2022 HIHS Chem Prelims P2

1 HOLY INNOCENTS’ HIGH SCHOOL Candidate Name Class Index Number PRELIMINARY EXAMINATION 2022 SECONDARY 4 EXPRESS CHEMISTRY Paper 2 6092/02 Date: 17 Aug 2022 Duration: 1 h 45 min Additional Materials: NIL 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 paper clips, glue or correction tape/fluid. Section A Answer all questions. Write your answers in the spaces provided on the question paper. Section B Answer all three questions, the last question is in the form either/or. Write your answers in the spaces provided. Information for Candidates A copy of the Periodic Table is printed on page 2. You are advised to spend no longer than 65 minutes on Section A and no longer than 40 minutes on Section B. For Sections A and B, the number of marks is given in brackets [ ] at the end of each question or part question. For Examiner’s use Sect A Sect B ……… ……… ……… Total Set by: Mr Daniel Lau Vetted by: Ms Woo Wei Shan This document consists of 21 printed pages (including cover page). O 80

2 The Periodic Table of the Elements Group I II III IV V VI VII 0 key 1 H hydrogen 1 2 He helium 4 3 Li lithium 7 4 Be beryllium 9 proton (atomic) number atomic symbol name relative atomic mass 5 B boron 11 6 C carbon 12 7 N nitrogen 14 8 O oxygen 16 9 F fluorine 19 10 Ne neon 20 11 Na sodium 23 12 Mg magnesium 24 13 Al aluminium 27 14 Si silicon 28 15 P phosphorus 31 16 S sulfur 32 17 Cl chlorine 35.5 18 Ar argon 40 19 K potassium 39 20 Ca calcium 40 21 Sc scandium 45 22 Ti titanium 48 23 V vanadium 51 24 Cr chromium 52 25 Mn manganese 55 26 Fe iron 56 27 Co cobalt 59 28 Ni nickel 59 29 Cu copper 64 30 Zn zinc 65 31 Ga gallium 70 32 Ge germanium 73 33 As arsenic 75 34 Se selenium 79 35 Br bromine 80 36 Kr krypton 84 37 Rb rubidium 85 38 Sr strontium 88 39 Y yitrium 89 40 Zr zirconium 91 41 Nb niobium 93 42 Mo molybdenum 96 43 Tc technetium - 44 Ru ruthenium 101 45 Rh rhodium 103 46 Pd palladium 106 47 Ag silver 108 48 Cd cadmium 112 49 In indium 115 50 Sn tin 119 51 Sb antimony 122 52 Te tellurium 128 53 I iodine 127 54 Xe xenon 131 55 Cs caesium 133 56 Ba barium 137 57 – 71 lanthanoids 72 Hf hafnium 178 73 Ta tantalum 181 74 W tungsten 184 75 Re rhenium 186 76 Os osmium 190 77 Ir iridium 192 78 Pt platinum 195 79 Au gold 197 80 Hg mercury 201 81 Tl thallium 204 82 Pb lead 207 83 Bi bismuth 209 84 Po polonium - 85 At astatine - 86 Rn radon - 87 Fr francium - 88 Ra radium - 89 - 103 acti