Chemistry 0620/41 Oct Nov 2024 | Cambridge IGCSE Past Papers With Mark Scheme

1. Chemical & Physical Processes | Classification of reactions including combustion, diffusion, melting, neutralization, and thermal decomposition.

2. Atomic Structure & Periodic Table | Definitions of nucleon number and isotopes, electronic configurations, calculation of relative atomic mass.

3. Preparation & Properties of Copper(II) Sulfate | Symbol equation for reaction with sulfuric acid, crystallization process, electrolysis behavior with graphite and copper electrodes.

4. Thermal Decomposition of Magnesium Nitrate | Oxidation number changes, gas volume calculations, ionic and covalent bonding representations.

5. Hydrogen & Organic Chemistry | Fuel cell advantages and disadvantages, fractional distillation and cracking, calculation of hydrogen atoms in methyl propanoate.

6. Natural Polyamides & Chromatography | Polymerization types, separation of amino acids, Rf value determination, visibility enhancement of colorless spots.