CUET UG 2025 Syllabus Reduced! Complete List of Deleted Topics for Science Students

Aspiring CUET UG 2025 candidates, take note! The National Testing Agency (NTA) has streamlined the Science syllabus, cutting several topics from Physics, Chemistry, Biology, and Mathematics. If you’re preparing for the exam, knowing these deleted portions can save you time and help you focus on high-weightage chapters.

From Physics’ semiconductor devices to Chemistry’s p-Block elements, and Biology’s environmental issues to Maths’ Rolle’s Theorem, many concepts have been dropped this year. But don’t worry—we’ve analyzed the 2024 vs. 2025 syllabus in detail to give you a clear, exam-focused roadmap.

Key Changes You MUST Know:

• Physics: Entire Communication Systems unit removed!
• Chemistry: No more Polymers or Everyday Chemistry.
• Biology: Asexual reproduction & pollution case studies axed.
• Maths: Mean Value Theorems & Bond Valuation dropped.

Below is a comprehensive list of the topics that have been excluded from the CUET UG 2025 syllabus:

Biology/Biotechnology/Biochemistry (304)

1. Structural Changes

• 2024 Syllabus: 5 Units (Reproduction to Ecology).
• 2025 Syllabus: Same 5 Units, but reorganized into chapters (e.g., "Unit-I Reproduction" split into 3 chapters).

2. Deleted Topics in 2025

1. Unit I: Reproduction

• Asexual reproduction (binary fission, budding, vegetative propagation) removed.
• Reproduction in organisms (introductory content) dropped.

2. Unit II: Genetics and Evolution

• No major deletions, but streamlined (e.g., "Rice genome project" added under Human Genome Project).

3. Unit III: Biology and Human Welfare

• Improvement in food production (plant breeding, animal husbandry, apiculture) entirely removed.
• Microbes in human welfare: Added antibiotics (production and judicious use).

4. Unit V: Ecology and Environment

• Excluded subtopics:
  • Organism and its environment, abiotic factors, adaptations.
  • Ecological succession, nutrient cycles (carbon/phosphorus).
  • Environmental issues (pollution, global warming, case studies) fully removed.

3. Additions/Modifications in 2025

1. New Topics:

• Stem cell technology (Biotechnology applications).
• Dengue and chikungunya (added to human diseases).
• Ramsar sites (under Biodiversity conservation).

2. Rephrased/Expanded Topics:

• Seed dispersal (emphasized under "Significance of seed and fruit formation").
• Rice genome project (alongside Human Genome Project).

4. Retained Topics (No Changes)

• Core concepts like DNA replication, Mendelian inheritance, ecosystem energy flow, and biotechnology principles remain identical.
• Human reproduction, reproductive health, and evolution content is unchanged.

Summary of Changes

Physics (322)

Deleted Topics in 2025 (Removed from 2024 Syllabus):

1. Unit I: Electrostatics
   • Van de Graaff generator.
2. Unit II: Current Electricity
   • Carbon resistors and colour code.
   • Potentiometer (principle and applications for measuring potential difference, comparing EMF, and measuring internal resistance of a cell).
   • Metre Bridge.
3. Unit III: Magnetic Effects of Current and Magnetism
   • Cyclotron.
   • Magnetic dipole moment of a revolving electron.
   • Earth’s magnetic field and magnetic elements.
   • Electromagnets and factors affecting their strengths.
   • Permanent magnets.
4. Unit VI: Optics
   • Human eye, image formation, accommodation, and correction of eye defects (myopia and hypermetropia).
   • Resolving power of microscopes and astronomical telescopes.
   • Brewster’s law and uses of plane-polarized light and Polaroids.
5. Unit VII: Dual Nature of Matter and Radiation
   • Davisson-Germer experiment (only conclusion was required in 2024).
6. Unit VIII: Atoms and Nuclei
   • Radioactive decay law.
7. Unit IX: Electronic Devices
   • I-V characteristics of LED, photodiode, solar cell, and Zener diode.
   • Zener diode as a voltage regulator.
   • Junction transistor, transistor action, characteristics, and applications (amplifier, oscillator, switch).
   • Logic gates (OR, AND, NOT, NAND, NOR).
8. Unit X: Communication Systems
   • Entire unit (including elements of communication systems, bandwidth, wave propagation, modulation, etc.).

