# GATE CH 2017 Previous Year Question Paper > GATE CH 2017 paper and answer key from IIT Roorkee: 36 MCQ, 29 NAT questions, hosted as PDF. Source: https://previousyearquestions.app/gate/ch/2017/ The official GATE CH 2017 question paper and answer key are on this page as PDFs from IIT Roorkee, with the original source linked beside each file. The GATE CH exam covers General Aptitude, Engineering Mathematics and CH core. Download them below, then sit the paper under exam timing with the attempt plan and error-log routine on this page. Explore: GATE CH hub · Syllabus & pattern · GATE CH 2018 · GATE 2017 (all papers) · How to use PYQs **[Download the official GATE CH 2017 paper and answer key (PDF)](#download-question-paper)**, hosted on this site with the official source linked. ## GATE CH 2017 at a glance GATE CH 2017 was set by **IIT Roorkee**. The files are hosted below: the question paper and answer key. | | | | --- | --- | | Organising institute | IIT Roorkee | | Paper | Chemical Engineering (CH) | | GATE 2017 exam window | 4, 5, 11 and 12 February 2017 | | Paper hosted here | 1 (plus answer key) | | Question types | 36 MCQ, 29 NAT | | Questions | 65: 10 General Aptitude (15 marks) + 55 core (85 marks) | | Total marks | 100 | | Duration | 3 hours | All counts come from the official answer key for GATE CH 2017. ## Paper analysis ### Snapshot of GATE CH 2017 GATE CH 2017 gave one full paper. The official key lists 36 MCQ, 29 NAT, so 45% of the paper is typed-answer (NAT) questions, which carry no negative marking. Of the 55 Chemical Engineering questions, 25 are worth 1 mark and 30 worth 2 marks; 22 of the 2-mark questions are NAT. Against GATE CH 2016, MCQs moved by -6 and NATs by +6. GATE 2017 was organised by IIT Roorkee; the original files were published on the organising site and are linked below through the Internet Archive. ### What this paper stresses - Numerical answers in CH depend on units and basis: mol against kmol, per hour against per second, and the stated reference state. Write the basis first. - Thermodynamics, mass transfer and reaction engineering questions reuse a small set of design equations, so a formula sheet built from your misses pays back quickly. - General Aptitude is 10 questions and 15 marks, easy to rush. ### What to extract before you move on - NAT vs MCQ miss counts. - GA topics you guessed versus knew. - A personal subject-weight table for Chemical Engineering from this sitting: Engineering Mathematics, Process Calculations and Thermodynamics, Fluid Mechanics and Mechanical Operations and the rest. - Every question where your answer was right but your time on it was not. **Analyst note:** Mark by the numbering in the paper you downloaded. ## How to sit GATE CH 2017 1. Download the paper and its answer key from this page. Do not open the key yet. 2. Sit the full paper in three hours, one sitting: 10 GA questions and 55 Chemical Engineering questions. Re-key NAT answers before you stop. 3. Mark it with the official key: MCQ by option, NAT by the range in the key. Apply negative marks on MCQs only. 4. Fill the error log the same day: section, subject, and miss type (concept, silly, time or misread). 5. Next session, repair only the logged items, then pick another year from the list below. ## Other years on this hub - [GATE CH 2026](/gate/ch/2026/) - [GATE CH 2025](/gate/ch/2025/) - [GATE CH 2024](/gate/ch/2024/) - [GATE CH 2023](/gate/ch/2023/) - [GATE CH 2022](/gate/ch/2022/) - [GATE CH 2020](/gate/ch/2020/) - [GATE CH 2019](/gate/ch/2019/) - [GATE CH 2018](/gate/ch/2018/) - [GATE CH 2016](/gate/ch/2016/) ## FAQ ### Where can I download the official GATE CH 2017 question paper? On this page: the official IIT Roorkee question paper and answer key, with a link to each original source. ### How many questions were in GATE CH 2017? 65 questions for 100 marks in 3 hours: 10 General Aptitude questions for 15 marks and 55 Chemical Engineering questions for 85 marks. The key lists 36 MCQ, 29 NAT. ### When was GATE CH 2017 held? GATE CH 2017 was part of the GATE 2017 exam window, organised by IIT Roorkee, which ran on 4, 5, 11 and 12 February 2017. ### Are memory-based GATE CH 2017 papers reliable? There is no need for them where the official paper is public. Use the files from IIT Roorkee's GATE site, not coaching reconstructions. ### Where is the GATE CH syllabus and pattern? See the GATE CH syllabus and pattern page on this hub, and check the current official brochure before your exam. ## Related reading - [How to use previous year papers](/guides/how-to-use-previous-year-papers/) - [How many years of PYQs?](/guides/how-many-years-of-pyqs/) - [Memory-based vs official papers](/guides/memory-based-vs-official-papers/) - [GATE CH syllabus & pattern](/gate/ch/syllabus-pattern/)