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Chapter 13 of 18
Chapter Summary

Carbon : An important element

Maharashtra Board · Class 9 · Science

Summary of Carbon : An important element for Maharashtra Board Class 9 Science. Key concepts, important points, and chapter overview.

43 questions22 flashcards5 concepts

Overview

Carbon is a non-metallic element that is abundantly found in nature and forms the basis of all organic compounds. It is one of the most important elements on Earth, found in both free and combined states. Carbon has the unique ability to form long chains and complex structures, making it essential f

Key Concepts

Carbon has atomic number 6

Carbon has atomic number 6, atomic mass 12, electron configuration 2,4, and valency 4. It occurs freely as diamond and graphite, and in combined form

Carbon exists in different physical forms

Carbon exists in different physical forms with same chemical properties. Crystalline forms include diamond (hardest natural substance, 3D structure),

Compounds containing only carbon and hydrogen

Compounds containing only carbon and hydrogen atoms. Saturated hydrocarbons have single bonds (like methane CH₄, ethane C₂H₆), while unsaturated hydro

Molecular mass 44

Molecular mass 44, colorless, odorless gas. Prepared from CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂. It's denser than air, turns limewater milky, doesn't suppo

Molecular mass 16

Molecular mass 16, colorless gas found in natural gas (87%), biogas, and marshy places. Burns with blue flame: CH₄ + 2O₂ → CO₂ + 2H₂O + heat. Undergoe

Learning Objectives

  • Understand the occurrence and properties of carbon in nature
  • Learn about different allotropes of carbon including diamond, graphite, and fullerene
  • Study the structure and properties of hydrocarbons
  • Explore the properties, preparation, and uses of carbon dioxide
  • Understand methane gas, its properties, and applications including biogas

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Frequently Asked Questions

What are the important topics in Carbon : An important element for Maharashtra Board Class 9 Science?

Carbon : An important element covers several key topics that are frequently asked in Maharashtra Board Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.

Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

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