Course Content
UPSC Notes Samples
Full Syllabus Covered | 100% as per Official UPSC Syllabus
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1. Art & Culture Sample
Covered under topic 1. Indian culture will cover the salient aspects of Art Forms, Literature and Architecture from ancient to modern times.
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1. Indian culture will cover the salient aspects of Art Forms, Literature and Architecture from ancient to modern times. (copy)
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2. Modern Indian history from about the middle of the eighteenth century until the present- significant events, personalities, issues. (copy)
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5. History of the world will include events from the 18th century such as Industrial revolution, World wars, Redrawal of national boundaries, Colonization, Decolonization, Political philosophies like Communism, Capitalism, Socialism etc.- their forms and effect on the society.
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7. Role of women and women’s organizations, Population and associated issues, Poverty and developmental issues, Urbanization, their problems and their remedies.
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10.2. Introduction to Maps
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GS2
All topics that need updates are given below.
2. Functions and responsibilities of the Union and the States, issues and challenges pertaining to the federal structure, devolution of powers and finances up to local levels and challenges therein.
All topics that need updates are given below.
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5. Parliament and State Legislatures – structure, functioning, conduct of business, powers & privileges and issues arising out of these.
All topics that need updates are given below.
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6. Structure, organization and functioning of the Executive and the Judiciary; Ministries and Departments of the Government; pressure groups and formal/informal associations and their role in the Polity.
All topics that need updates are given below.
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12. Welfare schemes for Vulnerable Sections of the Population by the Centre and States and the Performance of these schemes; Mechanisms, Laws, Institutions and Bodies constituted for the Protection and Betterment of these Vulnerable Sections.
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GS3
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11. Science and Technology- developments and their applications and effects in everyday life.
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GS3: BIODIVERSITY AND ENVIRONMENT
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1. Environment
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GS4
All topics that need updates are given below.
GS3: SCIENCE AND TECHNOLOGY
All topics given below
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1. Motion & Measurements
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9. Metals & Non-Metals
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10. Energy
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12. Plant Organisms
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14. Life Processes
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18. Biotechnology
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19. Information Technology
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20. Space Technology
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National & International Current Affairs (CA) 2025
Current affairs of all months are given below
delete UPSC Sample Notes [English]

ii.3. Dalton’s Atomic Theory and the Intricate Patterns of Atoms and Molecules

Laws of Mass Conservation and Definite Proportions

  • Dalton’s atomic theory provided an explanation for the law of conservation of mass and the law of definite proportions. 

Essence of Dalton’s Atomic Theory

  • According to the theory, all matter, whether an element, a compound or a mixture is composed of small particles called atoms. 

Postulates of Dalton’s Atomic Theory and the Consistency of Matter’s Building Blocks

  • Atom: All matter is made of very tiny particles called atoms, which participate in chemical reactions. 
  • Indivisible: Atoms are indivisible particles, which cannot be created or destroyed in a chemical reaction. 
  • Properties: Atoms of a given element are identical in mass and chemical properties. 
    • Atoms of different elements have different masses and chemical properties. 
  • Compound:  Atoms combine in the ratio of small whole numbers to form compounds. 
  • The relative number and kinds of atoms are constant in a given compound.

John Dalton

John Dalton was born in a poor weaver’s family in 1766 in England. He began his career as a teacher at the age of 12 and after seven years he became a school principal. In 1793, he left for Manchester to teach mathematics, physics and chemistry in a college. He spent most of his life there teaching and researching. In 1808, he presented his atomic theory which was a turning point in the study of matter.