The Science Olympiad Foundation has released the ISO Class 11 Syllabus 2026 on its official website at sofworld.org. The SOF ISO syllabus includes three sections, i.e, Achievers Section, Physics & Chemistry, and Mathematics/Biology. The ISO Class 11 syllabus 2026 will help students understand the important topics, exam pattern and marking scheme for Level 1 and Level 2 exams. Students must study the entire syllabus to prepare well for the SOF ISO exam. The ISO Class 11 Level 1 and Level 2 exams follow a multiple-choice question format, which includes 50 questions of 60 marks in total. The ISO Level 1 exam will be conducted on three dates, i.e. October 30, November 19 and December 3rd 2026.
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Particulars | Details |
Exam name | SOF International Science Olympiad (ISO) |
Conducting Body | Science Olympiad Foundation |
Exam level | Level 1 and Level 2 |
Mode of examination | Offline |
Duration | 1 hour |
Number of questions | 50 questions |
Total marks | 60 marks |
Question type | Multiple Choice questions |
Official website | sofworld.org |
The SOF ISO Class 11 syllabus 2026 is divided into three different sections that students need to prepare well for the Olympiad examination. Take a look at the ISO Class 11 section-wise detailed syllabus below.
Section | Syllabus |
Section 1 | Physics:
|
Chemistry:
| |
Section B | Higher Order Thinking Questions - Syllabus as per Section – 1. |
Section C | Mathematics:
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OR | |
Biology:
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The SOF proposes the same exam pattern for ISO Level 1 and Level 2 examinations. Look at the table below to know the ISO exam question paper structure.
Section | Number of questions | Marks per questions | Total marks |
Section – 1: Physics & Chemistry | 25 | 1 | 25 |
Section – 2: Achievers Section | 5 | 3 | 15 |
Section – 3: Mathematics/Biology | 20 | 1 | 20 |
Grand Total | 50 | 60 |
The SOF ISO Class 11 Level 1 exam paper will have 60% questions from the current 11th class syllabus, and the remaining 40% questions will be from the previous class syllabus. The ISO Level 2 exam questions will be from the current 11th class syllabus only. The questions in the Achievers section will be from the current class only.
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