CBSE Class 10 science exam 2025: CBSE Class 10 Science exam for 2025, is scheduled for February 20. It will test student¡¯s theoretical knowledge and problem-solving skills in physics, chemistry, and biology. The exam is of 80 marks to be completed in 3 hours.?
The subject covers Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non-Metals, Carbon and its Compounds, Periodic Classification of Elements, Life Processes, Control and coordination, Heredity and Evolution, Light - Reflection and Refraction, Electricity, Magnetic Effects of Electric Current, Sources of Energy, and Our Environment.?
Also Read:?CBSE board exams twice a year? Education Minister to release draft plan soon
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10 Important MCQ Questions for CBSE class 10 science exam 2025
Below are 30 multiple-choice questions (MCQs) highly expected to come today in the CBSE Class 10 Science exam 2025, on 20 February, 2025:
1. What is the chemical formula of water?
A) H
B) HO
C) H2O
D) O2
Solution: C) H2O
2. Which of the following is a non-metal?
A) Iron
B) Copper
C) Oxygen
D) Silver
Solution: C) Oxygen
3. What is the SI unit of force?
A) Watt
B) Newton
C) Joule
D) Pascal
Solution: B) Newton
4. Which of the following is a greenhouse gas?
A) Oxygen
B) Nitrogen
C) Carbon dioxide
D) Hydrogen
Solution: C) Carbon dioxide
5. What is the chemical symbol for sodium?
A) S
B) Na
C) So
D) N
Solution: B) Na1
6. The laws of reflection hold true for:
(a) plane mirrors only
(b) concave mirrors only
(c) convex mirrors only
(d) all reflecting surfaces
7. When an object is kept within the focus of a concave mirror, an enlarged image is formed behind the mirror. This image is
(a) real
(b) inverted
(c) virtual and inverted
(d) virtual and erect
8. A student plots V-I graphs for three samples of nichrome wire with resistances R1, R2 and R3. Choose from the following statements that hold true for this graph.
(a) R1 = R2 = R3
(b) R1 > R2 > R3
(c) R3 > R2 > R1
9. The electronic configuration of an element is found to be 2, 4. How many bonds can one carbon atom form in a compound?
(a) 1
(b) 2
(c) 4
(d) 6
Correct Answer: Option (c)
10. The following chemical reaction shows the addition of chlorine to methane in the presence of sunlight: CH4 + Cl4 ¡ú X. What is likely to be the product of the reaction represented by ¡°X¡±?
(a) CH4+ H2SO4
(b) CH3Cl + HCl
(c) CHCl3 + HCl
(d) CH3Cl + H2SO4
Correct Answer: Option (b)
20 Repeated Questions for CBSE class 10 science exam 2025
Below are the 20 Repeated Questions for CBSE class 10 science exam 2025:?
Physics
- What is a solenoid? Explain its properties.
- What are the defects of vision? Discuss their causes and corrections.
- State Fleming¡¯s Left-Hand Rule. Provide its applications.
- State Joule¡¯s Law of heating. How does it apply in practical scenarios?
Chemistry
- Define redox reactions. Provide examples and explain their significance.
- What is the functional group of carbon compounds? Discuss its importance in organic chemistry.
- Explain micelle formation in water. What role does it play in detergency?
- Describe the types of chemical reactions. Give examples for each type.
Biology
- What is a reflex arc? Describe its components and functioning.
- Explain double circulation in humans. Why is it important?
- What are plant hormones? Discuss their functions and types.
- Describe the process of photosynthesis. What are the key factors affecting it?
Additional VVI Questions for Today's Class 10 Science Exam
- What are the laws of reflection? How do they apply to mirrors?
- Discuss the pH scale and its significance in everyday life.
- What is the role of hemoglobin in the human body?
- Explain Mendel¡¯s laws of inheritance with examples.
- What is anaerobic respiration? Compare it with aerobic respiration.
- Describe the structure and function of neurons in the nervous system.
- What are ionic compounds? Discuss their properties and uses.
- Explain the concept of biodiversity and its importance for ecosystems.
Important Questions for CBSE class 10 science exam 2025?
Below are some important questions for the CBSE Class 10 Science Exam 2025:
Chapter-wise Important Questions:
- Chemical Reactions & Equations: Types of chemical reactions and balancing equations.
- Acids, Bases & Salts: pH scale and its applications, properties of acids and bases
- Metals & Non-Metals: Properties of ionic compounds, corrosion and its prevention
- Carbon & Its Compounds: Covalent bonding, soap vs. detergents, functional groups, and homologous series
- Life Processes: Functions of the heart, nutrition in plants and animals
- Control & Coordination: Reflex actions, functions of hormones, control and coordination in plants
- How do Organisms Reproduce?: Binary fission, differences between sexual and asexual reproduction
- Heredity & Evolution: Mendel¡¯s laws, monohybrid and dihybrid crosses
- Light ¨C Reflection & Refraction: Laws of reflection, ray diagrams for convex and concave mirrors
- Human Eye & Colorful World: Defects of vision, atmospheric refraction
- Electricity: Ohm¡¯s law and its applications, factors affecting resistance
- Magnetic Effects of Electric Current: Fleming¡¯s Left-Hand Rule, working of an electric motor, magnetic field patterns
Important Science Chapter For CBSE Class 10th Board Exam
Below are some important chapters for the CBSE Class 10 Science Board Exam:
Physics:
- Light¡ªReflection and Refraction
- The Human Eye and the Colourful World
- Electricity
- Magnetic Effects of Electric Current
- Sources of Energy
Chemistry:
- Chemical Reactions and Equations
- Acids, Bases, and Salts
- Metals and Non-Metals
- Carbon and Its Compounds
- Periodic Classification of Elements
Biology:
- Life Processes
- Control and Coordination
- Heredity and Evolution
- How do organisms reproduce?
- Our Environment
Last-Day Strategy for CBSE class 10 science exam 2025
Students, the CBSE Science exam 2025 has been scheduled for February 20, 2025. Below are last-day exam strategies to help students prepare best before the CBSE Class 10 Science exam 2025:
- Choose Important Topics: Revise key concepts instead of memorizing. Pay attention to important chapters like Chemical Substances - Nature and Behaviour, World of Living, Natural Phenomena, Effects of Current, and Natural Resources. Try to relate these topics to real-life examples.
- Revise with Short Notes: Go through brief and clear notes for a quick revision. Focus on important formulas, concepts, and diagrams.
- Solve Above Mentioned Questions: Also you can solve the official CBSE Class 10 Science sample paper.
- Don¡¯t Panic/Stress Just Care of Your Health: Eat nutritious food, stay hydrated, and get proper rest. A healthy body and a fresh mind will help you perform better.
- Plan Your Exam Time Wisely: Read questions carefully, manage time well, and write answers neatly to score better.
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