Science (Textbook for Class X)
Chapter 1: Chemical Reactions and EquationsI: Chemical Substances - Nature and Behaviour
- Chapter opener
- Chemical Equations
- Types of Chemical Reactions
- Have You Observed the Effects of Oxidation Reactions in Everyday Life?
- What you have learnt (chapter summary)
- Group Activity
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 2: Acids, Bases and SaltsI: Chemical Substances - Nature and Behaviour
- Chapter opener
- Understanding the Chemical Properties of Acids and Bases
- What do all Acids and all Bases have in Common?
- How Strong are Acid or Base Solutions?
- More about Salts
- What you have learnt (chapter summary)
- Group Activity
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 3: Metals and Non-metalsI: Chemical Substances - Nature and Behaviour
- Physical Properties
- Chemical Properties of Metals
- How do Metals and Non-metals React?
- Occurrence of Metals
- Corrosion
- What you have learnt (chapter summary)
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 4: Carbon and its CompoundsI: Chemical Substances - Nature and Behaviour
- Chapter opener
- Bonding in Carbon – The Covalent Bond
- Versatile Nature of Carbon
- Chemical Properties of Carbon Compounds
- Some Important Carbon Compounds – Ethanol and Ethanoic Acid
- Soaps and Detergents
- What you have learnt (chapter summary)
- Group Activity
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 5: Life ProcessesII: World of Living
- What are Life Processes?
- Nutrition
- Respiration
- Transportation
- Excretion
- What you have learnt (chapter summary)
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 6: Control and CoordinationII: World of Living
- Animals – Nervous System
- Coordination in Plants
- Hormones in Animals
- What you have learnt (chapter summary)
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 7: How do Organisms Reproduce?II: World of Living
- Do Organisms Create Exact Copies of Themselves?
- Modes of Reproduction Used by Single Organisms
- Sexual Reproduction
- What you have learnt (chapter summary)
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 8: HeredityII: World of Living
- Accumulation of Variation during Reproduction
- Heredity
- What you have learnt (chapter summary)
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 9: Light – Reflection and RefractionIII: Natural Phenomena
- Reflection of Light
- Spherical Mirrors
- Refraction of Light
- What you have learnt (chapter summary)
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 10: The Human Eye and the Colourful WorldIII: Natural Phenomena
- The Human Eye
- Defects of Vision and their Correction
- Refraction of Light through a Prism
- Dispersion of White Light by a Glass Prism
- Atmospheric Refraction
- Scattering of Light
- What you have learnt (chapter summary)
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 11: ElectricityIV: Effects of Current
- Electric Current and Circuit
- Electric Potential and Potential Difference
- Circuit Diagram
- Ohm’s Law
- Factors on which the Resistance of a Conductor Depends
- Resistance of a System of Resistors
- Heating Effect of Electric Current
- Electric Power
- What you have learnt (chapter summary)
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 12: Magnetic Effects of Electric CurrentIV: Effects of Current
- Chapter opener
- Magnetic Field and Field Lines
- Magnetic Field due to a Current-carrying Conductor
- Force on a Current-carrying Conductor in a Magnetic Field
- Domestic Electric Circuits
- What you have learnt (chapter summary)
Official NCERT PDF (English) · हिंदी माध्यम PDF
Chapter 13: Our EnvironmentV: Natural Resources
- Chapter opener
- Eco-system – What are its Components?
- How do our Activities Affect the Environment?
- What you have learnt (chapter summary)
Official NCERT PDF (English) · हिंदी माध्यम PDF
Free sample questions
Three sample questions with answers. Full explanations — and the rest of the question bank — are free to read after you sign up.
Q1. A tall pea plant of genotype Tt is crossed with a short plant (tt). The progeny will be
- half tall and half short
- three-fourths tall and one-fourth short
- all tall
- all short
Show answer
Correct answer: A. half tall and half short
🔒 The full explanation is free to read after you sign up →
Q2. Assertion (A): Ethanol reacts with sodium metal to liberate hydrogen gas. Reason (R): Ethanol is a strong acid like hydrochloric acid.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Show answer
Correct answer: C. A is true but R is false.
🔒 The full explanation is free to read after you sign up →
Q3. Which of the following lists the metals in the correct order of decreasing reactivity?
- Mg > Na > Zn > Cu
- Zn > Mg > Cu > Na
- Cu > Zn > Mg > Na
- Na > Mg > Zn > Cu
Show answer
Correct answer: D. Na > Mg > Zn > Cu
🔒 The full explanation is free to read after you sign up →
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Chapter lists follow the NCERT textbooks as available to us; textbooks are revised from time to time, so confirm on ncert.nic.in.
