(a(i))[2]
Explain the meaning of structural isomerism.
(a(ii))[2]
Explain the meaning of stereoisomerism.
(b(i))[2]
Pent-1-ene, $\text{CH}_2{=}\text{CH(CH}_2)_2\text{CH}_3$, does not exhibit stereoisomerism. Give two reasons why pent-1-ene does not show stereoisomerism.
(b(ii))[2]
A structural isomer of pent-1-ene is used as the monomer to make a polymer. The repeat unit of this polymer is shown. Draw the displayed formula of the monomer used to make this polymer. Give the name of the monomer.
(b(iii))[2]
A different structural isomer of pent-1-ene shows geometrical isomerism. Draw the structure of one of the two geometrical isomers with the formula $\text{C}_5\text{H}_{10}$. Give the full name of this isomer.