Provide the reagents and conditions for the given steps, and the structures of compounds D, E, and F for the chemistry problems.

Here are the solutions to the chemistry problems.

5 (a) (i) Reagents and conditions for steps i, ii, iii, iv and v

Steps	Reagent and conditions
i	Br$_2$, UV light / heat
ii	KCN (or NaCN), ethanolic solution, reflux
iii	Dilute H$_2$SO$_4$ (or HCl), heat (reflux)
iv	Concentrated alcoholic KOH (or NaOH), heat (reflux)
v	HBr, room temperature

5 (a) (ii) Structures of compounds D, E and F

• **D