State the conditions needed for this reaction to happen.
Suggest the structure of $B$, given that $B$ has molecular formula $\text{C}_3\text{H}_8$.
Compounds $C$, $D$ and $E$ are isomers with molecular formula $\text{C}_5\text{H}_{10}$. When heated with concentrated acidified $\text{KMnO}_4$, compound $C$ forms $\text{CO}_2$ and compound $F$ ($\text{C}_4\text{H}_8\text{O}_2$). Compounds $D$ and $E$ each produce a $1{:}1$ mixture of compounds $G$ ($\text{C}_2\text{H}_4\text{O}_2$) and $H$ ($\text{C}_3\text{H}_6\text{O}_2$). Suggest structures for compounds $C$-$H$.
Name the kind of isomerism shown by $D$ and $E$.
How is this reaction generally carried out?
State the type of reaction taking place here.
Draw the mechanism for this reaction, including the structures of any intermediates, plus any dipoles, lone pairs and curly arrows needed to show electron movement.