CBSE 2026 Science Question Paper for Class 10

About this paper

This is the CBSE Class 10 Science board paper from 2026, Q.P. code 31/5/2 (Series KL5NM, Set 2), printed in Hindi and English. It carries 80 marks over three hours and has 39 compulsory questions in three sections that must be answered separately: Biology for 30 marks, Chemistry for 25 and Physics for 25. The paper mixes multiple-choice, very short, short and long answers with assertion-reason items and case-based questions of 4 marks, each with three sub-parts. There is no overall choice. A separate paper is provided for visually impaired candidates. This copy has questions only.

Exam

CBSE Class 10

Subject

Science

Year

2026

Paper code

31/5/2

Maximum marks

80

Time allowed

3 hours

Questions

39

Pages

32

Answers included

No, questions only

Paper pattern

• Section A — Biology

  30 marks

  Questions 1–16, including one-mark MCQs, assertion-reason, a leaf diagram and a case on the kidneys

• Section B — Chemistry

  25 marks

  Questions 17–29, from one-mark items on homologous series and acids to a longer question on alcohols

• Section C — Physics

  25 marks

  Questions 30–39, including the eye, lenses, a compass assertion and a lens numerical

Topics covered

• How do organisms reproduce
• Life processes
• Our environment
• Carbon and its compounds
• Acids, bases and salts
• Metals and non-metals
• The human eye
• Light: reflection and refraction
• Magnetic effects of current

Questions from this paper

1. In human beings, the implantation of a fertilised egg takes place in the oviduct, cervix, uterus or vagina.
2. Yeast multiplies by fragmentation, binary fission, multiple fission or budding.
3. Identify the part that controls the closing and opening of the stomatal pore in leaves.
4. Which set does not belong to the same homologous series: CH₄ and C₄H₁₀, C₂H₆ and C₃H₈, C₃H₈ and C₅H₁₂, or C₄H₈ and C₅H₁₂?
5. To restore clear vision when the eyeball has become smaller, a person is advised to use a converging, diverging, bifocal or cylindrical lens.
6. An object is placed at a distance of 30 cm in front of a convex lens of a given focal length.