Here's the solution to the organic chemistry problem:
a) Give the reagents and reaction conditions for the conversions (i), (ii), (iii) and (iv)
| Conversion | Reagent(s) | Reaction conditions |
| :--------- | :--------------------------------------- | :-------------------------- |
| (i) | Potassium cyanide (KCN) | Ethanolic, heat (reflux) |
| (ii) | Dilute hydrochloric acid (HCl) | Heat (reflux) |
| (iii) | Aqueous potassium hydroxide (KOH) | Heat (reflux) |
| (iv) | Aqueous potassium hydroxide (KOH) | Heat (reflux)