Match List I (compound) with List II (use) and select the correct answer using the codes given below the lists: List I (Compound) 1\. acetylsalicylic 2\. DDT 3\. naphthalene 4\. carbon tetrachloride List II (Use) A. insecticide B. drug C. moth repellent D. fire extinguisher E. refrigerant (a) \(1-\mathrm{E}, 2-\mathrm{A}, 3-\mathrm{C}, 4-\mathrm{D}\) (b) \(1-\mathrm{B}, 2-\mathrm{C}, 3-\mathrm{D}, 4-\mathrm{A}\) (c) \(1-\mathrm{E}, 2-\mathrm{C}, 3-\mathrm{D}, 4-\mathrm{A}\) (d) \(1-\mathrm{B}, 2-\mathrm{A}, 3-\mathrm{C}, 4-\mathrm{D}\)

The study of chemistry often leads to the understanding of how various compounds are used in our daily lives. Chemical compounds have specific properties and functions that make them valuable in different applications, ranging from healthcare to pest control. In solving the presented exercise, the core concept lies in correlating compounds with their uses. By being able to match the compound with its use, one can appreciate just how integral these substances are in the fabric of day-to-day living.Chemical compounds are usually formed when two or more elements react chemically and their electrons bond together, resulting in substances with unique properties. Acetylsalicylic acid, DDT, naphthalene, and carbon tetrachloride are prime examples of how such substances, due to their specific chemical structures and properties, have roles in various fields like medicine, agriculture, household use, and even in safety equipment.

Acetylsalicylic acid, widely known as aspirin, is one of the most common and widely used drugs globally. Its primary use is to relieve pain, reduce inflammation, and lower fever. Aspirin is also an anticoagulant, which means it helps prevent blood clots, making it crucial in the management of heart-related conditions, such as heart attacks and strokes.

The versatility of aspirin as a pharmaceutical is due to its mechanism of action. It works by inhibiting the production of prostaglandins, chemicals in the body that promote inflammation, pain, and fever. Aspirin's effectiveness and relatively low cost have made it an indispensable component of everyday healthcare.

DDT, or dichlorodiphenyltrichloroethane, was widely used as an insecticide to control mosquito populations and reduce malaria and other vector-borne diseases. It played a pivotal role in public health campaigns and was very effective in reducing insect populations. However, due to its environmental and health impacts, such as toxicity to wildlife and potential links to human health problems, its use has been banned or restricted in many countries.

Despite its adverse effects, the role of DDT in historical pest control underscores the importance of chemicals in managing public health problems. It also highlights the need for sustainable and safe pest control solutions in modern agriculture and disease prevention.

Naphthalene is best recognized for its use in mothballs. This small, white, solid compound has a strong smell which repels moths and other insects. Its application as a moth repellent protects clothing and textiles from insect damage, especially in storage. Naphthalene sublimates, meaning it transforms directly from a solid to a gas at room temperature, which allows it to spread its odor and protective properties effectively.

Beyond moth repellents, naphthalene's chemical structure has made it useful in the production of other substances like dyes, resins, and synthetic fibers, showing the diverse utility of chemical compounds in various manufacturing processes.

Carbon tetrachloride was historically used in fire extinguishers due to its ability to inhibit combustion. This colorless, heavy liquid's chemical properties make it effective in stopping fires, particularly electrical and oil fires where water cannot be used. However, it is important to note that due to its health hazards, such as being a potent liver toxin and a potential carcinogen, its use in fire extinguishers has been largely discontinued.

Furthermore, carbon tetrachloride has found applications as a refrigerant and in the manufacture of propellants and cleaning agents. Its utility in various industries showcases the value of understanding chemical compounds and their applications, while also considering safety and environmental impact.