9701/21/O/N/17 · Chemistry October/November 2017 Paper 21
3 questions, 60 marks. Each one links to its official mark scheme.
- Question 1 · 22 marks · Covalent and dative bonding, Bond energies, Temperature and activation energy, Le Chatelier's principle, Kc and Kp
- Question 2 · 14 marks · Ionisation energy, Period 3 chlorides with water
- Question 3 · 24 marks · Organic synthesis, SN1 and SN2, Structural isomerism, Cis/trans isomerism, Finding isomerism in a structure, Electrophilic addition, Optical isomerism
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.