Copy of VS 2024 Sec 4 Chem Prelim Paper 2

1 ©Victoria School 24/S4PRELIM/6092/2 Class Register Number Name 6092/02 CHEMISTRY 24/S4Prelim/6092/2 PAPER 2 Tuesday 27 August 2024 1 hour 45 minutes VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA SCHOOL VICTORIA VICTORIA SCHOOL PRELIMINARY EXAMINATION SECONDARY FOUR 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 a 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 25. The use of an approved scientific calculator is expected, where appropriate. This question paper consists of 25 printed pages, including the cover page. [Turn Over Section A / 70 Section B / 10 Total / 80 Deductions Presentation Significant Figures Units

2 ©Victoria School 24/S4PRELIM/6092/2 Section A (70 marks) Answer all the questions in this section in the spaces provided. A1 Read the clues below to fill in the crossword puzzle. The first one has been done for you. Across (1) inventor of the Periodic Table (2) the particle formed when an atom with proton number 9 is ionised Down (3) the reaction of steam with ethene is an example of an ……………………………reaction (4) steel is an example of an …………………………… (5) the method used to separate a solid sample of iodine and sodium chloride (6) pure substances have a …………………………… melting point [5] [Total:5]

3 ©Victoria School 24/S4PRELIM/6092/2 A2 Some elements burn in air to form oxides. In an experiment, sodium was burnt in a sealed container. The products were then added to a flask containing a solution of Universal Indicator. In a second experiment, the reaction was repeated with burning carbon instead of sodium. (a) State what you would observe with the Universal Indicator in each experiment. experiment using sodium: ……………………………………………………………………… experiment using carbon: ……………………………………………………………………[1] (b) Sodium oxide forms during the first experiment. Draw a ‘dot-and-cross’ diagram to show the arrangement of