9701/23/M/J/20 · Chemistry May/June 2020 Paper 23
5 questions, 60 marks. Each one links to its official mark scheme.
- Question 1 · 12 marks · Group 2 metal reactions, Thermal decomposition, Group 2 oxides, hydroxides and carbonates, Formulas, Oxidation numbers, Chemical periodicity of other elements
- Question 2 · 13 marks · Relative masses of atoms and molecules, Mass spectrometry, Metallic bonding, Electrons, energy levels and atomic orbitals, Solution concentrations, Limiting reagents and stoichiometry
- Question 3 · 12 marks · Characteristic organic reactions, Homogeneous and heterogeneous catalysts, Optical isomerism, Finding isomerism in a structure, Organic formulas and naming, Enthalpy change definitions, Formulas, Hess’s law
- Question 4 · 12 marks · Alkanes, Oxidising alkenes, Electrophilic addition, Shapes of organic molecules; σ and π bonds
- Question 5 · 11 marks · Making alkenes, Dehydration and esterification, Cis/trans isomerism, Organic formulas and naming, Iodoform test and acidity, Organic synthesis
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.