2022 FHSS Chem Prelims P1

Candidate Name: Class Index No. FUHUA SECONDARY SCHOOL 4E Secondary Four Express Preliminary Examination 2022 Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Seconda ry Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhu a Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Seconda ry Fuhua Secondary CHEMISTRY 6092/01 Paper 1 Multiple Choice 31 August 2022 0800 – 0900 1 hour Additional Material: Optical Mark Recognition (OMR) READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, class, index number on the OMR and this question booklet. There are forty 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 separate OMR. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done on this paper. A copy of the Periodic Table is printed on page 14. The use of an approved scientific calculator is expected, where appropriate. Setter: Mdm Hia Soo Ching Vetters: Mr Elton Tan, Ms Choo Hui En, Ms Nur Hanis, Ms Veron Lee This question paper consists of 14 printed pages including this page. PARENT'S SIGNATURE FOR EXAMINER'S USE 40 ���

2 1 A student follows the rate of the reaction between marble chips, CaCO 3, and dilute hydrochloric acid. Which of the following set-ups can be used to measure the rate of reaction, together with a stopwatch? A 1 and 2 B 1 and 3 C 2 and 4 D 1, 2 and 4 2 A sample of a pure solid substance was heated until it turns completely gaseous. The graph below shows the heating curve obtained from the experiment. Which of the following statements is not correct? A At time interval AB, the average kinetic energy of the particles remains the same. B At time interval BC, the solid and liquid states are in equilibrium. C At time interval CD, heat is absorbed by the particles. D At time interval EF, the particles are moving rapidly in any direction. ���

3 3 The table below shows information about elements flerovium, Fl, and livermorium, Lv. Fl Lv proton number 114 116 nucleon number 289 292 Which of the following statements about the elements is correct? A A Lv2+ ion has the same number of electrons as a Fl atom. B A Fl 2+ ion has the same number of protons as an atom of Lv. C An atom of Fl has two more electrons as an atom of Lv. D An atom of Lv has one fewer neutron