ACSI 2022 P1 Final (QP)

Anglo-Chinese School (Independent) Year 6 Preliminary Examination 2022 INTERNATIONAL BACCALAUREATE DIPLOMA PROGRAMME CHEMISTRY HIGHER LEVEL PAPER 1 Monday 12th September 2022 1 hour Additional materials: Multiple choice answer sheet Soft clean eraser Soft pencil (type 2B recommended) INSTRUCTIONS TO CANDIDATES Do not open this booklet until you are told to do so. Write your Candidate number and the subject on the separate answer sheet provided. There are forty questions in this paper. Answer all the questions. For each question there are four possible answers, A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the multiple choice answer sheet. INFORMATION FOR CANDIDATES Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet. A copy of the periodic table is provided for reference on Page 2 of the examination paper. Calculators are not allowed to be used in this paper. This question paper consists of 16 printed pages, including the cover page.

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3 1. What mass, measured in g, of hydrogen is formed when 3 mol of aluminium react with excess hydrochloric acid according to the following equation? 2Al (s) + 6HCl (aq) → 2AlCl3 (aq) + 3H2 (g) A. 3.0 B. 4.5 C. 6.0 D. 9.0 2. The volume of an ideal gas at 27.0 °C is increased from 3.00 dm 3 to 6.00 dm 3. At what temperature, in °C, will the gas have the original pressure? A. 13.5 B. 54.0 C. 327 D. 600 3. Which describes the visible emission spectrum of hydrogen? A. A series of lines at regular intervals. B. A series of lines converging at lower energy. C. A series of lines converging at higher frequency. D. A series of lines converging at longer wavelength. 4. Which species have the same number of electrons? I S2− II Cl− III Ne A. I and II only B. I and III only C. II and III only D. I, II and III

4 5. Between which ionization energies of aluminium will there be the greatest difference? A. Between 1st and 2nd ionization energies B. Between 2nd and 3rd ionization energies C. Between 3rd and 4th ionization energies D. Between 4th and 5th ionization energies 6. Which one of the following consists of an acidic oxide, an amphoteric oxide and a basic oxide of period 3 elements? A. Al2O3, MgO and SiO2 B. Al2O3, Na2O and NO2 C. CaO, SO2 and ZnO D. Cl2O, SiO2 and P4O10 7. Which of the following properties of the halogens generally shows a decreasing trend from fluorine to iodine? I boiling point II electronegativity III oxidizing strength A. I and II only B. I and III only C. II and III only D. I, II and III 8. Which of these species cannot act as a ligand? A. CH4 B. CN− C. CO D. (CH3)3P

5 9. Which of the following molecules is pol