Animated Solution for Chemistry - Chemistry in Everyday Life: Match List-I with List-II. $\begin{array}{ll}\text{List-I (Drug)}& \text{List-II (Class of drug)}\\ \text{A. Furacin}& \text{I. Antibiotic}\\ \text{B. Arsphenamine}& \text{II. Tranquilisers}\\ \text{C. Dimetone}& \text{III. Antiseptic}\\ \text{D. Valium}& \text{IV. Synthetic antihistamines}\end{array}$ Choose the most appropriate match :

The Chemistry of Healing: Matching Drugs to Their Lifesaving Roles

Welcome to the fascinating world of medicinal chemistry! In this problem, we are presented with a classic matrix match question from the chapter "Chemistry in Everyday Life." This chapter is a goldmine for scoring easy marks in JEE, provided you have a solid grasp of the factual data presented in the NCERT textbook.

Our task is to link a list of specific drugs to their broad therapeutic classes. Imagine you are a pharmacist organizing these medicines into their correct categories on the shelves. Let's break down the chemistry and history behind each of these drugs to find their perfect matches.

We are given four drugs in List-I: Furacin, Arsphenamine, Dimetone, and Valium. In List-II, we have four therapeutic classes: Antibiotic, Tranquilisers, Antiseptic, and Synthetic antihistamines.

To solve this, we don't need complex mathematical derivations; instead, we need to rely on our memory and understanding of how these chemicals interact with the human body. Let's analyze them one by one.

The First Line of Defense

Have you ever wondered what kind of ointment we apply when we get a cut, a scrape, or a minor burn? Furacin is a very common and highly effective antiseptic.

Antiseptics are chemical substances that either kill or prevent the growth of micro-organisms. The crucial characteristic of antiseptics is that they are safe to be applied directly to living tissues, such as wounds, cuts, ulcers, and diseased skin surfaces. This is what distinguishes them from disinfectants, which are applied to inanimate objects like floors and drainage systems.

Because Furacin is applied to living tissues to prevent microbial growth, it perfectly matches the category of an antiseptic.

Therefore, we can confidently say:

The Magic Bullet

Next up is Arsphenamine, a drug with a truly fascinating history. Also known by its trade name Salvarsan, it was developed by the brilliant scientist Paul Ehrlich. Ehrlich was searching for a chemical that would act as a "magic bullet"—a substance that could seek out and destroy invading microbes without harming the host's body.

Arsphenamine was a monumental breakthrough. It acts as an antibiotic and was historically the first effective treatment for syphilis, a devastating bacterial infection. Although it has now been supplanted by modern antibiotics like penicillin, its discovery marked the dawn of modern chemotherapy.

Since Arsphenamine is used to treat bacterial infections inside the body, it is classified as an antibiotic.

Therefore, our second match is:

Calming the Allergic Storm

Moving on to Dimetone. When you experience an allergic reaction—like sneezing, a runny nose, or itchy eyes—your body is releasing a chemical called histamine. Histamine binds to specific receptors in the body, triggering these irritating symptoms.

Dimetone is a synthetic antihistamine. What it does is pretty clever: it acts as a competitive inhibitor. It competes with the natural histamine for the binding sites on the receptors. By occupying these sites, Dimetone effectively blocks histamine from exerting its natural action, thereby providing relief from the allergic symptoms.

Because of its specific mechanism of action against histamine, Dimetone is classified as a synthetic antihistamine.

Therefore, our third match is:

Soothing the Mind

Finally, we have Valium. In today's fast-paced and stressful world, you might have heard of tranquilizers. Valium is one of the most well-known drugs in this category.

Tranquilizers fall under the broader umbrella of neurologically active drugs. They act directly on the central nervous system. Valium is prescribed to reduce anxiety, stress, irritability, and tension, inducing a sense of calmness and well-being. It is a crucial medication for treating various mental diseases and severe anxiety disorders.

Given its profound effect on the nervous system and its use in reducing stress, Valium is a classic tranquilizer.

Therefore, our final match is:

Now, let's bring all the pieces of the puzzle together. Our final matching sequence is:

When we look closely at the given options, we must be careful not to rush. The options can look very similar, and this is where silly mistakes often happen under exam pressure. If we carefully check our derived sequence against the choices, we find that this exact sequence is given in option (d).

This question highlights a favorite concept for JEE examiners. Every year, you can expect direct matching questions from the "Chemistry in Everyday Life" chapter. To master this, you must memorize all the common drugs, their therapeutic actions, and even their chemical structures as given in the NCERT textbook. Don't get intimidated by the complex names. Create summary tables, use mnemonics, and revise them regularly. Securing these easy marks can significantly boost your overall chemistry score!