Organic ChemistryIntroduction

The Simplest Carbon Family

Part of AlkanesGCSE Chemistry

This introduction covers The Simplest Carbon Family within Alkanes for GCSE Chemistry. Topic 38: Alkanes It is section 1 of 12 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 1 of 12

Practice

20 questions

Recall

0 flashcards

⛓️ The Simplest Carbon Family

Carbon is special. It can bond to four other atoms at once, and it loves bonding to other carbon atoms. This lets it form chains — short chains, long chains, branched chains, rings...

The alkanes are the simplest family of carbon compounds. They're like the "basic" hydrocarbons — just carbon and hydrogen, with only single bonds. Methane (natural gas), propane (BBQ gas), and petrol are all alkanes!

🔗 The Chain Link Analogy

Alkanes are like a chain of people holding hands! Each carbon (person) can hold hands with 4 others. In a chain, they hold two carbons and fill the rest with hydrogens. The longer the chain, the stronger the forces between molecules — that's why longer alkanes have higher boiling points (they "stick together" more)!

Keep building this topic

Read this section alongside the surrounding pages in Alkanes. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Alkanes

What is the general formula for the alkane homologous series?

  • A. CₙH₂ₙ
  • B. CₙH₂ₙ₋₂
  • C. CₙHₙ
  • D. CₙH₂ₙ₊₂
1 markfoundation

Explain why the boiling point of alkanes increases as the chain length increases.

3 marksstandard

Quick Recall Flashcards

Formula for ethane?
C₂H₆
Formula for butane?
C₄H₁₀

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