GATE Chemical Engineering (CH) is a specialized branch in the Graduate Aptitude Test in Engineering, designed for aspirants pursuing careers in process industries, petrochemicals, pharmaceuticals, biotechnology, and environmental engineering. This branch tests your understanding of chemical processes, thermodynamics, mass transfer, heat transfer, reaction engineering, and process control. Practicing GATE CH previous question papers is crucial for understanding the exam format and improving your performance.
Chemical Engineering combines principles from chemistry, physics, mathematics, and engineering to design and operate processes that convert raw materials into valuable products. GATE CH aspirants typically include graduates from Chemical Engineering, Petrochemical Engineering, and related backgrounds who wish to pursue higher studies in IITs, NITs, and other premier institutes, or careers in top process industries, PSUs like IOCL, ONGC, GAIL, HPCL, and various pharmaceutical and petrochemical companies. The field encompasses areas such as process design, plant operations, environmental engineering, materials science, and biotechnology.
Key Subjects in GATE Chemical Engineering
Core Chemical Engineering Subjects
- Chemical Reaction Engineering
- Mass Transfer Operations
- Heat Transfer
- Process Control and Instrumentation
- Process Equipment Design
Foundation Subjects
- Engineering Mathematics
- Thermodynamics
- Fluid Mechanics
- Mechanical Operations
- Chemical Technology
GATE Chemical Engineering Previous Question Papers (2007-2025)
Download GATE CH previous year question papers with answer keys from 2007 to 2025. These GATE Chemical Engineering previous question papers help you understand the exam pattern, question types, difficulty level, and time management strategies. Solve these previous papers regularly to identify important topics and improve your problem-solving speed. These solved previous year papers are essential for effective GATE CH preparation and will help you score better in the actual exam.
| Year | Download |
|---|---|
| GATE 2025 | Question Paper|Answer Key |
| GATE 2024 | Question Paper|Answer Key |
| GATE 2023 | Question Paper|Answer Key |
| GATE 2022 | Question Paper|Answer Key |
| GATE 2021 | Question Paper|Answer Key |
| GATE 2020 | Question Paper |
| GATE 2019 | Question Paper|Answer Key |
| GATE 2018 | Question Paper|Answer Key |
| GATE 2017 | Question Paper|Answer Key |
| GATE 2016 | Question Paper|Answer Key |
| GATE 2015 | Question Paper with Key |
| GATE 2014 | Question Paper|Answer Key |
| GATE 2013 | Question Paper|Answer Key |
| GATE 2012 | Question Paper |
| GATE 2011 | Question Paper |
| GATE 2010 | Question Paper |
| GATE 2009 | Question Paper |
| GATE 2008 | Question Paper |
| GATE 2007 | Question Paper |
GATE CH Paper Pattern & Trends
Exam Pattern: GATE CH consists of 65 questions (55 technical + 10 General Aptitude) worth 100 marks. The paper duration is 3 hours. Topics like Chemical Reaction Engineering, Mass Transfer, Heat Transfer, Thermodynamics, and Process Control are frequently tested. Studying the previous question papers helps you understand how these topics are distributed in the actual exam.
Recent Trends (2020-2025)
Recent GATE CH previous question papers have shown consistent emphasis on Chemical Reaction Engineering with questions on reactor design, kinetics, and catalysis, typically accounting for 10-12 marks. Mass Transfer topics focus on distillation, absorption, extraction, and membrane processes, maintaining 10-12 marks. Heat Transfer covers conduction, convection, and heat exchangers, typically 8-10 marks. Thermodynamics and Process Control together account for 12-15 marks. Engineering Mathematics typically accounts for 13-15 marks. Reviewing these recent previous papers helps understand the current exam trends.
Historical Analysis (2007-2019)
Earlier GATE CH previous question papers (2007-2013) were conducted offline and had slightly different patterns. From 2014 onwards, GATE became completely online. The transition period (2014-2016) saw some variations in question distribution, but core subjects remained consistent. Previous papers from 2017-2019 show the modern pattern that continues today, with balanced coverage of chemical reaction engineering, mass transfer, heat transfer, thermodynamics, and process control. Analyzing these previous year papers helps identify recurring topics and question patterns, which is valuable for understanding the evolution of the exam over nearly two decades.
GATE CH Cutoff Marks
- GATE 2025: General - 27.7, OBC/EWS - 24.9, SC/ST/PwD - 18.4
- GATE 2024: General - 25.0, OBC/EWS - 22.5, SC/ST/PwD - 16.6
- GATE 2023: General - 32.1, OBC/EWS - 28.8, SC/ST/PwD - 21.4
Related Resources
GATE CH Cutoff Marks
GATE Chemical Engineering cutoff marks for all years
GATE Exam Pattern
GATE exam structure, marking scheme, and question types
Note: All GATE CH previous question papers are provided for educational purposes. Regular practice with these previous year papers, combined with a strong understanding of core concepts, is essential for success in GATE Chemical Engineering. Make sure to download and save these previous papers for offline practice. Solving these previous question papers under timed conditions will help you prepare effectively for the actual GATE CH exam.