GATE Chemistry Syllabus 2023 PDF

By BYJU'S Exam Prep

Updated on: September 25th, 2023

GATE Chemistry (CY) exam is scheduled for Afternoon Session on 5 February 2023. GATE Chemistry Syllabus 2023 is divided into General Aptitude (GA) and topics from Chemistry (CY). The paper will be divided between GA and CY at 5% and 85%, respectively. Knowing the syllabus is the primary step to preparing for the GATE Chemistry exam. Thus, below we have simplified the GATE Chemistry syllabus and other important points you must know.

It is unlikely that the administering committee will update the GATE Chemistry syllabus 2023, and it is likely to remain the same as in the previous exam. Candidates are advised to check the GATE syllabus for Chemistry (CY) before appearing for the upcoming examination.

Download Formulas for GATE Electrical Engineering – Signals and Systems

GATE Chemistry Syllabus 2023

To get good marks on the Chemistry exam, it is strongly advised that you prepare in accordance with the syllabus. The GATE Chemistry syllabus 2023 will include questions on topics including kinetics, transition elements, radioactivity, lanthanides and actinides, stereochemistry, pericyclic reactions, photochemistry, etc. in addition to general aptitude questions. The GATE Chemistry syllabus is divided into three major subjects:

  • Physical Chemistry
  • Inorganic Chemistry
  • Organic Chemistry

Formulas for GATE Electrical Engineering – Electromagnetic Theory

GATE Chemistry Syllabus 2023 PDF

Candidates can download the GATE Chemistry Syllabus 2023 PDF which includes a comprehensive description of the important topics. To effectively study for the exam, it is advisable that candidates retain the GATE Chemistry Syllabus PDF saved on their devices and even kept a paper copy of the same.

Download GATE Chemistry Syllabus 2023 PDF

The detailed topic-wise GATE Chemistry syllabus is as follows:

Physical Chemistry Syllabus

The Physical Chemistry section of the GATE Chemistry syllabus is the most difficult and important section of the exam. The topics included in the physical chemistry section are discussed below.

Formulas for GATE Electrical Engineering – Electrical Machines

Group Theory

Point groups and character tables, Hybrid orbital construction using symmetry aspects, Internal coordinates and vibrational modes, Symmetry elements and operations, and Symmetry adapted a linear combination of atomic orbitals (LCAO-MO).


Thermochemistry, Thermodynamics laws, functions and their relationships, Mixing Thermodynamics, Statistical thermodynamics, Raoult’s Law and Henry’s Law, Clausius- Clapeyron equation, Chemical potential, Relationship between Electrode potential & thermodynamic quantities, Absolute entropy, Phase rule, One component (CO2, H2O, S) and two-component systems (liquid-vapor, liquid-liquid, and solid-liquid), Azeotropes & eutectics, Partial molar quantities, Ideal and Non-ideal solutions, Equilibrium constant dependence on pressure & temperature, Ionic mobility & conductivity, Standard electrode potentials and electrochemical cells, and Fugacity, activity & activity coefficients.


Quantum mechanics postulates, Operators, Molecular structure & Chemical bonding, Valence bond theory, LCAO-MO theory application to H2+, H2, Hydrogen & hydrogen-like atoms, Multi-electron atoms, MOT theory of homonuclear and heteronuclear diatomic molecules, Dirac bra-ket notation, Approximation Methods (Variation method and secular determinants, First-order perturbation techniques), Hermite polynomials, Atomic units, Slater determinants, Schrödinger’s time-dependent & independent equations, Born interpretation, Pauli exclusion principle, Rotational motion (angular momentum operators, rigid rotor), Hybrid orbitals.


Diatomic and polyatomic molecular vibrational, Raman, rotational, and electronic spectroscopy, coefficients of Einstein, Atomic spectroscopy, Line broadening, Term symbols and spectral details, Russell-Saunders coupling, Nuclear magnetic resonance principles, Origin of selection rules, Transition moment integral and molar extinction coefficient & oscillator strength relationship.


