IJC_H2_CHEM_MCQ_ANS

1 INNOVA JUNIOR COLLEGE JC 2 PRELIMINARY EXAMINATION 2 in preparation for General Certificate of Education Advanced Level Higher 2 CANDIDATE NAME CLASS INDEX NUMBER CHEMISTRY Paper 1 Multiple Choice Additional Materials: Data Booklet Multiple Choice Answer Sheet 9647/01 14 September 2011 1 hour READ THESE INSTRUCTIONS FIRST Write your name and class on all the work you hand in. Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. 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. This document consists of 15 printed pages and 1 blank page. Innova Junior College [Turn over

2 PRELIM 2  INNOVA 9647/01/2011 [Turn Over Section A For each question there are four possible answers, A, B, C, and D. Choose the one you consider to be correct. 1 0.5 g of zinc powder was found to reduce an acidified solution of 25.50 cm 3 of 0.200 mol dm-3 metal A ion, AO2 +. What is the final oxidation number of metal A? A 0 C +2 B +1 D +3 2 Which graph is obtained when pV is plotted against p for a fixed amount of an ideal gas at constant temperature? A C B D 3 Gaseous particle B has a proton number n and a charge of +1. Gaseous particle C has a proton number of (n+1) and is isoelectronic with B. B and C have the same number of neutrons. Which of the following statements incorrectly describes B and C? A The charge of B is half that of C. B B has a larger ionic radius than C. C B requires less energy than C when a further electron is removed from each particle. D B has a higher charge density than C.

3 PRELIM 2  INNOVA 9647/01/2011 [Turn Over 4 The use of the Data Booklet is relevant to this question. D and E are in Group V and Group VI respectively. Which of the following comparisons between the first and second ionisation energies of D and E is correct? 1st I.E. 2 nd I.E. A D < E D > E B D < E D < E C D > E D > E D D > E D < E 5 Three substances F, G and H have physical properties as shown. Substance Melting point/ °C Boiling point/ °C Electrical conductivity of solid of liquid F 801 1413 Poor Good G 2852 3600 Poor Good H 3550 4827 Good Unknown What could be the identities of F, G and H? F G H A AlC