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Carbon and its Compounds

Gujarat Board · Class 10 · Science

Complete topic list for Carbon and its Compounds in Gujarat Board Class 10 Science. Key concepts, sub-topics, and what to focus on for board exams.

59 questions25 flashcards5 concepts

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A diagram showing the atomic structure of carbon, specifically its nucleus with protons and neutrons, and the distribution of its 6 electrons in the K and L shells, highlighting the 4 valence electron
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4 Topics · Gujarat Board Class 10 Science

Topics in Carbon and its Compounds

1

4.1 Bonding in Carbon – The Covalent Bond

  • Carbon has atomic number 6 and electronic configuration 2, 4 — so it has 4 valence electrons.
  • Carbon cannot form C⁴⁺ (requires too much energy) or C⁴⁻ (nucleus cannot hold 10 electrons) ions.
  • Carbon achieves noble gas configuration by SHARING electrons — forming COVALENT BONDS.
2

4.2 Versatile Nature of Carbon

  • Two special properties make carbon form millions of compounds: (1) CATENATION and (2) TETRAVALENCY.
  • CATENATION: Carbon's unique ability to form bonds with OTHER carbon atoms, creating long chains, branched chains, and rings.
  • TETRAVALENCY: Carbon has valency of 4, so it can bond with 4 other atoms (C, H, O, N, S, Cl, etc.).
3

4.3 Chemical Properties of Carbon Compounds

  • COMBUSTION: Carbon compounds burn in oxygen/air to produce CO₂ and H₂O along with heat and light. These are oxidation reactions.
  • Saturated hydrocarbons burn with a CLEAN BLUE FLAME (complete combustion with sufficient air).
  • Unsaturated hydrocarbons burn with a YELLOW SOOTY FLAME (incomplete combustion, carbon particles deposited).
4

4.4 Important Carbon Compounds – Ethanol and Ethanoic Acid

  • ETHANOL (C₂H₅OH): Commonly called alcohol. Liquid at room temperature. Boiling point = 351 K.
  • Ethanol is the active ingredient in all alcoholic drinks. It is also used as a solvent in medicines (tincture iodine, cough syrups).
  • Ethanol is completely miscible with water (soluble in all proportions).

Key Concepts

A covalent bond is formed whenTetravalency means carbon has the abilityCatenation is the unique abilitySaturated hydrocarbons are carbon compounds containingUnsaturated hydrocarbons contain one or more

Frequently Asked Questions

What are the important topics in Carbon and its Compounds for Gujarat Board Class 10 Science?
Key topics in Carbon and its Compounds include Shows why carbon forms covalent bonds instead of ionic bonds and how it achieves noble gas configuration through electron sharing, Comparison of single, double, and triple bonds showing their characteristics and examples, Shows how carbon's tetravalency allows it to form bonds with multiple atoms and elements, creating diverse compounds. These are the concepts Gujarat Board Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Carbon and its Compounds — Gujarat Board Class 10 Science?
Understand the core concepts first, then work through the 59 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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