Graduate Aptitude Test in Engineering — Chemical Engineering
IIT Madras (organising institute for GATE 2027) · Online (CBT) · Annual (February)
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GATE CH Syllabus
Complete chapter-wise syllabus covering all subjects. Updated as per official exam pattern.
Basic English Grammar, Tenses, Articles and Adjectives, Prepositions, Conjunctions, Verb-Subject Agreement, Vocabulary: Idioms and Words in Context, Reading Comprehension, Sequencing of Ideas, Critical Reasoning and Verbal Deduction
Quantitative AptitudeData Interpretation: Tables, Graphs and Charts, Numerical Computation and Estimation, Ratios, Percentages, Powers and Exponents, Logarithms, Permutations and Combinations, Mensuration, Geometry and Elementary Statistics, Probability
Analytical AptitudeLogic: Deduction and Induction, Analogy, Numerical Relations and Reasoning
Spatial AptitudeTransformation of Shapes: Translation, Rotation, Scaling, Mirroring, Assembling and Grouping, Paper Folding, Cutting and Inking, Patterns in 2 and 3 Dimensions
Matrix Algebra and Rank, Systems of Linear Equations, Eigenvalues and Eigenvectors, Cayley-Hamilton Theorem
CalculusMean Value Theorems, Maxima and Minima, Partial Derivatives and Multiple Integrals, Gradient, Divergence and Curl, Line, Surface and Volume Integrals, Stokes', Gauss' and Green's Theorems
Differential EquationsFirst Order Equations: Linear and Nonlinear, Higher Order Linear Equations with Constant Coefficients, Cauchy's and Euler's Equations, Initial and Boundary Value Problems, Laplace Transforms
Complex VariablesAnalytic Functions, Cauchy-Riemann Equations, Cauchy's Integral Theorem and Integral Formula, Taylor and Laurent Series, Residue Theorem
Probability and StatisticsSampling Theorems and Conditional Probability, Mean, Median, Mode and Standard Deviation, Random Variables and Distributions, Binomial, Poisson and Normal Distributions, Correlation and Regression Analysis
Numerical MethodsNumerical Solutions of Linear and Nonlinear Algebraic Equations, Iterative Methods and Convergence, Numerical Integration and Differentiation, Single and Multi-step Methods for ODEs
Steady and Unsteady State Mass and Energy Balances, Recycle, Bypass and Purge Calculations, Gas Laws and Humidity Calculations
ThermodynamicsFirst and Second Laws, Entropy, PVT Behaviour of Pure Components, Property Estimation: Corresponding States, Phase Equilibria: VLE, Fugacity, Activity Coefficients, Chemical Reaction Equilibria and Equilibrium Constant
Fluid Statics and Manometers, Equations of Motion and Bernoulli Applications, Laminar and Turbulent Flow, Reynolds Number, Flow Through Pipes: Fanning Friction Factor, Dimensional Analysis
Flow Through EquipmentPacked and Fluidized Beds, Valves, Pumps, Compressors, Settling of Solids and Mixing/Agitation
Mechanical OperationsParticle Size Analysis and Size Reduction Laws, Crushers, Mills and Sieving, Filtration: Constant Pressure and Rate, Centrifugation, Sedimentation, Conveying and Storage of Bulk Solids
Steady and Unsteady State Conduction, Convective Heat Transfer: Correlations, Boiling, Condensation and Evaporation
Radiation and Heat Exchange EquipmentBlack Body and Grey Body Radiation, View Factors and Radiation Networks, Heat Exchangers: LMTD and NTU Methods, Fouling Factors
Fick's Law and Diffusivity Estimation, Film and Penetration Theories, Mass Transfer Coefficients
Separation OperationsDistillation: VLE, Relative Volatility, McCabe-Thiele, Packed Columns, Absorption and Stripping, Liquid-Liquid Extraction and Leaching, Drying and Humidification, Adsorption and Membrane Separation
Rate Laws and Order of Reaction, Temperature Dependence: Arrhenius Equation, Theories of Reaction Rates
Reactor DesignBatch, CSTR and Plug Flow Reactors, Multiple Reactors in Series/Parallel, Non-Isothermal Reactor Operation, Recycle Reactors