Additions in 2025 (New Topics Not in 2024 Syllabus):

1. Unit III: Magnetic Effects of Current and Magnetism
   • Torque on a current loop in a magnetic field (expanded emphasis).
2. Unit VI: Optics
   • Width of central maximum in single-slit diffraction (explicitly mentioned).

Chemistry (306)

1. Major Structural Changes

• 2024 Syllabus: 16 Units (Solid State to Chemistry in Everyday Life).
• 2025 Syllabus: 10 Units (Solutions to Biomolecules) – 6 units removed entirely.

2. Deleted Topics in 2025 (Not Present Anymore)

1. Unit I: Solid State

• Entire unit removed (crystal lattices, band theory, semiconductors, defects, etc.).

2. Unit V: Surface Chemistry

• Adsorption, colloids (Tyndall effect, electrophoresis), emulsions, catalysis.

3. Unit VI: General Principles of Isolation of Elements

• Extraction methods for Al, Cu, Zn, Fe.

4. Unit VII: p-Block Elements

• Entire group chemistry (Groups 15–18: nitrogen, oxygen, halogens, noble gases).

5. Unit XV: Polymers

• Classification, polymerization methods, examples (nylon, rubber), biodegradability.

6. Unit XVI: Chemistry in Everyday Life

• Medicines, food additives, cleansing agents (soaps/detergents).

7. Partial Deletions:

• Unit XIII (Organic Nitrogen): Cyanides/isocyanides (only diazonium salts retained).
• Unit XIV (Biomolecules): No changes, but moved to Unit X in 2025.

3. Retained Topics (Same in Both Syllabi)

• Solutions, Electrochemistry, Chemical Kinetics (identical content).
• d/f-Block, Coordination Compounds (minor rephrasing, no deletions).
• Organic Chemistry Units (Haloalkanes to Amines):
  • Nomenclature, reactions, mechanisms (e.g., nucleophilic addition, dehydration).
  • Biomolecules (carbohydrates, proteins, vitamins, nucleic acids).

4. Key Observations

• 2025 Focus: Core physical/organic chemistry (solutions, kinetics, electrochemistry, organic reactions).
• Reduced Emphasis:
  • Applied chemistry (everyday life, polymers, isolation of elements).
  • Descriptive inorganic (p-block groups).
  • Solid-state physics (semiconductors, crystals).

Summary of Changes

Mathematics/Applied Mathematics (319)

1. Structural Changes

• 2024 Syllabus:
  • Section A (Core Mathematics) + Section B1 (Mathematics) + Section B2 (Applied Mathematics).
• 2025 Syllabus:
  • Section A1 (Core Mathematics) + Section B1 (Mathematics) + Section B2 (Applied Mathematics).
  • Reorganization: Some topics shifted between sections (e.g., Probability Distributions moved to Section A1 in 2025).

2. Deleted Topics in 2025

1. Section B1: Mathematics

• Binary operations (under Relations and Functions).
• Elementary row/column operations (Matrices).
• Rolle’s and Lagrange’s Mean Value Theorems (Calculus).
• Definite integrals as a limit of a sum (Integrals).
• Projection of a vector on a line (Vectors).
• Scalar triple product (Vectors).
• Distance of a point from a plane (3D Geometry).

2. Section B2: Applied Mathematics

• Partnership (Numerical Applications).
• Valuation of Bonds (Financial Mathematics).

3. Additions/Modifications in 2025

1. New Topics:

• Strictly Explicit Additions:
  • Area under curves (Application of Integrals) now specifies "simple curves" (lines, circles, parabolas, ellipses).
  • Consumer surplus and producer surplus (Application of Integration in Applied Maths).
  • Poisson Distribution (Probability Distributions).

2. Rephrased/Expanded Topics:

• Differential Equations:
  • 2024: "Formulating and solving differential equations."
  • 2025: Explicitly includes growth and decay models.
• Probability Distributions:
  • 2025 adds Normal Distribution (continuous distribution).

4. Retained Topics (No Changes)

• Core Algebra/Calculus: Matrices, Determinants, Integration, Derivatives.
• Vectors & 3D Geometry: Direction cosines, vector equations.
• Linear Programming: Graphical method, feasible regions.
• Applied Maths: Modulo arithmetic, boats/streams, EMI calculations.

Summary of Changes

Also See: CUET UG 2025 Exam Pattern and Syllabus PDF Download