00:01
Let me draw the structure of fatty acid given to us.
00:03
So that is a bond line structure that if the carbon and hydrogen atom are not shown here only the specific functional group are shown here and rest are the bonds okay.
00:15
So now we have here so one two three four five one two three four five 6 7 8 9 10 11 let me draw it again so we have here two double bonds 9 and 10 11 12 13 then we we have 14, 15, 16, 17, 18, okay.
01:07
So, this is the structure we have here.
01:11
So, we have total.
01:14
Since the first position should be given to the carbon atom which has the main functional group, okay.
01:20
So, carboxylic acid, this is carboxylic acid here, okay.
01:25
Carboxylic acid is represented like this okay cooh or c double bond oh so carboxylic acid is the main functional group here so that's why the leaf position should be given to this carbon atom so counting from this side 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 16, 17, 18...