The correct IUPAC name of the compound.
is
3 - ethyl - 4 - ethenylheptane
3 - ethyl - 4 - propylhex - 5 - ene
3 - (1 - ethyl propyl) hex - 1 - ene
4 - ethyl - 3 - propylhex - 1 - ene
4 - ethyl-3-propylhex-1-ene
Priority order → = > -
Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is: