A-Level ChemistryYear 2020Q11
10 (B410U10-1) Examiner only 11. Explain the following statements. (a) Bromine is a liquid at room temperature and iodine is a solid. [3] (b) Graphite conducts electricity but diamond does not. [3] (c) The molecular ion peaks are at m/z 158, 160 and 162 in the mass spectrum of bromine, Br2. The areas of these peaks are in the ratio of 1 : 2 : 1. [3] © WJEC CBAC Ltd. 9 (B410U10-1) Turn over. 11 © WJEC CBAC Ltd. BLANK PAGE
Paper Source:o20-8410-01.pdf
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Exam Specification Info
This question is part of the UK A-Level Chemistry syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
Syllabus levelAdvanced Level (A-Level)
SubjectChemistry
Official MarksVariable (2–6 marks)