In the poem, some of the words are capitalised to draw readers' attention to know the importance of the words in the context. The words that are capitalised in the poem refer to the virtues one should implement in their lives. The effectiveness of capitalising terms is to convey to the readers what different virtues mean and denote
A compound (A) with molecular formula $C_4H_9I$ which is a primary alkyl halide, reacts with alcoholic KOH to give compound (B). Compound (B) reacts with HI to give (C) which is an isomer of (A). When (A) reacts with Na metal in the presence of dry ether, it gives a compound (D), C8H18, which is different from the compound formed when n-butyl iodide reacts with sodium. Write the structures of A, (B), (C) and (D) when (A) reacts with alcoholic KOH.