The National Standard Examination in Chemistry (NSEC) is the entry point for Indian students aspiring to represent the country in the International Chemistry Olympiad (IChO). Organized by the Indian Association of Chemistry Teachers (IACT) and administered through IAPT, NSEC is the first of five stages that lead to the international level.
NSEC is a national-level exam for Class XII or below students with a strong interest in Chemistry. Every year, over a lakh students appear for NSEC, and top performers progress to the Indian National Chemistry Olympiad (INChO).
The NSEC 2025–26 syllabus broadly covers Physical Chemistry (PC), Inorganic Chemistry (IOC), and Organic Chemistry (OC) as per the Class XI and XII CBSE curriculum. ALLEN provides a thorough, topic-by-topic syllabus breakdown to help students prepare specifically, guaranteeing thorough coverage and compliance with Olympiad standards.
Students must confirm that they fulfill the IAPT eligibility requirements prior to registering for the National Standard Examination in Chemistry (NSEC) 2025–2026. These rules support the preservation of an equitable and consistent selection procedure for all applicants nationwide.
To participate in NSEC 2025-26, the student must:
Before registering for the National Standard Examination in Chemistry (NSEC) 2025–2026, students must make sure they meet the eligibility requirements. IAPT established these guidelines to guarantee uniformity and equity in the selection procedure. The main eligibility requirements are outlined below, which each applicant should carefully read over before submitting an application.
Students can register through the IAPT-listed authorized exam centers or their individual schools. On the official website, the precise cost, method of payment, and due dates will be disclosed.
India's path to the International Chemistry Olympiad (IChO) consists of five competitive stages, starting from the NSEC and ending at the international level. With increasingly difficult problems, each level assesses students' conceptual knowledge, critical thinking, and chemistry application abilities.
Students who excel in NSEC and later Chemistry Olympiad stages are given distinguished certificates and merit awards from IAPT and HBCSE. Top performers who make it to the OCSC (Orientation-Cum-Selection Camp) are awarded INChO medals.
ALLEN’s Chemistry study modules are meticulously designed to strengthen students preparing for high-level competitions like the National Standard Examination in Chemistry (NSEC) and subsequent stages of the International Chemistry Olympiad (IChO). These modules are perfectly aligned with the latest NSEC syllabus and are curated to match the conceptual depth and analytical rigor required at the Olympiad level.
ALLEN modules are systematically mapped to the official NSEC syllabus, covering all key topics from Physical Chemistry (PC), Inorganic Chemistry (IOC), and Organic Chemistry (OC) as per Class 11 and 12 curriculum. Each chapter is laid out with:
The content progresses from foundational to advanced levels, enabling students to:
While rooted in NCERT fundamentals, ALLEN modules go far beyond textbook content by offering:
Modules include:
Each module is backed by insights from reputed Olympiad references to help students:
(Session 2025 - 26)