This test contains 24 numbered pages printed on both sides. There are 35 multiple-choice questions appearing on pages numbered 3 to 20. Pages 21 and 22 are extra space for rough work. Page 23 includes some useful data and equations. There is a periodic table on page 24. You may tear off the last page to view the periodic table and the data provided. You must enter your name and student number on the question sheets, as well as on the answer sheet. Your invigilator will be checking your student card for identification. You are responsible for ensuring that your copy of the question paper is complete. Bring any discrepancy to the attention of your invigilator. All questions are each worth 1 mark; the total marks available are 35. There is no additional penalty for incorrect answers. Be sure to enter the correct version of your test (shown near the top of page.