(a)[1]
What is the H-C-H bond angle at propene’s terminal $=\text{CH}_2$ group?
(b(i))[1]
When propene gives 1,2-dichloropropane, $\text{CH}_3\text{CHClCH}_2\text{Cl}$, State fully what type of reaction this is.
(b(ii))[3]
When cyclopropane reacts with chlorine, three distinct compounds having molecular formula $\text{C}_3\text{H}_4\text{Cl}_2$ may be produced. Draw displayed structures of each of these three compounds.