CBSE 12 Curriculum

An open economy is defined by its interactions with other countries through trade in goods, financial assets, and labor. Foreign trade significantly influences domestic aggregate demand as it involves both leakages and injections into the economy. The balance of payments includes crucial accounts such as the current account and capital account, which reflect the status of a country’s international transactions. Understanding how exchange rates and economic policies interact is essential for managing an open economy effectively.

The chapter covers semiconductor electronics, introducing the fundamental concepts of semiconductors, their classifications, and how doping alters their properties. It also explains the formation and behavior of p-n junctions and their applications in diodes and rectifiers.

Biomolecules are essential components of living organisms, including carbohydrates, proteins, nucleic acids, and hormones, which play critical roles in biological processes. Carbohydrates are classified into monosaccharides, disaccharides, and polysaccharides, while proteins are polymers made from amino acids linked by peptide bonds. Nucleic acids like DNA and RNA serve as the genetic material responsible for heredity and protein synthesis. Vitamins, required in small amounts, and hormones, functioning as intercellular messengers, are also significant components in maintaining physiological balance.

The chapter discusses the importance of services, institutions, and programs designed for children, youth, and the elderly. It highlights the vulnerabilities these groups face due to socioeconomic factors and the necessary interventions that can support their growth and well-being. Furthermore, it outlines career opportunities and essential skills required to manage such institutions effectively.

Corporate communication and public relations play a crucial role in managing organizational interactions with various stakeholders. Effective communication shapes public perception, enhances organizational reputation, and is essential for employee satisfaction and engagement. Both internal and external communication strategies are fundamental for maintaining a positive organizational image and facilitating successful public relations initiatives.

Globalisation is a multidimensional concept that encompasses political, economic, and cultural aspects. The chapter explores its implications, focusing on how globalisation affects and is influenced by various entities, particularly highlighting India's position in this global narrative. Additionally, it sheds light on the resistance movements against globalisation, which critically evaluate its effects on local cultures and economies.

The chapter explores the significance of social movements in shaping societies and promoting social change, particularly within the Indian context. It discusses various movements, including environmental, women's, and labor movements, highlighting their unique characteristics, goals, and the challenges they face. The interplay between old and new social movements is examined, emphasizing their influence in advocating for rights and systemic reform across different segments of society.

Practical research projects provide hands-on experience with sociological methods, emphasizing the differences between theoretical knowledge and practical application. By engaging in real research, students confront potential challenges while honing their skills. The chapter outlines various research methods, suggesting topics for projects that allow students to explore contemporary social issues.

The content dives into biodiversity, highlighting its various components—genetic, species, and ecological diversity—and discussing the critical need for conservation due to the alarming rates of species loss driven by human activities. It describes the patterns of biodiversity distribution, particularly the greater species diversity in tropical regions, and emphasizes the importance of biodiversity for ecosystem functionality and survival. Effective conservation strategies are outlined, stressing both in situ and ex situ methods to protect the rich biological heritage of Earth.

Coordination compounds form a crucial part of modern inorganic chemistry, exhibiting unique structures and properties that are foundational for biological systems and various industrial applications. Alfred Werner pioneered the theoretical framework for understanding coordination compounds, proposing key concepts regarding their bonding and structure. The chapter explores ligand types, isomerism, nomenclature, and the principles of valence bond and crystal field theories.

The chapter discusses electromagnetic waves, beginning with the concept of displacement current introduced by Maxwell to reconcile inconsistencies in Ampere's law. It highlights Maxwell's equations, the relationship between electric and magnetic fields, and the generation of electromagnetic waves through accelerated charges. Additionally, the chapter outlines the electromagnetic spectrum and its various applications in technology.

The chapter explores the philosophical, religious, and cultural developments in ancient India, focusing particularly on the evolution of Buddhism and Jainism alongside other contemporaneous ideas. It examines the significance of thinkers like the Buddha and Mahavira, the role of texts, architecture like stupas, and the interactions between various traditions shaping early Indian society. Through these themes, the enduring legacies of these beliefs are highlighted in both historical and contemporary contexts.

The chapter explores the agrarian society in India during the Mughal period, focusing on the relationships between peasants, zamindars, and the state. It highlights the intricate dynamics of agricultural production, land ownership, and the socio-economic structures that evolved within rural communities. The chapter also examines source materials, particularly the Ain-i Akbari, which provides valuable insights into agrarian practices and socio-political relations of the time.

The making of the Indian Constitution reflects the intricate process shaped by historical upheavals, diverse aspirations, and intense debates among its makers. Key figures in the Constituent Assembly negotiated various interests, ultimately framing a law suited to India's unique socio-political landscape, characterized by its commitment to democracy, rights, and secularism. The Assembly's discussions underscored the significance of individual liberties while addressing minority and group rights within the context of a unified nation-state.

Environmental pollution is primarily caused by human activities that release harmful substances into various ecosystems. Key types of pollution include air, water, land, and noise pollution, each with specific sources and consequences on health and the environment. Urban areas significantly contribute to these issues through waste disposal challenges and the growth of slums, while efforts for ecological restoration and public awareness are crucial for mitigation.

This chapter delves into international trade, highlighting its evolution from barter systems to modern trade practices. It discusses the role of various factors such as national resources, economic development, and transport in shaping trade dynamics, as well as the significance of global trade organizations like the WTO. The chapter concludes by analyzing the implications of international trade on economies and societal structures.

Groups play a crucial role in shaping individual behavior and social interactions. They can be defined by interdependence, shared goals, and structured roles. Different types of groups fulfill various needs, such as security and self-esteem, while also presenting challenges like social loafing and groupthink. Understanding group dynamics enhances our awareness of how we function within social systems.

Market equilibrium is achieved when the quantity demanded by consumers equals the quantity supplied by firms, resulting in a stable price and quantity in the market. Understanding the behavior of supply and demand helps in analyzing market shifts, which affect equilibrium price and quantity. The influence of government interventions, like price ceilings and floors, further illustrates the complexities of maintaining market balance.

The chapter outlines the contrasting paths of modernization taken by China and Japan in the 19th and 20th centuries. While Japan successfully transitioned into a modern nation-state and industrial power through its embrace of Western practices combined with traditional values, China faced turmoil and struggles, culminating in the Communist Revolution that sought to eradicate inequalities but resulted in a repressive political climate. The chapter emphasizes the importance of historical context and cultural identity in shaping national trajectories.

The chapter discusses the methodological foundations of sociology, focusing on how sociologists gather knowledge and the significance of both qualitative and quantitative methods. It emphasizes the tension between objectivity and subjectivity in social sciences, the importance of reflexivity, and the different approaches like participant observation, surveys, and interviews in sociological research.