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Important topics from Chapters 1–4 of 2nd PUC (Class 12) Chemistry, tailored to the Karnataka State Board's 2025–26 syllabus:

  Chapter-Wise Weightage (2025 Blueprint) These are the marks allocated to chapters 1 through 4, as per the Karnataka Board’s chapter-wise weightage for the 2025 exam: Chapter 1: The Solid State Note: This chapter has been removed from the 2025–26 syllabus. Getmyuni Chapter 2: Solutions — 12 marks Getmyuni CollegeDekho Chapter 3: Electrochemistry — 13 marks Getmyuni CollegeDekho Chapter 4: Chemical Kinetics — 12 marks Getmyuni CollegeDekho Chapter-by-Chapter Breakdown of Important Topics Chapter 1: The Solid State As confirmed by the official syllabus, this chapter has been deleted from the 2025–26 curriculum and no longer needs preparation. Getmyuni Chapter 2: Solutions (12 marks) Key focus areas include: Types of solutions and expressing solution concentration (molarity, mole fraction, etc.) Solubility and vapor pressure of liquid solutions Ideal vs non-ideal solutions Colligative properties—such as elevation of boiling point, depre...
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Important topics from Class 12 (2nd PUC) Mathematics, specifically Chapters 1 to 4, based on the 2025–26 Karnataka State Board syllabus and weightage:

  Chapter-Wise Marks Allocation (2025 Blueprint) According to the official chapter-wise weightage for the Karnataka 2nd PUC Mathematics exam (out of 80 theory marks): Chapter Number Chapter Title Marks Allocation 1 Relations and Functions 10 2 Inverse Trigonometric Functions 7 3 Matrices 9 4 Determinants 13 CollegeDekho Chapter-Specific Focus Areas Chapter 1: Relations and Functions (10 marks) Types of relations : Understand reflexive, symmetric, transitive, and equivalence relations, including their properties. Functions : Master concepts of one-to-one (injective) and onto (surjective) functions, composite functions, and inverses. Careers360 Schools Aakash Institute Chapter 2: Inverse Trigonometric Functions (7 marks) Key concepts : Grasp definitions, domains and ranges, and principal value branches. Applications : Practice drawing and interpreting graphs of inverse trig functions. Careers360 Schools Aakash Institute Chapter 3: Matrices (9 marks) Matrix ...
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The most important topics for CBSE Class 12 Physics — Chapters 1 to 4 — aligned with the 2025–26 syllabus and marking scheme:

  Chapter-Wise Weightage (Theory: 70 Marks) According to the CBSE 2025 board exam blueprint, the theoretical marks are distributed as follows for Chapters 1–4: Chapter Title Marks 1 Electric Charges and Fields 5 2 Electrostatic Potential & Capacitance 5 3 Current Electricity 6 4 Moving Charges & Magnetism 6 Total Chapters 1–4 22 marks These four chapters collectively account for 22 out of 70 marks , making them high-priority areas for preparation. CollegeDekho Chapter 1: Electric Charges & Fields Key Topics: Coulomb’s Law — vector form and interactions between multiple charges Electric Field — concepts, field lines, and field of point charges Continuous Charge Distribution Electric Dipole — behavior in external fields, axial and equatorial components Gauss’s Law — formulation and practical applications Aakash Institute iSchoolConnect Vedantu Chapter 2: Electrostatic Potential & Capacitance Key Topics: Electrostatic Potential — poten...
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Important topics for Karnataka State Board (2nd PUC/Class 12) Physics, specifically focusing on Chapters 1–4 for the 2025–26 academic year, based on the updated syllabus and weightage.

  Chapter-Wise Marks Weightage (Theory Paper: 70 Marks) According to the Karnataka 2nd PUC Physics blueprint for 2025, the marks distribution for the first four chapters is as follows: Chapter 1: Electric Charges & Fields — 11 marks Chapter 2: Electrostatic Potential & Capacitance — 10 marks Chapter 3: Current Electricity — 13 marks Chapter 4: Moving Charges & Magnetism — 11 marks CollegeDekho Getmyuni These chapters collectively account for 45 marks , making them vital for exam preparation. Important Topics per Chapter Here’s what to focus on in each chapter for better performance: Chapter 1: Electric Charges & Fields Electric charge fundamentals: conductors vs insulators, charging by induction, Coulomb’s law Electric field : field lines, flux, electric dipole concepts, continuous charge distributions Gauss’s Law with applications—especially for an infinitely long charged wire Getmyuni Chapter 2: Electrostatic Potential &...
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Important topics from Chapters 1–4 of CBSE Class 12 Biology, based on the 2025–26 syllabus:

  Syllabus Context (Chapters 1–4) According to the latest CBSE Class 12 Biology syllabus for 2025–26, as outlined by CBSE Guidance and other credible sources, Chapter 1 to Chapter 3 fall under Unit VI: Reproduction (carrying 16 marks ), while Chapter 4 is part of Unit VII: Genetics and Evolution (worth 20 marks ) CBSE Guidance Web Oswal Publishers . Here’s how they align: Chapter 1 : Sexual Reproduction in Flowering Plants Chapter 2 : Human Reproduction Chapter 3 : Reproductive Health Chapter 4 : Principles of Inheritance and Variation Chapter-Wise Important Topics Chapter 1: Sexual Reproduction in Flowering Plants Flower structure — including male and female reproductive parts. Gametophyte development — male and female gametophytes. Pollination — types, agents, and examples. Out-breeding devices , pollen-pistil interaction , and double fertilization . Post-fertilization events — development of endosperm, embryo, seed, and fruit. Special re...
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important topics for Chapters 1–4 of Karnataka State Board (2nd PUC/Class 12) Biology, aligned with the 2025–26 syllabus:

  Confirmation of Syllabus Status for 2025–26 The Karnataka Board has confirmed that the 2nd PUC Biology syllabus for 2025–26 remains unchanged from the previous academic year—students are expected to study the full syllabus with no reductions . Full Chapter Coverage & Marking Weightage According to a recent breakdown, the Class 12 Biology syllabus still includes the following chapters with their corresponding marks: Chapter No. Chapter Name Marks 1 Sexual Reproduction in Flowering Plants 11 2 Human Reproduction 10 3 Reproductive Health 6 4 Principles of Inheritance and Variation 13 Chapter-wise Key Topics (Chapters 1–4) Drawing from detailed syllabus content, here's what you should focus on for each of these chapters: Chapter 1: Sexual Reproduction in Flowering Plants Flower structure (male/female reproductive parts), gametophyte development Pollination types and agents, out-breeding devices Pollen–pistil interaction, double fertilization Post-fertilizati...
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