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INChO 2026 Question Paper PDF Released, Download PDF

The INChO 2026 Question Paper has been released on 31st January 2026. The exam tests advanced chemistry concepts across Physical, Organic, and Inorganic Chemistry through six descriptive problems. Practicing this paper strengthens problem-solving and proof skills crucial for IChO selection.
authorImagePriyanka Dahima31 Jan, 2026
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INChO 2026 Question Paper

INChO 2026 Question Paper was released on 31 January 2026. The paper tests advanced chemistry concepts through problem-solving and proof-based questions from Physical, Organic, Inorganic, and Analytical Chemistry. The official PDF with solutions is released after the exam. Practising INChO question papers is essential for IChO-level preparation and selection success.

The INChO 2026 Question Paper is one of the most awaited resources for students aiming for India’s premier school-level chemistry competition. Conducted by HBCSE, INChO serves as the national selection stage for the International Chemistry Olympiad (IChO) training camp.

INChO 2026 Question Paper Overview

The INChO 2026 Question Paper opens doors to India's international chemistry team. Disciplined preparation with concept mastery gives the best shot at success.

INChO 2026 Question Paper Overview
Particulars Details
Exam Name Indian National Chemistry Olympiad (INChO) 2026
Conducting Body Homi Bhabha Centre for Science Education (HBCSE)
Exam Level National (Stage-3: NSE → INChO → IChO)
Mode Offline (Pen & Paper)
Total Questions 5-6 major descriptive problems
Total Marks ~80-100 (varies by problem)
Duration 3 hours
Question Type Problem-solving, subjective/proof-based
Main Topics Physical, Organic, Inorganic Chemistry
Next Stage IChO Training Camp

INChO 2026 Question Paper PDF Download

INChO 2026 Question Paper has been released, and the direct download link is now available. Students who qualified NSEJS/NSEC can use this paper to understand the exam structure, difficulty level, and conceptual depth. The official INChO 2026 question paper PDF, released by HBCSE, is available for download through the direct link provided below.

INChO 2026 Question Paper PDF

Study without using the internet

Paper Structure of INChO 2026

The paper typically features:

  • 5-6 multi-part problems

  • Detailed derivations and calculations required

  • Partial marks for logical steps

  • No negative marking; incomplete reasoning loses points

  • Tests application over rote memory

Topics Covered in INChO Question Paper

INChO 2026 syllabus follows Class 11-12 CBSE Chemistry at Olympiad depth:

Core Areas

  • Physical Chemistry (atomic structure, thermodynamics, kinetics, electrochemistry)

  • Inorganic Chemistry (periodic table, coordination compounds, p/d-block)

  • Organic Chemistry (reactions, mechanisms, stereochemistry)

  • Analytical Chemistry (experiments, quantitative analysis)

Concept Level- Class 11-12 + advanced Olympiad reasoning

Difficulty Level of INChO Question Paper

INChO stands as:

  • Much tougher than NSE Chemistry

  • Matches international Olympiad standards

  • Emphasises deep conceptual proofs

  • Top 30-35 students selected for IChO camp

Benefits of Practising INChO Question Papers

Practising builds:

  • Exam pattern familiarity

  • Structured proof-writing skills

  • Weak area identification

  • Endurance for complex problems

  • Competition-ready accuracy​

How to Prepare Using INChO 2026 Question Paper

  • Solve untimed initially for full understanding

  • Write complete solutions with mechanisms

  • Compare against official answers

  • Track errors in a dedicated notebook

  • Revise organic/inorganic daily

  • Attempt 2 full papers weekly

PW provides Olympiad exam content, including Olympiad Exams Updates, sample papers, mock tests, guidance sessions, and more. Also, enroll today in the Olympiad Online Batches for preparation.

INChO 2026 Question Paper FAQs

What is INChO 2026?

National chemistry Olympiad for IChO selection.

When will INChO 2026 Question Paper PDF release?

INChO 2026 Question Paper PDF has been released on 31st January 2026.

Is INChO objective or subjective?

INChO 2026 is Fully subjective/problem-solving.

What topics dominate INChO paper?

INChO Paper includes Physical/organic/inorganic chemistry at advanced level.
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