IJC_H1_CHEM_P1

INNOVA JUNIOR COLLEGE JC 2 PRELIMINARY EXAMINATION 2 in preparation for General Certificate of Education Advanced Level Higher 1 CANDIDATE NAME CLASS INDEX NUMBER CHEMISTRY Paper 1 Multiple Choice Additional Materials: Data Booklet Multiple Choice Answer Sheet 8872/01 24 September 2009 50 minutes 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 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 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 11 printed pages and 1 blank page. Innova Junior College [Turn over

2 PRELIM 2  INNOVA 8872/01/09 [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 Consider the following half-equations. Fe 2+ Fe3+ + e C2O4 2– 2CO + 2e 2 What volume of 0.01 mol dm -3 K 2Cr2O7 is required to oxidise 20 cm 3 of an acidified solution of 0.01 mol dm-3 FeC2O4? A 10 cm3 C 30 cm3 B 20 cm3 D 40 cm3 2 A sample containing a mmonium sulphate (M r = 132) was warmed with 100 cm 3 of 0.500 mol dm –3 sodium hydroxide. When the evolution of ammonia ceased, the excess sodium hydroxide solution was neutralised with 25.00 cm 3 of 0.500 mol dm –3 hydrochloric acid. What was the mass of ammonium sulphate in the sample? A 2.48 g C 6.60 g B 4.95 g D 13.20 g 3 A tube was filled with a mixture composing of 10 cm 3 of methane, 15 cm 3 of ethene and 75 cm3 of oxygen at room temperature. The open end of the tube was placed in a beaker of Ba(OH)2 (aq) as shown below. The gas mixture was then sparked and the reaction was allowed to proceed till completion. What would be the final level of the liquid in the tube after cooling it to room temperature? 100 80 60 40 20 Ba(OH)2 (aq) A B C D

3 PRELIM 2  INNOVA 8872/01/09 [Turn over 4 The electro nic configurations of four elements are given below. Which of these elements has the highest first ionisation energy? A 1s2 2s2 2p6 3s1 B 1s2 2s2 2p6 C 1s2 2s2 2p1 D 1s2 2s2 5 Which property of the first seven elements in Period 3 co