:33
One is a restricted rotation, restricted rotation against a carbon -carbon double bond or a ring.
00:48
Then the second point is the two atoms or groups, two atoms or groups attached to each carbon of the multiple bond, attached to each carbon of the multiple bond must be different, must be different.
01:21
So if these two conditions are satisfied, then only a compound will show geometrical isomerium or cis trans isomergium.
01:30
For example, we can take this compound.
01:34
For example, here we are having a bromine.
01:38
So it is one to dibroma ethene.
01:42
Now this will show geometrical isomerium because there is restricted rotation along this carbon -carbon double bond...