2022 GDLSS Chem Prelims P1

Greendale Secondary School 1 Sec 4 Express Preliminary Examination 2022 Chemistry Name: ( ) Class: GREENDALE SECONDARY SCHOOL Preliminary Examination 2022 CHEMISTRY 6092/01 Paper 1 Multiple Choice Secondary 4 Express 31 August 2022 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, class and register number on the Answer Sheet and on the Question Paper in the spaces provided. 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 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 on this question paper. A copy of the Periodic Table is printed on Page 18. The use of an approved scientific calculator is expected, where appropriate. This document consists of 18 printed pages. [Turn over ���

Greendale Secondary School 2 Sec 4 Express Preliminary Examination 2022 Chemistry 1 A student put exactly 25.0 cm3 of dilute hydrochloric acid into a conical flask. The student added 2.5 g of solid sodium carbonate and measured the change in temperature of the mixture. Which apparatus does the student need to use? A balance, measuring cylinder, thermometer B balance, pipette, stopwatch C balance, pipette, thermometer D burette, pipette, thermometer 2 The tubes shown all contain a dilute solution of a solid X dissolved into a liquid Y. Which apparatus is most suitable for finding the boiling point of liquid Y? A B C D 3 Which description of brass are correct? 1 It is an alloy. 2 It is a mixture. 3 It is a non-metal. A 1 only B 1 and 2 only C 2 and 3 only D 3 only ���

Greendale Secondary School 3 Sec 4 Express Preliminary Examination 2022 Chemistry 4 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 close together, moving at random widely separated, moving at random D close together, vibrating slightly close together, moving at random 5 The diagram shows a diffusion experiment. Which gas, when present in the beaker over the porous pot, will cause water level at Y to initially rise? A CO2 B Cl2 C CH4 D NO2 ���

Greendale Secondary School 4 Sec 4 Express Preliminary Examin