AES 4NA Science Chemistry P3 Question Paper 2023

1 [Turn over Name: ……………………………………………….. ( ) Class: ……... ASSUMPTION ENGLISH SCHOOL PRELIMINARY EXAMINATION 2023 SCIENCE (CHEMISTRY) 5105 / 03 5107 / 03 ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL ASSUMPTION ENGLISH SCHOOL LEVEL: Sec 4 Normal (Academic) DATE : 3 Aug 2023 CLASSES: Sec 4/4, 4/5 and 4/6 SBB DURATION: 1 hour 15 minutes (Papers 3 & 4) Additional Materials provided: 1 sheet of OAS paper INSTRUCTIONS TO CANDIDATES Do not open this booklet until you are told to do so. Write your NAME, INDEX NUMBER and CLASS at the top of this page and on the OAS paper. Shade your index number on the OAS paper. There are 20 questions in this paper. Answer ALL questions. For each question, there are four possible answers A, B, C and D. Choose the correct answer and record your choice in s oft or 2B pencil on the OAS paper provided. DO NOT fold or bend the OAS paper. At the end of t he examination, hand in your OAS paper and Question Papers separately. INFORMATION FOR CANDIDATES You are advised to spend no longer than 30 minutes on Paper 3. You may proceed to answer Paper 4 as soon as you have completed Paper 3. A copy of the Periodic Table is printed on the last page of Paper 4. This question paper consists of 9 printed pages including this page.

2 5105/5107/03/4NA/PRELIM/23 Section A - Multiple Choice Questions (20 marks) There are twenty questions in this section. 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 on the OAS in soft pencil. 1 The diagram below shows part of a burette containing dilute hydrochloric acid before and after an experiment. What is the volume of dilute hydrochloric acid used in the experiment? A 24.70 cm3 B 25.30 cm3 C 25.80 cm3 D 26.20 cm3 2 The diagram shows five laboratory apparatus. Which apparatus are needed to obtain pure water from copper(II) sulfate solution? A 2 and 5 only B 2, 3 and 5 only C 1, 4 and 5 only D 1, 2, 4 and 5 only 3 The table below contains descriptions of 4 different substances E, F, G and H. 1 2 3 4 5

3 5105/5107/03/4NA/PRELIM/23