compose primary equations and IUPAC names for all potential isomers having the quantity of the twofold or triple bond as demonstrated C4H8 (one twofold bond)
compose primary equations and IUPAC names for all potential isomers having the quantity of the twofold or triple bond as demonstrated C4H8 (one twofold bond)

Solution:

The subsequent primary isomers with one twofold bond are plausible for C4H8:

The IUPAC name of

Compound (I) is But-1-ene,

Compound (II) is But-2-ene, and

Compound (III) is 2-Methylprop-1-ene.