Grade 12 Term 3 test, second paper set, in the format of the G.C.E. (A/L) Chemistry Paper II. About 60% of the marks test this term's work (Units 7 to 10, with Units 9 and 10 tested lightly) and about 40% test Terms 1 and 2 (Units 1 to 6). Part A: answer all four structured questions (100 marks each). Parts B and C: answer four essay questions, two from each part (150 marks each). R = 8.314 J K⁻¹ mol⁻¹, molar volume of a gas at 273 K and 1.01 × 10⁵ Pa = 22.4 dm³ mol⁻¹. Relative atomic masses: H 1, C 12, N 14, O 16, Na 23, Mg 24, S 32, Cl 35.5, Ca 40, Fe 56, Zn 65.4. Each question has a model answer showing where the marks go.