2024 HYSS Chem P1

[Turn Over HUA YI SECONDARY SCHOOL PRELIMINARY EXAM 2024 4-G3 NAME CLASS INDEX NUMBER CHEMISTRY 6092/01 PAPER 1 (XX) 21 August 2024 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue, or correction fluid. Write your Name, Class, and Index Number on the Answer Sheet 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 in this booklet. A copy of the Periodic Table is printed on page 19. The use of an approved scientific calculator is expected, where appropriate. Paper 1 40 This document consists of 19 printed pages, and 1 blank page. © HYSS 2024 No part of this document may be reproduced in any form or transmitted in any form or by any means without the prior permission of Hua Yi Secondary School. Setter: Chiang Wai Kit

2 2024_4-G3_ PRELIMS_ CHEMISTRY _PAPER 1 1 A student uses the apparatus shown to measure the volume of oxygen gas produced when different masses of manganese( IV) oxide are added to 50.5 cm 3 of aqueous hydrogen peroxide. What other apparatus are needed? A mass balance and pipette B mass balance and measuring cylinder C measuring cylinder and stop watch D pipette and stopwatch 2 Ammonia gas is produced in a chemical reaction. 3 4 Which of the following methods can be used to collect a dry sample of the gas? A 3 only B 4 only C 1 and 3 D 1, 2 and 3 gas gas concentrated sulfuric acid calcium oxide gas gas concentrated sulfuric acid 1 2 stopper manganese (IV) oxide gas syringe 50.5 cm3 aqueous hydrogen peroxide

3 2024_4-G3_ PRELIMS_ CHEMISTRY _PAPER 1 3 A student accidentally mixed 50 cm3 of water with 50 cm3 of oil. Which method would allow him to obtain 25 cm3 of the oil most easily? A evaporation B filtration C fractional distillation D using a separating funnel 4 The diagram shows the chromatograms of an ink sample P using two different solvents. X is an aqueous solution of a salt of a Group 1 element. Y is an aqeuous solution of a salt of a transition element. Which row correctly describes X and Y? larger Rf value requires a locating agent A X X B X Y C Y X D Y Y solvent front origin

4 2024_4-G3_ PRELIMS_ CHEMISTRY _PAPER 1 5 A sample of solid