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Polymerisation

Chemistry Learning, O and A level Chemistry Courses / By

🔹 1. What is Addition Polymerisation? Addition polymerisation is a type of polymerisation in which unsaturated monomers (usually alkenes) join together without the elimination of any small molecule. ➡️ Key Condition: 🔹 2. Examples of Addition Polymers ✅ Poly(ethene) (commonly known as Polythene) Equation:  n CH₂=CH₂ → –[CH₂–CH₂]–ₙ ✅ Poly(chloroethene) or PVC (Polyvinyl chloride) Equation: […]

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Nitrogen and sulfur

Chemistry Learning, O and A level Chemistry Courses / By

1. Lack of Reactivity of Nitrogen (N₂) 2. Ammonia and Ammonium Ion (a) Basicity of Ammonia (NH₃) – Brønsted–Lowry Theory (b) Structure and Formation of the Ammonium Ion (NH₄⁺) (c) Displacement of Ammonia from Ammonium Salts 3. Oxides of Nitrogen: Natural and Man-made Occurrence ⚛️ Main Oxides: 🔹 Natural Sources: 🔹 Man-made Sources: 🔧 Catalytic

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