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AS Level Chemistry A H032/02 Question Paper 2021

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Tuesday 12 October 2021 – Morning AS Level Chemistry A H032/02 Depth in chemistry Time allowed: 1 hour 30 minutes INSTRUCTIONS • Use black ink. You can use an HB pencil, but only for graphs a... nd diagrams. • Write your answer to each question in the space provided. If you need extra space use the lined pages at the end of this booklet. The question numbers must be clearly shown. • Answer all the questions. • Where appropriate, your answer should be supported with working. Marks might be given for using a correct method, even if your answer is wrong. INFORMATION • The total mark for this paper is 70. • The marks for each question are shown in brackets [ ]. • Quality of extended response will be assessed in questions marked with an asterisk (*). • This document has 16 pages. ADVICE • Read each question carefully before you start your answer. Answer all the questions. 1 This question is about compounds of sulfur. (a) Potassium sulfide, K2S, shows ionic bonding. (i) Explain what is meant by ionic bonding. ........................................................................................................................................... ...................................................................................................................................... [1] (ii) Draw a ‘dot-and-cross’ diagram to show the bonding in K2S. Show outer electrons only. [2] (b) Sulfur difluoride, SF2, shows covalent bonding [Show More]

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