2024 Fuhua Sec 4E Chemistry P2

Candidate Name: Class: Index No.: FUHUA SECONDARY SCHOOL Secondary Four Express PRELIMINARY EXAMINATION 2024 4E Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Seco ndary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fu hua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Seco ndary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuh ua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Secondary School Fuhua Seco ndary School CHEMISTRY 6092/2 Paper 2 DATE 16 August 2024 TIME 1045 - 1230 DURATION 1 hour 45 minutes READ THESE INSTRUCTIONS FIRST Write your name, class and index number on all the work you hand in. Write in dark blue or black pen. You may use an HB pencil for any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid. Section A Answer all questions. Write your answers in the spaces provided. Section B Answer one question. Write your answers in the spaces provided. The number of marks is given in brackets [ ] at the end of each question or part question. A copy of the Periodic Table is printed on page 24. The use of an approved scientific calculator is expected, where appropriate. PARENT’S SIGNATURE FOR EXAMINER’S USE Section A Section B Total /70 /10 /80 This document consists of 23 printed pages and 1 blank page.

2 Section A Answer all questions. 1 Fig. 1.1 shows ‘dot -and-cross’ diagrams for molecule 1, 2 and 3 that contain elements from Period 2 and 3 of the Periodic Table. The elements are represented by the letters M, Q, R, T and Z. Each diagram shows outer electrons only. molecule 1 molecule 2 molecule 3 Fig. 1.1 (a) Which elements are in Group 17? [1] (b) What is the formula of the compound formed between Z and T? [1]

3 (c) (i) Draw a ‘dot-and-cross’ diagram to show the bonding of the compound formed between element P and R. [2] (ii) Draw a ‘dot-and-cross’ diagram to show the bonding of the compound formed between magnesium and element M. [2] (d) The following are some statements about the substances in Fig. 1.1. Put a tick (✓) in one box in each row to show which statements are true and which are false. true false Molecule 3 has lower boiling point then molecule 2. Molecule 3 is a saturated organic compound. Only element Z reacts with oxygen to form acidic oxide. Elements P and T are in Group 16. [2] [Total: 8]

4 2 Three experiments were carried out to measure the rate of reaction bet