INChO 2026 Answer Key, Solutions And Download PDF Details

INCHO 2026 Answer Key: The Homi Bhabha Centre for Science Education (HBCSE) conducted the Indian National Olympiad (INO) examinations as part of the Science Olympiad 2025-2026. HBCSE is India's primary organization for Olympiad programs across Physics, Chemistry, Biology, Astronomy, and Junior Science. The INO exam is a vital stage for selecting participants for international science Olympiads.

INCHO 2026 Answer Key Overview

The Indian National Chemistry Olympiad (INChO 2026) exams were successfully held. Students participated in various subjects during this period.This table provides a concise overview of the key dates and details for the INO examinations.

INChO 2026 Answer Key and Solutions

HBCSE has released the question papers and proposed solutions for the INO exams. These materials are essential for students to review their performance and check their answers.

HBCSE holds the copyright for all INO question papers and their solutions. Full credit is awarded for scientifically sound alternative solutions. Partial credit is also given for partially correct answers. Complete justification and all necessary calculation steps are required for full marks in reasoning or calculation-based questions. The question papers and proposed solutions were officially updated on February 03, 2026. 

INCHO 2026 Answer Key PDF Download

The Indian National Olympiad (INO) exams concluded on January 31 and February 01, 2026. Official question papers and proposed solutions, including the INChO 2026 Answer Key for Chemistry, were released. Students can access these documents. Click the link below to download and check the INCHO 2026 Answer key.

INCHO 2026 Answer Key PDF Download

How to Download INChO 2026 Answer Key

The INChO 2026 exam occurred on January 31, 2026, and its official answer key (provisional solutions) has been released by HBCSE. You can download it directly from the official HBCSE Olympiads website.​

Download Steps

• Visit the HBCSE Olympiads page.

• Scroll to the "INO Question papers and proposed solutions" table (updated February 3, 2026).

• Click the "Solution" link under the Chemistry (INChO) row for the PDF.

Submission of Comments on Solutions

Students have the opportunity to provide feedback on the proposed solutions. This process helps ensure accuracy and allows for review. Comments on the provisional solutions for the INO exams can be submitted through the INO portal until February 08, 2026.

Tentative Schedule for INO-related Actions

A tentative timeline outlines other key actions and their respective dates related to the INO exams. These dates are subject to change but provide a general overview.This table provides important milestones for students and participants to keep track of.