Question

1) In IUPAC system, if the
compound contains a double
bond, the ending of the parent
name change from​

Answer 1

Answer:

please send us photo of digram so we answer accurately

Answer 2

Answer:

If the carboxyl group is attached to a ring the parent ring is named and the suffix -carboxylic acid is added. When both double bonds and carboxyl groups are present, the -en suffix follows the parent chain directly and the -oic acid suffix follows the -en suffix (notice that the e is left off, -en instead of -ene).