Through the chapter, the author has explored the concept of freedom. G.B. Shaw highlights the fact that no person can ever be free throughout life. The first type of slavery of man to Nature is essential in every human being. Man's slavery to Nature is always joyous. A person feels happy in fulfilling his natural needs. However, we end up becoming slaves to our instincts of cleanliness, sleep, hunger, dressing up, etc. all these natural duties are a part of every individual's daily life. However, the second type of slavey is man to man, which is unnatural. It becomes worse both physically and spiritually. It is the type of slavery where the upper hand gets favourable results, whereas hard labour yields nothing. The standard of a person is distinguished among humans. Hence, the slavery of a man to Nature gives us comfort and joy and slavery of a man to man is hatred. It creates class wars between the poor and the rich, workers and businesspeople. Ultimately, there can be no peace as long as this type of slavery exists.
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.