Non-Ideal Reactors and CatalysisResidence Time Distribution, Models for Non-Ideal Flow, Heterogeneous Catalysis: Rate Equations and Effectiveness Factor
Measurement of Process Variables: Temperature, Pressure, Flow, Level, Transducers and Dynamic Response of Instruments
Process ControlTransfer Functions and Dynamic Behaviour of Systems, Control Valves and Characteristics, Feedback Control: P, PI, PID Controllers, Frequency Response and Stability Analysis, Cascade, Feedforward and Ratio Control
Sulphuric Acid, Nitric Acid and Fertiliser Industries, Petrochemicals: Olefins and Aromatics, Polymer Industries and Synthetic Fibres
Oils, Soaps, Sugar, Pulp and PaperVegetable Oils Extraction and Hydrogenation, Soap and Detergent Manufacture, Sugar, Starch, Fermentation Industries, Pulp and Paper Manufacturing
Table of Contents
About Graduate Aptitude Test in Engineering — Chemical Engineering (GATE CH) 2027
The Graduate Aptitude Test in Engineering — Chemical Engineering (GATE CH) is one of the most competitive entrance exams, conducted by the IIT Madras (organising institute for GATE 2027). Preparing for the GATE CH requires systematic practice, conceptual clarity, and regular self-evaluation. Our platform offers dynamic mock tests, previous years' resolved papers, and AI-enabled analysis to help you secure a top rank.
Frequently Asked Questions
Which PSUs recruit through GATE CH 2027?
GATE CH is accepted by ONGC, GAIL, IOCL, HPCL, BPCL, RCFL, NFL, and FACT. Oil and gas and fertiliser PSUs actively recruit Chemical Engineers through GATE scores.
What are high-weightage subjects in GATE CH?
Mass Transfer, Heat Transfer, Chemical Reaction Engineering, and Fluid Mechanics together account for 40-50 marks in GATE CH. These are the four most important subjects to master.
Is GATE CH accepted at IIT Bombay for MTech?
Yes, IIT Bombay has one of the best Chemical Engineering departments in India. GATE CH qualifiers need a score above 700 and rank within top 50-100 for IIT Bombay MTech admission.
How many students appear for GATE CH annually?
GATE CH has approximately 15,000-20,000 applicants per year, making it less competitive than GATE CS or GATE ME. This means even a moderate GATE CH score can yield a decent rank for NIT admissions.
What is the scope of GATE CH for government jobs?
Chemical Engineering PSUs offer excellent packages. ONGC and IOCL engineer trainees earn ₹60,000-₹80,000 per month. GAIL and BPCL also offer competitive CTC of ₹15-25 LPA with benefits.
What is the GATE CH qualifying cutoff?
General category qualifying marks: 25 (2026), 27.7 (2025) and 25 (2024). The qualifying bar is modest; PSU (IOCL, GAIL, ONGC) shortlists demand scores above 650 instead.
How should I start preparing for this GATE paper?
Begin with the official syllabus — GATE questions rarely go outside it. Then work subject-wise with previous year questions (10+ years), and finish with 8-10 full-length CBT mocks. Remember: General Aptitude (15 marks) and Engineering Mathematics (13 marks) are common to every candidate — 28 of your 100 marks come before the core subject even starts.
How to Prepare for GATE CH
Fluid Mechanics and Heat Transfer are the most predictable GATE CH subjects — solve 10 years of previous questions
Chemical Reaction Engineering (CRE) requires deep conceptual understanding of reactor design equations
Process Control (PID Controllers, Laplace Transforms) overlaps with EE knowledge — thorough preparation pays off
Thermodynamics for Chemical Engineers uses different notation than Mechanical — pay attention to sign conventions
Mass transfer and reaction engineering numericals share design-equation logic — learn them as one framework
Chemical technology and plant economics are pure-recall marks — one consolidated notes sheet is enough to bank them