Deleted Topics in NEET 2025 by NTA: Reduced Chapters & Topics List

Deleted syllabus in NEET: Topics deleted from NEET Physics syllabus

Physics syllabus is considered to be the most challenging one in the NEET 2025 exam. NEET Physics syllabus is vast and requires candidate’s knowledge in theoretical as well as numerical field. The NEET deleted topics from Physics syllabus can be checked below.

Physics and Measurement

Scope and excitement; nature of physical laws; Physics, technology, and society Need for measurement: Length, mass, and time measurements, accuracy and precision of measuring instruments.

Kinematics

Elementary concepts of differentiation and integration for describing motion, Scalar and vector quantities: Position and displacement vectors, general vectors, general vectors and notation, equality of vectors, multiplication of vectors by a real number

Laws of Motion

Equilibrium of concurrent forces, lubrication

Rotational Motion

Momentum conservation, centre of mass of uniform rod

Gravitation

Geostationary satellites

Properties of Solids and Liquids

Shear, modulus of rigidity, Poisson’s ratio; elastic energy, Reynold’s number, Qualitative ideas of Black Body Radiation, Wein’s displacement law, and Green House effect, Cp, Cv, Newton’s law of cooling and Stefan’s law

Thermodynamics

Heat engines and refrigerators

Oscillations and Waves

Free, forced and damped oscillations (qualitative ideas only), Resonance, Doppler effect

Electrostatistics

Free charges and bound charges inside a conductor, Van de Graaff generator

Current Electricity

The flow of electric charges in a metallic conductor, Carbon resistors, color code for carbon resistors, Potentiometer-principle and applications to measure potential difference, and for comparing emf of two cells; measurement of internal resistance of a cell

Magnetic Effects of Current and Magnetism

Concept of magnetic field, Oersted’s experiment, Cyclotron, Magnetic dipole moment of a revolving electron, Earth’s magnetic field and magnetic elements, Permanent magnets

Electromagnetic Induction and Alternating Current

LC oscillations (qualitative treatment only)

Optics

Reflection and refraction of plane wave at a plane surface using wavefronts, Scattering of light- blue colour of the sky and reddish appearance of the sun at sunrise and sunset, Optical instruments: Human eye, image formation and accommodation, correction of eye defects (myopia and hypermetropia) using lenses, Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers

Dual Nature of Matter and Radiation

Davisson-Germer experiment (experimental details should be omitted; only conclusion should be explained)

Atoms and Nuclei

Isotopes, isobars; isotones, Radioactivity- alpha, beta and gamma particles/ rays and their properties decay law

Electronic Devices

Energy bands in solids (qualitative ideas only), conductors, insulators, Junction transistor, transistor action, characteristics of a transistor; transistor as an amplifier (common emitter configuration) and oscillator, Transistor as a switch

Deleted chapters for NEET 2025: Chemistry NEET syllabus

Many aspirants find Chemistry as the toughest subject of all in the NEET syllabus. NEET Chemistry syllabus covers one-fourth of the total questions asked in the NEET 2025 exam. Check the deleted chapters from NEET Chemistry syllabus 2025 below.

Some Basic Concepts of Chemistry

General Introduction: Importance and scope of chemistry

Atomic Structure

Atomic number, isotopes and isobars. Concept of shells and subshells, dual nature of light

Chemical Thermodynamics

Third law of thermodynamics- Brief introduction

Some p-block Elements

Atomic number, isotopes and isobars, Concept of shells and subshells, dual nature of matter and light

Organic Compounds Containing Nitrogen

Cyanides and Isocyanides- will be mentioned at relevant places

Environmental Chemistry

Environmental pollution: Air, water and soil pollution, chemical reactions in atmosphere, smogs, major atmospheric pollutants; acid rain ozone and its reactions, effects of depletion of ozone layer, greenhouse effect and global warming-pollution due to industrial wastes; green chemistry as an alternative tool for reducing pollution, strategy for control of environmental pollution

Polymers

Classification- Natural and synthetic, methods of polymerization (addition and condensation), copolymerization. Some important polymers: natural and synthetic like polyesters, bakelite; rubber, Biodegradable and non-biodegradable polymers

Chemistry in Everyday Life

• Chemicals in medicines- analgesics, tranquillisers, antiseptics, disinfectants, antimicrobials, antifertility drugs, antibiotics, antacids, antihistamines.

• Chemicals in food- preservatives, artificial sweetening agents, elementary ideas of antioxidants.

• Cleansing agents- soaps and detergents, cleansing action

Deleted topics of NEET 2025: NEET Biology deleted syllabus

Biology in NEET 2025 comprises Zoology and Botany subjects. The NEET Biology syllabus has 50% weightage in the exam. Candidates can check the deleted chapters from NEET Biology syllabus 2025 below.

Diversity in Living World

Three domains of life, Tools for study of Taxonomy – Museums, Zoos, Herbaria, Botanical gardens, Angiosperms, Angiosperms classification up to class, characteristic features and examples

Structural Organization in Animals and Plants

Morphology, anatomy and functions of different systems (digestive, circulatory, respiratory, nervous and reproductive) of an insect (cockroach). (Brief account only)

Plant Physiology

• Transport in plants: Movement of water, gases and nutrients; Cell to cell transport-Diffusion, facilitated diffusion, active transport; Plant – water relations – Imbibition, water potential, osmosis, plasmolysis; Long distance transport of water – Absorption, apoplast, symplast, transpiration pull, root pressure and guttation; Transpiration-Opening and closing of stomata; Uptake and translocation of mineral nutrients-Transport of food, phloem transport, Mass flow hypothesis; Diffusion of gases (brief mention)

• Mineral nutrition: Essential minerals, macro and micronutrients and their role; Deficiency symptoms; Mineral toxicity; Elementary idea of Hydroponics as a method to study mineral nutrition; Nitrogen metabolism-Nitrogen cycle, biological nitrogen fixation

• Seed dormancy; Vernalisation; Photoperiodism

Human Physiology

• Digestion and absorption; Alimentary canal and digestive glands; Role of digestive enzymes and gastrointestinal hormones; Peristalsis, digestion, absorption and assimilation of proteins, carbohydrates and fats; Caloric value of proteins, carbohydrates and fats; Egestion; Nutritional and digestive disorders – PEM, indigestion, constipation, vomiting, jaundice, diarrhea

• Reflex action; Sense organs; Elementary structure and function of eye and ear

Reproduction

Reproduction in organisms: Reproduction, a characteristic feature of all organisms for continuation of species; Modes of reproduction – Asexual and sexual; Asexual reproduction; Modes-Binary fission, sporulation, budding, gemmule, fragmentation; vegetative propagation in plants

Biology and Human Welfare

Tobacco abuse, Improvement in food production; Plant breeding, tissue culture, single cell protein, Biofortification; Apiculture and Animal husbandry

Ecology and Environment

• Habitat and niche, Population and ecological adaptations, Nutrient cycling (carbon and phosphorous); Ecological succession; Ecological Services-Carbon fixation, pollination, oxygen release

• Environmental issues: Air pollution and its control; Water pollution and its control; Agrochemicals and their effects; Solid waste management; Radioactive waste management; Greenhouse effect and global warning; Ozone depletion; Deforestation; Any three case studies as success stories addressing environmental issues.