9701/23/M/J/23 · Chemistry May/June 2023 Paper 23
6 questions, 60 marks. Each one links to its official mark scheme.
- Question 1 · 9 marks · Lattice structures, Metallic bonding, Relative masses of atoms and molecules, Mass spectrometry, Balancing redox equations, Oxidation and reduction, Electrons, energy levels and atomic orbitals
- Question 2 · 10 marks · Period 3 oxides and hydroxides, Reactions of Period 3 elements, Thermal decomposition, Oxidation numbers of oxides and chlorides, Period 3 chlorides with water
- Question 3 · 8 marks · Enthalpy change definitions, Limiting reagents and stoichiometry, Calorimetry, Carboxylic acids
- Question 4 · 10 marks · Some reactions of the halide ions, Physical properties of the Group 17 elements, Kc and Kp, Le Chatelier's principle
- Question 5 · 8 marks · Organic formulas and naming, Characteristic organic reactions, Making alcohols, Shapes of organic molecules; σ and π bonds, Organic synthesis
- Question 6 · 15 marks · Addition polymerisation, Reduction and nucleophilic addition, Dehydration and esterification, Infrared spectroscopy, Cis/trans isomerism, Optical isomerism, Primary and secondary amines, Combustion, halogenation and sodium, Nucleophilic substitution reactions
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.