Theory of transition state, Fast reaction kinetics (flow methods & relaxation methods), Photochemical & photophysical processes kinetics, Polymerization Kinetics, Effects of kinetic isotopes, Elementary, opposing, consecutive, and parallel reactions, Unimolecular reactions, Concepts of catalysis & enzyme catalysis, Diffusion controlled reactions, Complex reactions mechanisms, Approximation of steady-state, Potential energy surfaces and classical trajectories, Saddle points concept.

Surfaces and Interfaces

Langmuir, Freundlich and BET isotherms, Self-assembly, Surface tension, viscosity, and catalysis (mechanism of Langmuir-Hinshelwood), Colloids, micelles, and macromolecules’ physical chemistry, Physisorption & Chemisorption.

Organic Chemistry Syllabus

The Organic Chemistry section of the GATE Chemistry syllabus deals with various structures, reactions, and compositions of compounds. The topics included in the organic chemistry section are as follows.

Organic Synthesis

Atom economy and Green Chemistry, Protection and deprotection of functional groups, Concepts of multistep synthesis, Selectivity in organic synthesis (chemoselectivity, regioselectivity, and stereoselectivity), Concepts of asymmetric synthesis, Uses of Li, Zn, Cu, B, Mg, Sn, P, Si, and S based reagents in organic synthesis, Synthesis, reactions, mechanisms, and selectivity, Carbon-carbon bond formation through coupling reactions (Hiyama, McMurry, Tsuji-Trost, Kumada, Sonogoshira, Suzuki, Negishi, Stille, olefin metathesis, and Heck), Carbon-carbon and carbon-heteroatom bond forming reactions through enolates (including boron enolates), enamines, and silyl enol ethers.

Reaction Mechanism

Basic mechanistic concepts, Nucleo- & electrophilic substitution reactions, Linear free-energy relationship, Reactive intermediates, In addition, reactions to carbon-carbon and carbon-heteroatom (N and O) multiple bonds, Elimination reactions, Methods to determine reaction mechanisms with the help of kinetics, products identification, intermediates & isotopic labeling, and Molecular rearrangements.


Homo-, enantio- and diastereotopic atoms, faces & groups, Geometrical & optical isomerism, Acyclic and cyclic compounds’ conformational analysis, Stereoselective and stereospecific synthesis, Chirality & symmetry of organic molecules about chiral centres & absolute configurations, Configurational and conformational effects, atropisomerism, & neighboring group participation on reactivity and selectivity or specificity.


Chemical structural features of lipids, steroids, proteins, carotenoids, nucleic acids, alkaloids, and terpenoids, Mono-saccharides & di-saccharides (structure, reaction, & properties), Chemical synthesis and structure of peptides, and Physicochemical properties of amino acids.

Pericyclic Reactions & Photochemistry

Norrish type-I and II cleavage reaction, Photochemistry of alkenes, arenes, and carbonyl compounds, Electrocyclic, cycloaddition & sigmatropic reactions, Orbital correlations (FMO & PMO treatments, Woodward-Hoffmann rule), Di-π-methane rearrangement, Photooxidation & photoreduction, and Barton-McCombie reaction.

Heterocyclic Compounds

Furan, quinoline, pyridine, thiophene, isoquinoline, indole, and pyrrole (Structure, preparation, properties, and reactions).

Experimental Techniques in Organic Chemistry

Chromatographic techniques application (thin-layer, column, HPLC & GC), IR, UV-visible, NMR & Mass spectrometry application in determining the structure of organic molecules, and Polarimetry.

Inorganic Chemistry Syllabus

The creation of chemical compounds without a carbon-hydrogen link, their reactions, and their characteristics are all studied in inorganic chemistry. The Inorganic Chemistry section in the GATE Chemistry syllabus includes the following topics.

Subjects GATE Chemistry Syllabus

Main Group Elements

Industrial synthesis of main group elements compounds, Shapes & Reactivity of oxides, sulfides, oxoacids, hydrides, nitrides, halides, boron nitride, phosphazenes, boranes, silicones, borazines, carboranes, and silicates, Noble gases, pseudo halogens, and interhalogen compounds chemistry, Acid-base concepts and principles, Sulphur, Carbon, and phosphorus allotropes.

