VJC 2022 JC1 Promo H2 Chem P1 MCQ QP

1 © VJC 2022 9729/01/Promo2022 [Turn Over VICTORIA JUNIOR COLLEGE JC 1 PROMOTIONAL EXAMINATIONS Higher 2 CHEMISTRY 9729//01 Paper 1 Multiple Choice 30 September 2022 1 hour Additional Materials: Multiple Choice Answer Sheet Data Booklet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your index number, name and CT group on the Answer Sheet. There are thirty questions. 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. A Data Booklet is provided. 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. The use of an approved scientific calculator is expected, where appropriate. This document consists of 13 printed pages and 1 blank page.

2 © VJC 2022 9729/01/Promo2022 For each question there are four possible answers, A, B, C, and D. Choose the one you consider to be correct. 1 Use of the Data Booklet is relevant to this question. In 2011, two new elements were added to the Periodic Table. Both elements had been made artificially and were called flerovium (Fl) and livermorium (Lv). Fl Lv proton number 114 116 nucleon number 289 292 Which statements about these elements are correct? 1 A Lv+ ion has the same number of electrons as a Fl− ion. 2 A beam of Lv3+ ions is deflected by a smaller angle in an electric field as compared to a beam of Fl2– ions. 3 A Lv atom has the same electronic configuration as a Fl 2– ion. A 1, 2 and 3 only B 1 and 2 only C 1 and 3 only D 3 only 2 The graph shows the first thirteen ionisation energies for element X. X reacts with excess oxygen to form a compound, Y. Y contains the peroxide ion, O22–. What is the formula of compound Y? A XO B XO2 C X2O D X2O2 ionization energy number of electrons removed

3 © VJC 2022 9729/01/Promo2022 [Turn Over 3 Cyanamide, NH2CN, can form a product with boron trifluoride, BF3. What could be a possible structure of the product? A B F F F N C N HH C B F F F N C N HH B B F F F N C N H H D B F F F NCN H H + _ 4 Which one of the following pairs of compounds shows the same shape and similar bond angles? A POCl3 and CCl4 B AlCl3 and NCl3 C SO2 and CO2 D ClF3 and SF4 6 Silicon carbide is a shiny, hard chemically inert material with a very high melting point. It can be used to sharpen knives and make crucibles. Which type of structure explains these properties? A a giant structure with covalent bond