डैशबोर्ड · परीक्षाएँ · NSEC
National Standard Examination in Chemistry
HBCSE/IAPT Stage-1 chemistry olympiad. 80 MCQs in 3 hours — physical, inorganic, and organic chemistry at Class 11+12 level with olympiad-style depth.
Updated 16 Aug 2026 ·Vacancy counts change every cycle — always confirm the exact number in the latest official notification before applying.
Sourced
Source: official exam authority notification · refreshed weekly. How this works →
Free NSEC preparation on Shishya
Take expert-curated mocks, practise previous year papers, and Ask Shishya when you're stuck — verified by students who cleared the same path. All free, no credit card. Sign in with Google to begin.
✦ Try a NSEC question — free, no signup
Some Basic Concepts of ChemistryThe molality of a solution containing 5.85 g of NaCl dissolved in 500 g of water is:
Tap an option to check your answer.
डायग्नोस्टिक से शुरू करें
सिलेबस के 10 सवाल — देखें आप कहाँ खड़े हैं।
Verified against the official notification. Source ↗ · last reconciled 2026-05.
Topic-by-topic weightage averaged across 2022-2024 papers. Use this to decide where to invest study hours, not where to skim. Source ↗ · verified 2026-05.
80/240 marks avg
Thermo + equilibrium + kinetics + electrochem + atomic structure
80/240 marks avg
Reaction mechanisms + stereochemistry + biomolecules + named reactions
80/240 marks avg
Coordination + p-block + d-block + metallurgy + qualitative analysis
2025
12 प्रश्न
पेपर दीजिए →2024
12 प्रश्न
पेपर दीजिए →2023
12 प्रश्न
पेपर दीजिए →2022
12 प्रश्न
पेपर दीजिए →2021
12 प्रश्न
पेपर दीजिए →किसी भी मॉक को अपनी पसंदीदा भाषा में दें — मॉक के अंदर भाषा चयनकर्ता का उपयोग करें (हिंदी, तेलुगु, तमिल, बांग्ला और 15 अन्य)।
NSEC — Quick Practice
FULL20 प्रश्न · 180 मिनट
मॉक शुरू करें →Full-length subject tests below — 25 questions each, real exam format, instant scoring. Want to drill a single topic? Every topic has its own 10-question test in the syllabus.
Chemistry
80 QsTell Shishya exactly what to test you on — topics, size, difficulty — and get a fresh mock in seconds. Leave the box blank and we'll target your weakest topics.
लीडरबोर्ड पर अपनी जगह देखने के लिए मॉक दीजिए।
What can I get from NSEC?
Mock-score → expected rank → likely outcome. Use the mocks below to find your current band, then plan how many marks you need to climb.
IChO team contention
92–100% · Post-based exam (no numeric rank)
IAPT has confirmed that the National Standard Examination in Chemistry 2026 will be conducted on Sunday, 22 November 2026, from 11:30 AM to 1:30 PM. The exam carries 216 marks with 60 MCQs divided into Part A-1 and Part A-2.
Students in Class 11 and 12 can register for NSEC 2026 from 21 August to 14 September 2026 through the official IAPT portal or registered school centres. Registration fee is Rs. 300.
The Indian Association of Physics Teachers (IAPT) has opened the online registration portal for examination centres from 1 August 2026. Student enrolment will begin on 21 August 2026 through iapt.org.in.
किसी भी टॉपिक पर टैप करें — नोट्स + 10 सवालों का टॉपिक टेस्ट
Some Basic Concepts of Chemistry
Mole concept, stoichiometry, empirical and molecular formulas, concentration units.
Structure of Atom
Bohr model, quantum numbers, orbitals, electronic configuration and Aufbau principle.
Classification of Elements and Periodicity
Modern periodic table, periodic trends in radii, ionisation enthalpy, electron gain enthalpy and electronegativity.
Chemical Bonding and Molecular Structure
Ionic, covalent, coordinate bonding; VSEPR; valence bond and molecular orbital theories; hybridisation.
States of Matter
OCSC selection range
85–92% · Post-based exam (no numeric rank)
INChO top performers
75–85% · Post-based exam (no numeric rank)
INChO qualification likely
60–75% · Post-based exam (no numeric rank)
State-level contention
40–60% · Post-based exam (no numeric rank)
Below qualification threshold
0–40% · Post-based exam (no numeric rank)
AI-curated from historic cut-off patterns. Always verify with the latest official notification before making decisions.
NSEC 2025-26 Result declared
बीत गयाTue, 23 Dec, 2025
NSE results for NSEP, NSEC, NSEB, NSEA, and NSEJS were released together
NSEC 2026-27 Centre Registration Start
बीत गयाSat, 1 Aug, 2026
Schools and examination centres can register on iapt.org.in
NSEC 2026-27 Centre Registration End
बीत गयाThu, 20 Aug, 2026
NSEC 2026-27 Student Enrolment Start
बीत गयाFri, 21 Aug, 2026
Students can register through registered centres or directly on iapt.org.in
NSEC 2026-27 Student Enrolment Deadline
22 दिन बादMon, 14 Sept, 2026
Registration fee Rs. 300 (non-refundable)
NSEC 2026-27 Admit Card (expected)
79 दिन बादTue, 10 Nov, 2026
Admit cards typically released 1-2 weeks before exam through centres
🏅NSEC 2026-27 Exam
91 दिन बादSun, 22 Nov, 2026
Sunday, 11:30 AM to 1:30 PM; 60 MCQs, 216 marks, OMR-based
NSEC 2026-27 Answer Key (expected)
114 दिन बादTue, 15 Dec, 2026
Answer key typically released along with result in late December
NSEC 2026-27 Result (expected)
122 दिन बादWed, 23 Dec, 2026
Based on 2025-26 cycle; result includes MAS and merit list
INChO 2027 Registration (expected)
145 दिन बादFri, 15 Jan, 2027
NSEC qualifiers become eligible for Indian National Chemistry Olympiad
Ideal/real gases, kinetic theory, liquefaction; liquid-state properties; solid-state classification, lattices and unit cells.
Chemistry in Everyday Life
Drugs, cleansing agents, food additives — chemical aspects at NCERT level.
Central Sector Scholarship Scheme (CSSS)
₹12·Ministry of Education, Govt. of India