9701/21/M/J/22 · Chemistry May/June 2022 Paper 21
4 questions, 60 marks. Each one links to its official mark scheme.
- Question 1 · 17 marks · Electrons, energy levels and atomic orbitals, Thermal decomposition, Similarities and trends in the properties of the Group 2 metals, magnesium to barium, and their compounds, Group 2 trends and solubility, Particles in the atom and atomic radius, Relative masses of atoms and molecules, Mass spectrometry, Isotopes, Reactions of Period 3 elements, Enthalpy change definitions, Temperature and activation energy
- Question 2 · 12 marks · Covalent and dative bonding, Nitrogen oxides and pollution, Nitrogen and ammonia, Brønsted–Lowry theory of acids and bases
- Question 3 · 17 marks · Finding isomerism in a structure, Oxidising alkenes, Reduction and nucleophilic addition, Electrophilic addition, Addition polymers and the bromine test, Oxidising alcohols, Combustion, halogenation and sodium, Making halogenoalkanes
- Question 4 · 14 marks · Formulas, Carboxylic acids, Limiting reagents and stoichiometry, Tests for carbonyls, Iodoform test and acidity, Structural isomerism, Mass spectrometry
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.