9701/22 · Oct/Nov 2023
AS Level Structured Questions · 60 marks · 4 questions
- Question 113 marks
Atomic radius and melting points from silicon to sulfur, electrons in subshells, ionisation energies, and how Period 3 chlorides react with water.
- Question 215 marks
Forming N₂O₃ from NO and NO₂: rates approaching equilibrium, calculating Kp, nitrogen oxides in the atmosphere, and making magnesium nitrate.
- Question 319 marks
Making phosphoric acid, its use as an acid and catalyst in organic reactions, hydrating propene, and hydrolysing organophosphate esters.
- Question 413 marks
Optical isomerism and naming lactic and pyruvic acids, their reactions, and two three-step syntheses.