GATE 2026 CY Exam Timeline
IIT Guwahati has scheduled the Chemistry (CY) paper for the very first day of the examination window. Candidates must prioritize their final revision cycles accordingly.
Paper Pattern & Scoring System
The CY paper consists of 65 questions totaling 100 marks. Unlike engineering papers, Chemistry does not have a separate "Engineering Mathematics" section; instead, mathematics is integrated into Physical Chemistry topics.
• MCQ (Multiple Choice): Standard 1 or 2 mark questions with negative marking (1/3 or 2/3).
• MSQ (Multiple Select): One or more correct options. No negative marking. Ideal for theory-heavy Organic/Inorganic questions.
• NAT (Numerical Answer): Calculation-intensive questions. No negative marking. Common in Physical Chemistry.
Major Sectional Weightage
The 100 marks are divided into General Aptitude and the core Chemistry discipline. The core 85 marks are roughly distributed equally among the three main pillars of Chemistry.
Physical Chemistry Focus Areas
This section is highly numerical. Success here depends on your command over the virtual calculator and core formulas.
1. Quantum Chemistry: Postulates, Operators, and Particle in a box. Highly scoring.
2. Thermodynamics & Kinetics: Laws of thermo, Maxwell relations, and Collision theory.
3. Spectroscopy: Rotational, Vibrational, and Electronic spectroscopy (Beer-Lambert law).
4. Electrochemistry: Nernst equation, Conductance, and Fuel cells.
Organic & Inorganic Strategy
These sections test your conceptual depth and memory of reagents and structural properties.
Organic Chemistry: Focus on Reaction Mechanisms (Named reactions), Pericyclic reactions, and Stereochemistry (R/S, E/Z nomenclature).
Inorganic Chemistry: Focus on Coordination Chemistry (CFT, MOT), Organometallics (18-electron rule), and Main Group Elements.
Success Roadmap for CY 2026
1. Prioritize General Aptitude: Don't ignore these 15 marks; they are the easiest to score and act as a rank-booster.
2. NAT Accuracy: Since Physical Chemistry is full of NATs, practice solving without options to avoid calculation errors.
3. Reagent Masterlist: Maintain a short-note list of all Organic reagents and their specific functions to quickly solve "Predict the Product" questions.
4. PYQ Analysis (2015-2025): Patterns in Coordination and Quantum Chemistry often repeat. Solve at least 10 years of papers.
Official Links & Reference Portals
Refer to the Organizing Institute for authentic syllabus and mock test links: