NSO Exam Date:11 Dec' 25 - 11 Dec' 25
The Science Olympiad Foundation (SOF) has released the NSO Class 12th syllabus 2025. Students can find the SOF NSO 12th syllabus 2025 online at sofworld.org. The NSO 12th syllabus 2025 consists of three sections: Physics & Chemistry, Achievers Section and Mathematics/Biology. Students appearing for the NSO 12th exam 2025 can check out the topics included in the syllabus below.
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The SOF will conduct the NSO exam in two levels. The first level will be held on three dates, i.e., November 13, November 27 and December 11, 2025. Students can choose any one date to appear for the exam. Only those who clear the first level can appear in the second level. The NSO 12th syllabus can help students score good marks in the exam, as it consists of topics that need to be covered for the exam. Read further to learn in detail about the NSO syllabus for class 12th, steps to check the syllabus, exam pattern, etc.
Students preparing for the Olympiad can check out the overview of the NSO 2025 syllabus for class 12th below.
Exam conducting body | Science Olympiad Foundation (SOF) |
Exam name | SOF National Science Olympiad 2025 |
Total no. of questions | 50 questions |
Question type | Multiple Choice Questions |
No. of sections |
|
Total marks | 60 marks |
Exam duration | 1 hour |
Exam date | November 13, November 27 and December 11, 2025 |
Website | sofworld.org |
Also, check
The SOF NSO class 12th exam will be held for a duration of 1 hour. There are three sections in the NSO 12th class syllabus 2025. Below, we have provided a table for reference.
| Sections | Topics |
|---|---|
Section 1 | Physics:
Chemistry:
|
Section 2 | Higher Order Thinking Questions - Syllabus as per Section 1 |
Section 3 |
Or
|
Refer to the steps given below to check the NSO 2025 syllabus for class 12:
The NSO class 12th exam will be held in two levels, level 1 and level 2.
| Sections | No. of questions | Marks per question | Total marks |
|---|---|---|---|
Section 1: Physics & Chemistry | 25 | 1 | 25 |
Section 2: Achievers Section | 5 | 3 | 15 |
Section 3: Mathematics/Biology | 20 | 1 | 20 |
Total | 50 | 60 |
Also, check
Frequently Asked Questions (FAQs)
The SOF NSO level 1 class 12th exam will be held on three dates, November 13, November 27 and December 11, 2025.
Students can find the NSO 12th syllabus 2025 online at sofworld.org.
On Question asked by student community
Hi Sneha
The Science Olympiad Foundation is conducting the Set A and Set B exams, which are taking place between 13 November to 27 November 2025. Recently, the NSO released the answer key on their official website. Set A, B and C exam answer key release separately, and the student accesses the answer keys to match the correct answer with their answer. If you want to NSO class 5 answer key, then you can click on the article SOF NSO Answer Keys 2025-26 from our official website careers360.
Best Wishes.
Hello,
You can get the SOF NSO all sets Answer Keys 2025-26 from the careers360 website. This website also provides previous years question papers, important dates, syllabus, exam patterns, marking schemes, question papers along with answer keys, exam paper anlysis and preparation tips also.
Follow the link: https://school.careers360.com/articles/nso-answer-key
That's a smart step for verifying your performance! You can definitely find the NSO Answer Key for Set B on the provided resource page. The Science Olympiad Foundation (SOF) releases the answer keys for all sets and classes (1 to 12). Visit the link, scroll to the Answer Key section, and select your specific class to download the Set B PDF: https://school.careers360.com/articles/nso-answer-key . Use it to accurately calculate your score
Hello,
You can get the SOF NSO SET-B Question Paper with Answer Key from the Careers360 website. This website also provides previous year question papers, syllabus, important dates, exam patterns, marking schemes, question paper along with answer keys, exam paper analysis, preparation tips and many more.
follow the LINK: https://school.careers360.com/articles/nso-answer-key
I hope this answer helps you!
Hello,
29 out of 40 score generally consider very good score if exams difficulty was moderate to high and it show strong conceptual understanding and accuracy although your ranking depends on overall performance of nation wide and your level of class
From this score you can get decent rank and percentile
I hope you find this helpful!!!
Thank you
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