Which functional group from following is considered as principal functional group if polyfunctional compound…
Which functional group from following is considered as principal functional group if polyfunctional compound is to be named by IUPAC system?
\(-\mathrm{CN}\)
\(-\mathrm{OH}\)
\(-\mathrm{C} \equiv \mathrm{C}-\)
\(-\mathrm{COOH}\)
Solution
As per IUPAC rules, out of the following groups, -COOH will be regarded as the principal functional group.
The order of priority for choosing the principal functional group is \(-\mathrm{COOH} > -\mathrm{CN} > -\mathrm{OH} > -\mathrm{C} \equiv \mathrm{C}-\).