CBSE Class 10 Science Question Paper 2026 (Set-1, Code 31/1/1)
CBSE Class 10 Science Question Paper 2026 Set-1 (code 31/1/1 ) was conducted on 25 February 2026 from 10:30 AM to 1:30 PM . The paper had 35 questions worth 80 marks and ran for three hours.
CBSE Class 10 Science Question Paper 2026 — key details
| Item | Detail |
|---|---|
| Exam date | 25 Feb 2026 |
| Paper code | 31/1/1 (Set-1) |
| Questions | 35 |
| Total marks | 80 |
| Duration | 10:30 AM–1:30 PM (3 hours) |
| Paper pattern | Part A compulsory; Part B has two options (Option I: Physics, Option II: Chemistry) |
Part A was compulsory for all candidates. In Part B you had to choose only one option — Option I (Physics) or Option II (Chemistry). Question types included MCQs, assertion–reason, diagram-based tasks and numerical problems.
CBSE Class 10 Science Question Paper 2026 — student reaction and difficulty
Students who took the exam rated the Science paper as moderately easy. That was the consistent feedback in several classrooms and exam centres. If you found some numerical or diagram questions time-consuming, you were not alone.
Answer key, detailed solutions and downloads
Detailed solutions and an answer key for Set-1 are available for download from the official sources. These include stepwise explanations for MCQs, assertion–reason items and long-answer questions. If you want to cross-check your answers quickly, download the official answer key and match your responses against the model solutions.
What you should do next
If you have finished checking your answers, focus on the weak areas flagged by the solutions. Practice more numerical and diagram questions under timed conditions to improve speed. Keep the paper code (31/1/1) handy when comparing with other sets or official uploads.
Author: Bhaskar Das, Arts and Board Exam Specialist. Article updated on 27 March 2026 .
FAQs
How many questions are in the paper?
35 questions.
What is the total mark for the paper?
80 marks.
When was the exam held?
25 February 2026, 10:30 AM to 1:30 PM .
How is Part B structured?
Part B offers two options. You must attempt only one option: Option I (Physics) or Option II (Chemistry).
Is an answer key available?
Yes. Detailed solutions and an official answer key are available for download from the exam authority's official portal.
Who authored this summary and when was it updated?
Bhaskar Das. Updated on 27 March 2026 .