MOCK PAPER 1

This document consists of 10 printed pages and 2 blank pages. CANDIDATE NAME CENTRE NUMBER S INDEX NUMBER SECONDARY FOUR EXPRESS / FIVE NORMAL (ACADEMIC) GENERAL CERTIFICATE OF EDUCATION (ORDINARY LEVEL) MOCK PAPER SCIENCE (PHYSICS/CHEMISTRY) 5086/01 SCIENCE (CHEMISTRY/BIOLOGY) 5088/01 Paper 1 Multiple Choice 1 hour ADDITIONAL MATERIALS: Optical Answer Sheet (x1) INSTRUCTIONS TO CANDIDATES Write your NAME, CENTRE NUMBER and INDEX NUMBER at the top of this page and on the OAS paper. Shade your index number on the OAS paper. There are 20 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 OAS paper. 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 Data Sheet is printed on page 9. A copy of the Periodic Table is printed on page 10. The use of an approved scientific calculator is expected, where appropriate.

2 © chiasamuel 2025 1 An atom of chlorine is represented by C𝑙17 37 . Which option shows the structure of this atom? A B C D 2 The electronic structures of two atoms Y and Z are shown. Y and Z can combine together to form a bond. Which row describes the bonding and formula of the compound? type of bonding formula A covalent YZ B ionic ZY C covalent Y2Z7 D ionic ZY2 3 Which ions are present in solid calcium phosphate, Ca3(PO4)2 ? A Ca3+ and PO42- B Ca2+ and PO43- C Ca3- and PO42+ D Ca2- and PO43+

3 © chiasamuel 2025 4 The diagram below shows an organic molecule, propyl ethanoate. How many pairs of electrons are used in bonding in the molecule? A 1 B 2 C 14 D 17 5 Two statements about the structure and properties of metals are given. Statement 1: Metals are malleable and most have high melting points. Statement 2: Metals are good conductors of electricity. Which of the following correctly describes statements 1 and 2? A Both statements are correct, and Statement 2 explains Statement 1. B Both statements are correct, but Statement 2 does not explain Statement 1. C Statement 2 is correct but statement 1 is incorrect. D Statement 1 is correct but statement 2 is incorrect. 6 Hydrochloric acid reacts with lithium hydroxide as shown below. HC𝑙 + LiOH → LiC𝑙 + H2O What is the volume of hydrochloric acid of concentration 2.0 mol/dm3 needed to fully react with 25.0 cm3 of lithium hydroxide of concentration 1.0 mol/dm3? A 12.5 cm3 B 25.0 cm3 C 50.0 cm3 D 100.0 cm3

4 © chiasamuel 2025 7 The average mass of an atom of X is 24 times greater than 1 12 of the mass of a carbon-12 atom. What is the relative atomic mass of X? A 2 B 12 C 24 D 48 8 The colours of an indicator, Congo Red, in solutions of pH are shown below.