Copy of 2024 ANDSS 4E Chem Prelim P1 QP

This document consists of 17 printed pages and 1 blank page. O ANDERSON SECONDARY SCHOOL Preliminary Examination Secondary Four Express CANDIDATE NAME: CLASS: / INDEX NUMBER: CHEMISTRY Paper 1 Multiple Choice 6092/01 23 August 2024 1 hour Additional Materials: Multiple Choice Answer Sheet 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. 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 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 in this booklet. A copy of the Periodic Table is printed on Page 18. The use of an approved scientific calculator is expected, where appropriate.

PRELIM EXAM 4E CHEMISTRY P1 2024 6092/01 2 1 When heated, magnesium undergoes combustion to form magnesium oxide, a white powder. A student investigates the change in mass that occurs during this reaction. The student is given a balance and three sets of apparatus as shown. Which sets of apparatus are suitable for this investigation? A 1, 2 and 3 B 1 and 3 C 2 and 3 D 2 only 2 The results of a paper chromatography experiment are shown , which is not drawn to scale. X is an aqueous solution of a salt of a Group 1 element. Y is an aqueous solution of a salt of a transition element. Which row is correct? larger Rf value requires a locating agent A X X B X Y C Y X D Y Y 1 2 3 metal tongs burning magnesium air heat magnesium magnesium metal tongs crucible tripod stand solvent front baseline

PRELIM EXAM 4E CHEMISTRY P1 2024 6092/01 3 3 A laboratory has a powdered mixture of solid iodine and solid carbon. Iodine is very soluble in hexane and slightly soluble in water. Carbon is insoluble in both solvents. One sample of the mixture is shaken with hexane. This is P. Another sample of the mixture is shaken with water. This is Q. Which procedure is used to prepare a pure sample of iodine? A P is distilled and the distillate is evaporated to dryness. B P is filtered and the filtrate is allowed to evaporate to dryness. C P is filtered and the residue is allowed to evaporate to dryness. D Q is distilled and the distillate is evaporated to dryness. 4 Mineral wool soaked in aqueous ammonia is placed in the apparatus shown. After 5 minutes, the damp red litmus paper