Lesson 2 of 4 · Form 3 Chemistry
Organic chemistry I: hydrocarbons
20 min
Homologous series
Same general formula, similar chemical properties, each member differs by -CH₂-.
Alkanes (CₙH₂ₙ₊₂)
Saturated (single C-C bonds). Methane CH₄, ethane C₂H₆, propane C₃H₈, butane C₄H₁₀.
- Burn to give CO₂ and water.
- Substitution with chlorine in sunlight: CH₄ + Cl₂ → CH₃Cl + HCl.
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