2022 CHR Chem Prelims P1

CHR 2022/Chemistry 6092/01/O/22 [Turn over CHRIST CHURCH SECONDARY SCHOOL 2022 PRELIMINARY EXAMINATION FOUR EXPRESS CHEMISTRY 6092/01 Paper 1 15 July 2022 1 hour Additional Materials: Multiple Choice Answer Sheet 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, highlighters, 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 14. The use of an approved scientific calculator is expected, where appropriate. This document consists of 14 printed pages. CANDIDATE NAME CLASS CENTRE NUMBER S INDEX NUMBER ��

CHR 2022/Chemistry 6092/01/O/22 2 1 Which one of the following correctly describes the particles in a dilute sugar solution at room temperature? sugar molecules water molecules A widely separated, moving at random close together, moving at random B widely separated, moving at random close together, not moving C widely separated, not moving widely separated, moving at random D close together, moving at random widely separated, vibrating slightly 2 The tubes shown in the diagram all contain a dilute solution of a solid X dissolved in a liquid Y. Which apparatus is most suitable for finding the boiling point of liquid Y? A B C D 3 The diagram shows some ammonium chloride being heated. What does the clear region between the ammonium chloride and the white deposit contain? A ammonia and chlorine B ammonia and hydrogen chloride C ammonia and water vapour D ammonium chloride vapour white deposit clear region ammonium chloride heat ��

CHR 2022/Chemistry 6092/01/O/22 [Turn over 3 4 The percentage of oxygen in the air is found by using the apparatus shown below. The air is passed over heated copper until there is no further decrease in volume. What precaution should be taken before the initial volume of air and final volume of gases remaining