The Science Olympiad Foundation (SOF) 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 was held on November 13, November 27, and December 11, 2025, for Sets A, B, and C, respectively. 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.
| Particulars | Details |
|---|---|
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 |
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Frequently Asked Questions (FAQs)
The SOF NSO level 1 class 12th exam was held on November 13, November 27, and December 11, 2025, for Set A, Set B, and Set C, respectively.
Students can find the NSO 12th syllabus 2025 online at sofworld.org.
On Question asked by student community
Hello,
For NSO level 2 students qualify via top perfomance in Level 1. I have attached the link for NSO results 2025 - 2026 in which you can get the results by entering your school code and roll number. Kindly check the below link and get your results.
https://school.careers360.com/articles/nso-result
I hope this helps you.
The nso answer key for class 9 set b is a critical resource for students to calculate their expected scores and analyze their performance in the national science olympiad. the answer key provides the correct options for all fifty questions, which are divided into three sections: logical reasoning, science, and the achievers section. according to the marking scheme, each question in the achievers section carries three marks, while questions in the other sections carry one mark each, with no negative marking for incorrect answers. by cross-checking their responses with the official set b key, students can assess their chances of qualifying for the level two examination. you can find the detailed question-wise answer key and download the pdf for class 9 set b by visiting the following link: https://school.careers360.com/articles/nso-answer-key
Hello,
The link to the answer key is attached herewith. You can find the answer key on the website of Careers360. It will help you analyse your in-depth performance.
https://school.careers360.com/articles/nso-answer-key
Thank you.
Hello
You can visit the link I am attaching below, so that you can get access to the answer key for classes 1 to 12. The SOF(Science Olympiad Foundation) released the SOF NSO answer key for set A on December 16, 2025. You can also visit the official site of SOF website and look for the NSO answer key from there. By just selecting your class and set, you can download the PDF.
DIRECT LINK: CLICK HERE
Hello,
The National Science Olympiad is conducted by the Science Olympiad Foundation for the students from classes 9-12.
The aim of the examination is inculcate a passion for science in the students. The duration of examination is 1 hour.
Check out the official website of Careers360 for the answer keys of all sets. Link below.
https://school.careers360.com/articles/nso-answer-key
Thank you.
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