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NCERT Solutions for Class 12 Science (All Subjects & Chapters Index)

Welcome to Class 12 Science Master Portal!

Access comprehensive NCERT rationalized syllabus notes, solved textbook exercises, derivations, organic reaction mechanisms, numerical problems, and objective questions for Physics, Chemistry, and Biology.

Chapter Directory by Subject

Class 12 Physics (NCERT)

Ch 1: Electric Charges and Fields Ch 2: Electrostatic Potential & Capacitance Ch 3: Current Electricity Ch 4: Moving Charges and Magnetism Ch 5: Magnetism and Matter Ch 6: Electromagnetic Induction Ch 7: Alternating Current Ch 8: Electromagnetic Waves Ch 9: Ray Optics & Optical Instruments Ch 10: Wave Optics Ch 11: Dual Nature of Radiation & Matter Ch 12: Atoms Ch 13: Nuclei Ch 14: Semiconductor Electronics

Class 12 Chemistry (NCERT)

Ch 1: Solutions Ch 2: Electrochemistry Ch 3: Chemical Kinetics Ch 4: The d- and f-Block Elements Ch 5: Coordination Compounds Ch 6: Haloalkanes and Haloarenes Ch 7: Alcohols, Phenols and Ethers Ch 8: Aldehydes, Ketones & Carboxylic Acids Ch 9: Amines Ch 10: Biomolecules

Class 12 Biology (NCERT)

Ch 1: Sexual Reproduction in Flowering Plants Ch 2: Human Reproduction Ch 3: Reproductive Health Ch 4: Principles of Inheritance & Variation Ch 5: Molecular Basis of Inheritance Ch 6: Evolution Ch 7: Human Health and Disease Ch 8: Microbes in Human Welfare Ch 9: Biotechnology: Principles & Processes Ch 10: Biotechnology and its Applications Ch 11: Organisms and Populations Ch 12: Ecosystem Ch 13: Biodiversity and Conservation

Class 12 Board & Competitive Exam Strategy

Key Tips for Board Examinations & Competitive Entrance Tests (JEE / NEET):

• Physics: Master standard derivations (Gauss Law, Lens Maker Formula, Wavefronts), circuit numericals (Kirchhoff's Laws, AC Circuits), and semiconductor p-n junction characteristics.

• Chemistry: Practice named organic reactions (Aldol, Cannizzaro, Reimer-Tiemann), coordination compound IUPAC/CFT concepts, and physical chemistry formula-based numericals (Nernst equation, rate laws).

• Biology: Focus on NCERT diagrams (embryo sac, human reproductive system, DNA replication fork), genetic pedigree analysis, lac operon mechanism, and recombinant DNA technology steps.

Read More & Chapter Resources

These short notes are designed for quick revision. Read the main points once, then use the related material below to practise the same chapter. Revising a concept and checking it with questions can make your preparation more focused.

How to use these notes

These notes are designed for quick revision and should be used alongside the textbook. Read the chapter once for full understanding, then return here to recall definitions, formulas, key ideas and important examples.

Topics covered on this page

Quick revision tip

Finish one small section, close the page for a moment, and try to recall the main points in your own words. Then check the page again. This simple recall step can make revision more active.