2025 Christ Church Prelim 2025 P1 QP

CHR 2025/Chemistry 6092/01/O/25 [Turn over CHRIST CHURCH SECONDARY SCHOOL 2025 PRELIMINARY EXAMINATION SECONDARY FOUR EXPRESS CHEMISTRY 6092/01 Paper 1 26 August 2025 1 hour Candidates answer on the Question Paper Additional Materials: OTAS Paper READ THESE INSTRUCTIONS FIRST Write your Centre number, index number, name and class on all the work you hand in. Write in soft pencil on the Multiple Choice Answer Sheet Do not use staples, paper clips, glue or correction fluid. 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 Multiple Choice Answer Sheet. Read the instructions on the 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 booklet. A copy of the Periodic Table is printed on page 16. The use of an approved scientific calculator is expected, where appropriate. This document consists of 16 printed pages. CANDIDATE NAME CLASS CENTRE NUMBER S INDEX NUMBER

CHR 2025/Chemistry 6092/01/O/25 2 1 The apparatus shown in the diagram below was set up by a student to measure the volume of carbon dioxide gas made when different masses of marble chips were added to 25 cm3 of dilute hydrochloric acid. Which other apparatus did he use for his experiment? A filter funnel and mass balance B filter funnel and stopwatch C measuring cylinder and mass balance D measuring cylinder and stopwatch 2 Gas W was collected using displacement of air by downward delivery, and then placed in the set-up below. After a short while, the water level in column Z was observed. Which observations(s) could possibly be made about the water level in column Z? I Water level increased. II Water level remained the same. III Water level decreased, then increased. A I only B II only C I and II D II and III gas W methane porous pot Z gas syringe rubber bung marble chips 25 cm3 dilute hydrochloric acid

CHR 2025/Chemistry 6092/01/O/25 [Turn over 3 3 Two identical bottles, A and B are filled with gases X and Y respectively. They were then put on a balance at room temperature and pressure. The result is shown below Which of the following statements is correct? A The number of gas particles in bottle A is greater than the number of gas pa