NCERT Exemplar Solution for Class 12 Chemistry Chapter-16 Chemistry In Everyday Life
Chemistry plays a major role in human life, from medicines and food preservatives to soaps, detergents, and artificial sweeteners. The chapter Chemistry in Everyday Life helps students understand how chemical substances influence health, hygiene, nutrition, and daily activities. The concepts covered in the NCERT Exemplar Solution for Class 12 Chemistry explain the practical applications of chemistry in a simple yet scientific manner. This chapter connects classroom learning with real-world experiences, making chemistry more interesting and meaningful for students. Through conceptual explanations and application-based questions, the NCERT Exemplar Solution improves analytical understanding of drugs, chemicals in food, and cleansing agents. These detailed NCERT solutions for class 12, also help learners prepare effectively for board examinations and competitive entrance tests by strengthening theoretical knowledge and practical reasoning.
Find the Exercises PDF of NCERT Exemplar Solution for Class 12 Chemistry chapter-16.Chemistry In Everyday Life
Drugs and Their Classification
One of the most important topics discussed in this chapter is the role of drugs in treating diseases and maintaining health. Students learn that drugs are chemical substances used for diagnosis, prevention, and treatment of illnesses. The chapter explains how drugs interact with biological systems and influence body functions.
Drugs are classified into several categories based on their therapeutic action. These include analgesics, antipyretics, antibiotics, antiseptics, tranquilizers, antihistamines, and disinfectants. Analgesics are medicines used to reduce pain, while antibiotics help fight bacterial infections. Tranquilizers are used to treat stress and mental disorders, whereas antihistamines help control allergies. The exemplar solutions explain the difference between antiseptics and disinfectants, which is a commonly asked examination topic. Students also learn about the side effects of excessive drug use and the importance of using medicines responsibly. Understanding these concepts develops awareness about healthcare and the safe use of chemical substances.
Another key concept is chemotherapy, which involves the use of chemicals for the treatment of diseases. Students become familiar with the role of medicines in modern medical science and understand how chemistry contributes to improving human life expectancy and health standards.
Chemicals in Food and Daily Consumption
Food chemistry is another important section of this chapter. Students study preservatives, antioxidants, artificial sweeteners, and food additives that improve the taste, appearance, and shelf life of food products. Preservatives prevent spoilage caused by microorganisms, while antioxidants protect food from oxidation and rancidity.
Artificial sweeteners such as saccharin and aspartame are explained in terms of their advantages and applications. These compounds are widely used by people who need low-calorie alternatives to sugar. The chapter also discusses flavoring agents and coloring substances used in processed food products. The exemplar questions help students understand the chemical basis of food preservation and the effects of additives on health. This section connects chemistry with nutrition and daily lifestyle choices, making it highly practical and relevant.
Students also learn about the harmful effects of overusing certain chemicals in food products. Such discussions encourage awareness about balanced consumption and healthy living. By relating chemistry to everyday experiences, the chapter creates greater interest among learners and helps them appreciate the practical value of the subject.
Cleansing Agents and Their Importance
Cleansing agents are chemical substances used to remove dirt, grease, and stains from surfaces. This section introduces soaps and detergents along with their chemical composition and cleaning action. Students learn that soaps are sodium or potassium salts of long-chain fatty acids produced through the process of saponification.
The chapter explains how soaps work by forming micelles that trap oily dirt particles and allow them to mix with water. However, soaps are less effective in hard water because they form insoluble scum with calcium and magnesium ions. To overcome this problem, synthetic detergents were developed. Detergents are more effective in hard water and are widely used in household and industrial cleaning products. The exemplar solutions explain the classification of detergents into anionic, cationic, and non-ionic detergents. Students also understand the environmental concerns related to non-biodegradable detergents and the importance of eco-friendly alternatives.
This chapter highlights the close relationship between chemistry and human comfort. From maintaining hygiene to preserving food and developing medicines, chemistry contributes significantly to everyday life. The exemplar exercises strengthen conceptual understanding through reasoning-based and application-oriented questions that prepare students for examinations and real-life scientific awareness.