NYJC_H1_Chem_Prelim_2012_P1

H1 Chemistry 8872/01 NYJC J2/12 PX NANYANG JUNIOR COLLEGE JC 2 PRELIMINARY EXAMINATION Higher 1 CHEMISTRY 8872/01 Paper 1 Multiple Choice 21 September 2012 50 minutes Additional Materials: Multiple Choice Answer Sheet Data Booklet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, class and tutor’s name on the Answer Sheet in the spaces provided unless this has been done for you. There are thirty 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 you 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. This document consists of 15 printed pages and 1 blank page. [Turn over

2 H1 Chemistry 8872/01 NYJC J2/12 PX Section A For each question there are four possible answers, A, B, C and D. Choose the one you consider to be correct. 1 Carbon disulfide, CS 2, is a poisonous, volatile liquid used in the manufacture of viscose rayon and cellophane. It reacts with n itrogen monoxide, NO, to form a yellow solid and equal volumes of two gases. What are the products of the reaction? A S, CO, N2 B S, CO, NO2 C S, CO2, N2 D S, CO2, NO2 2 Dilute sulfuric acid was added to aqueous barium hydroxide until the acid was in excess. Which graph shows the variation in the total number of aqueous ions in solution? A B C D 0 amount of acid added Total number of ions 0 amount of acid added Total number of ions 0 amount of acid added Total number of ions 0 amount of acid added Total number of ions

3 H1 Chemistry 8872/01 NYJC J2/12 PX [Turn over 3 What is the electronic configuration of an element with a second ionisation energy that is lower than that of each of the elements either side of it in the Periodic Table? 0 A 1s22s22p3 1 B 1s22s22p4 2 C 1s22s22p5 3 D 1s22s22p6 4 Copper and iodine are both shiny crystalline solids. The crystal structures of copper and iodine are both face -centred cubic. The diagram shows the arrangement of the particles in this type of crystal lattice. What are the particles present in each lattice? 5 What is a property of a solution of dry hydrogen chloride in dry methylbenzene? A It has a pH less than 7. B It is a non-conductor of electricity. C It reacts with magnesium to give hydrogen. D It reacts with anhydrous sodium carbonate to give carbon dioxide. copper iodine A atoms anions B atoms atoms C cations atoms D cations molecules

4 H1 Chemistry 8872/01 NYJC J2/12 PX 6 Which equation is used to define the first ionisation energy of bromi