NCT Challenge
An advanced chemistry exam with Standard and Elite divisions. Choose your challenge level and compete nationwide.
NCT Challenge covers advanced topics
This exam covers advanced content at the USNCO National level. We recommend it for students with college-level general and organic chemistry backgrounds. NCT Open is recommended as practice.
Format
60 or 72 MCQs (by division)
Duration
90 minutes
Divisions
Standard and Elite
Date
March 28, 2026
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Form below the exam details
About the NCT Challenge
The NCT Challenge is our advanced competition designed to challenge students with strong chemistry backgrounds. The exam covers college-level general chemistry and organic chemistry with a focus on in-depth conceptual and computational understanding.
Topics Covered
The NCT Challenge covers advanced chemistry topics, including:
- Atomic Structures & Periodicity
- Stoichiometry & Solutions
- Bonding & Molecular Structures
- Kinetics
- IMFs & States of Matter
- Equilibrium
- Electrochemistry
- Thermodynamics
- Descriptive & Laboratory
- Organic/Biochemistry
Two Divisions
Choose the division that matches your desired challenge level. Both divisions cover the same topics, but Elite has more questions in the same time.
Standard Division
60 multiple-choice questions in 90 minutes. National-level difficulty.
Elite Division
72 multiple-choice questions in 90 minutes. National-level questions plus 12 extra advanced organic chemistry questions.
Note: Division selection is based on self-assessment. Choose the level that best matches your preparation and desired challenge.
Awards
Recognition for Achievement
Students who demonstrate strong chemistry knowledge earn Gold, Silver, or Bronze medals. Top performers from each division are featured on our website!
Division Champions and top scorers receive special recognition
Exam Formats
In-Person
Take the exam at a local chapter on March 28, 2026.
- 2:00 - 4:00 PM EST
- Eligible for official rankings and medals
- Proctored environment
Online
Take the exam online on March 28, 2026.
- 8:00 - 10:00 PM EST
- Score reports and participation certificates
- Not eligible for official rankings
Key Dates
January 12, 2026
Registration Opens
Student and host registration begins
March 14, 2026
Host Application Deadline
Last day to apply to host a site
March 21, 2026
Registration Deadline
Last day to register for NCT Challenge
March 28, 2026
Exam Day
In-person 2-4 PM EST, Online 8-10 PM EST
March 29, 2026
Results Released
Scores and awards announced
Register for NCT Challenge
Fill out the form below to register for NCT Challenge 2026.