AQA A-level CHEMISTRY 7405/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2022

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AQA A-level CHEMISTRY 7405/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2022 *Jun227405201* IB/M/Jun22/E9 7405/2 For Examiner’s Use Question Mark 1 ... 2 3 4 5 6 7 8 9 10 TOTAL 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 2 Organic and Physical Chemistry 2 *02* IB/M/Jun22/7405/2 Do not write outside the Answer all questions in the spaces provided. box 0 1 An acidified solution of butanone reacts with iodine as shown. CH3CH2COCH3 + I2 → CH3CH2COCH2I + HI 0 1 . 1 Draw the displayed formula for CH3CH2COCH2I Give the name of CH3CH2COCH2I [2 marks] Displayed formula Name 3 *03* Turn over ► IB/M/Jun22/7405/2 Do not write outside the box 0 1 . 2 The rate equation for the reaction is rate = k[CH3CH2COCH3][H+] Table 1 shows the initial concentrations used in an experiment. Table 1 CH3CH2COCH3 I2 H+ Initial concentration / mol dm−3 4.35 0.00500 0.825 The initial rate of reaction in this experiment is 1.45×10−4 mol dm−3 s−1 Calculate the value of the rat [Show More]

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