2019 MI Prelim H2 Chem P1 QP

Class Adm No Candidate Name: This question paper consists of 15 printed pages and 1 blank page. 2019 Preliminary Exams Pre-University 3 H2 CHEMISTRY 9729/01 Paper 1 Multiple Choice 24 Sept 2019 1 hour Additional materials: Multiple Choice Answer Sheet Data Booklet READ THESE INSTRUCTIONS FIRST Do not turn over this question paper until you are told to do so Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, class and admission number in the spaces provided at the top of this page and on the Multiple Choice Answer Sheet provided. There are thirty questions on this paper. Answer ALL 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 provided. Read the instructions on the Multiple Choice Answer Sheet very carefully. 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 question paper. The use of an approved scientific calculator is expected, where appropriate. FOR EXAMINER’S USE TOTAL (30 marks)

2 For each question there are four possible answers, A, B, C, and D. Choose the one you consider to be correct. 1 Which of the following contain one mole of the stated particles? 1 H+ ions in 1 dm3 of 0.5 mol dm-3 H2SO4(aq) 2 atoms in 6 dm3 of SO3(g) at room temperature and pressure 3 electrons in 64.1 g of SO2 4 neutrons in 1.6 g of 32S8 A 1 and 2 only B 2 only C 1 and 3 only D 1, 2, 3 and 4 2 Incomplete combustion of y dm3 of propanol gas yielded a mixture of carbon dioxide and carbon monoxide in the ratio of 2:1, together with water vapour. What is the volume of oxygen consumed? A 3.5y dm3 B 4y dm3 C 4.5y dm3 D 5y dm3 3 The redox reaction between potassium manganate(VII) and MnSO4 gives MnO2 as the only manganese-containing product. How many moles of MnSO4 react with one mole of potassium manganate(VII) in this reaction? A 0.5 B 1 C 1.5 D 2

3 [Turn over 4 The ion Z2+ has 12 electrons and 15 neutrons. Which of the following statements is true? A In an electric field, the ion Z2+ will be deflected at a smaller angle than that of Mg2+. B The first ionisation energy of element Z is lower than that of the Group 13 element in the same period as Z. C The chloride of Z formed is expected to have a higher melting point than MgCl2. D Element Z is isoelectronic with neon. 5 Consider the following four compounds. 1 CH3CH2CH2CH3 2 CH3CH2CH2OH 3 CH3CH2Cl 4 (CH3)3CH What is the order of increasing boiling point of the compounds? A 1 < 4 < 3 < 2 B 2 < 3 < 4 < 1 C 4 < 1 < 2 < 3