Draw the line‑bond structure of oleic acid (cis‑9‑octadecenoic acid), CH 3 ( CH 2 ) 7 CH = CH ( CH 2 ) 7 COOH , at physiological pH. Hydrogen atoms attached to carbon atoms do not need to be drawn.

Answer : The line-bonds structure of oleic acid (cis‑9‑octadecenoic acid) is shown below.

Explanation :

In line-bonds formula, the organic structures of the compound are represented in such a way that covalent bonds are represented by line and frame the structure by zig-zag straight lines which emits all the hydrogen atom.

The terminals of the line and vertex represents carbon atoms whose valences are satisfied by formation of single bonds with H atom.

The given compound is, (cis‑9‑octadecenoic acid)

In this compound, the parent chain is 18 membered and the carboxylic acid functional group is attached to it.