AQA A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry| QUESTION PAPER & MARKING SCHEME| [MERGED] Marking scheme June 2023 |

AQA A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Version: 1.0 Final *JUN* IB/M/Jun23/E9 7405/1 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL Monday 12 June 2023 Morning Time allowed: 2 hours Materials For this paper you must have: • the Periodic Table/Data Booklet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. • If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your answer(s). • All working must be shown. • Do all rough work in this book. Cross through any work you do not want to be marked. Information • The marks for questions are shown in brackets. • The maximum mark for this paper is 105. Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. A-level CHEMISTRY Paper 1 Inorganic and Physical Chemistry 2 *02* IB/M/Jun23/7405/1 Do not write outside the Answer all questions in the spaces provided. box 0 1 This question is about complexes of the transition metal chromium. 0 1 . 1 State the meaning of the term transition metal complex. [1 mark] Cr(PF3)6 is a complex of chromium that contains molecules of PF3 0 1 . 2 The electron pair repulsion theory can be used to predict the shape of a PF3 molecule. Draw the shape of a PF3 molecule. Include any lone pairs of electrons that influence t