Question

IUPAC name of the compound is :

Answer 1

Rules for Naming Hydrocarbons:-

Rule-I Selection of the longest carbon chain.

Rule-II Numbering the longest chain: Longest chain is numbered starting from a terminal carbon. Numbering is done is such a way that lowest possible number is given to the side chain or a functional group.

Rule-III Writing names of branched, saturated hydrocarbons, locants are written first in alphabetical order followed by name of parent chain.

Rule-IV Some common names are retained in $IUPAC$ system for unsubstituted hydrocarbon only.

(Refer to Image)

$3-chloro,4-hexenoic$ $acid$

$-\stackrel{\stackrel{O}{||}}{C}-OH$=oic acid.

=bond=ene.

Cl=chloro.