Chapter 4 of the NCERT Class 10 Science textbook, Carbon and Its Compounds, is one of the most interesting and scoring chapters in the Chemistry syllabus. It explains the unique behaviour of carbon, its versatile bonding properties, and introduces students to organic chemistry. This chapter covers topics like covalent bonding, hydrocarbons, functional groups, homologous series, and important carbon compounds like ethanol and ethanoic acid. It also explains chemical properties of these compounds and introduces students to the basics of soaps and detergents.
I decided to write about this chapter because many students find it challenging at first, especially when trying to remember different organic reactions and compound structures. But with the right explanation and regular revision, this chapter becomes easy and even enjoyable. Understanding this chapter not only helps in board exams but also builds a strong foundation for higher-level chemistry in Classes 11 and 12. Having a PDF copy of this chapter makes it easier to revise anytime, anywhere. Whether you’re making notes or practising reaction mechanisms, having direct access to the textbook helps a lot. That’s why I’ve made this resource available for all Class 10 students.
Topics Covered in Chapter 4: Carbon and Its Compounds
Here are the key areas covered in the chapter:
- Introduction to carbon and its tetravalency
- Covalent bonding in carbon and other elements
- Saturated and unsaturated carbon compounds
- Chains, branches, and rings in carbon compounds
- Homologous series and functional groups
- Nomenclature of organic compounds
- Chemical properties of carbon compounds:
- Combustion
- Oxidation
- Addition reactions
- Substitution reactions
- Important compounds:
- Ethanol – properties and uses
- Ethanoic acid – properties and reactions
- Soaps and detergents – their formation and cleaning action
Each section includes clear diagrams, examples, and intext activities to reinforce understanding.
Why This Chapter Is Important
- High-weightage in board exams with both theory and reaction-based questions
- Builds a foundation for organic chemistry in Classes 11 and 12
- Helps with lab-based questions and practical understanding
- Frequently asked in case-based and MCQ formats in the board exam
Many students tend to just memorise the reactions, but it’s better to understand how carbon bonds behave and why these reactions occur the way they do. That’s the kind of clarity NCERT books aim to give.
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Click here to download NCERT Class 10 Science Chapter 4: Carbon and Its Compounds PDF

