Transition Elements

Energy level diagrams in CFSE, CFT, various crystal fields, and Jahn-Teller distortion, Coordination chemistry (structure & isomerism), Transition metal complexes and their magnetic properties, Bonding theories (VBT, CFT, & MOT), Ray-Dutt & Bailar twists, Electronic spectra of transition metal complexes, Metal-metal multiple bonds, Reaction mechanisms (kinetic & thermodynamic stability, substitution & redox reactions).

Lanthanides & Actinides

Recovery, spectra, periodic properties, & magnetic properties.


Organometallic reaction types, fluxionality in complexes of organometallics, Metal-alkyl, metal-carbonyl, metal-olefin, and metal-carbene complexes and metallocene, 18-Electron rule, Heterogeneous catalysis – Ziegler-Natta polymerization, Fischer- Tropsch reaction, Homogeneous catalysis – hydroformylation, metathesis and olefin oxidation, hydrogenation, and acetic acid synthesis.


Bragg’s law, Band theory, Crystal systems and lattices, Crystal packing, Ionic crystals, Miller planes, Crystal defects, Spinels, metals, and semiconductors, Structures of AX, AX2, ABX3 type compounds.

Instrumental Methods of Analysis

Electro- and thermoanalytical methods, UV-visible, X-ray crystallography, Fluorescence and FTIR spectrophotometry, Chromatography including GC and HPLC, NMR and ESR, atomic absorption, and Mössbauer (Fe and Sn) spectroscopy, Mass spectrometry.

Bioinorganic Chemistry

Oxygen binding, Ion (Na+ and K+) transport, Nitrogen fixation, Electron transfer reactions, Transport and utilization, and Metalloenzymes containing Mg, Mo, Fe, Co, Cu, and Zn.


Radioactivity detection, fission & fusion processes, the half-life of radioactive elements and Decay processes.

GATE Chemistry Exam Pattern

The maximum number of papers a GATE candidate can take is two. However, they must come from the list of permitted combination options, which is posted on the official website. The combination of Chemical Engineering (CH) and Life Sciences (XL) is permitted for Chemistry (CY) papers.

  • The GATE exam is conducted using a computer-based test (CBT).
  • Candidates get three hours to complete the 65 questions in the GATE Chemistry Exam Pattern.
  • The exam consists of two different types of questions: MCQs and NAT.
  • The GATE Chemistry (CY) paper is graded for a total of 100 marks, with general aptitude receiving 15 marks and chemistry receiving 85 marks.

The GATE Chemistry exam pattern is discussed in the table below.

Sections No. of Questions Marks Duration
General Aptitude 10 15 3 Hours
Chemistry 55 85
Total 65 100

GATE Chemistry Syllabus Preparation Tips

The GATE Chemistry syllabus is somewhat vast. Thus, to assist a student, we have provided GATE preparation tips to cover the entire syllabus.

  • Refer to the GATE Chemistry syllabus before starting the preparation for the exam.
  • Practice previous year’s question papers and sample papers to get an idea about the type of questions in the exam.
  • Revise the topics regularly to boost confidence and reduce tension during exams.
  • Refer to the best books available.

GATE Chemistry Syllabus Important Topics

The GATE Chemistry syllabus is divided into Organic, Inorganic, and Physical chemistry. Some of the important topics included in the GATE Chemistry syllabus are given below.

  • Thermodynamics
  • Reaction Mechanism
  • Chemical Kinetics
  • Organometallics
  • Main Group Elements
  • Stereochemistry
  • Spectroscopy
Other Important GATE Topics
GATE Physics Syllabus GATE Mechanical Syllabus
GATE Civil Engineering Syllabus GATE Electrical Engineering Syllabus
GATE CSE Syllabus GATE ECE Syllabus
Our Apps Playstore
SSC and Bank
Other Exams
GradeStack Learning Pvt. Ltd.Windsor IT Park, Tower - A, 2nd Floor, Sector 125, Noida, Uttar Pradesh 201303
Home Practice Test Series Premium