AQA A-level CHEMISTRY 7405/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme (Merged) GRADE A+

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AQA A-level CHEMISTRY 7405/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme (Merged) June 2021 Version: 1.0 Final *Jun217405201* IB/M/Jun21/E12 7405/2 For Examiner’s Us... e 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 ofthis 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/Jun21/7405/2 Do not write outside the box Answer all questions in the spaces provided. 0 1 Coconut oil contains a triester with three identical R groups. This triester reacts with potassium hydroxide. 0 1 . 1 Complete the equation by drawing the structure of the other product of this reaction in the box. Name the type of compound shown by the formula RCOOK Give one use for this type of compound. [3 marks] Type of compound Use 0 1 . 2 The triester in coconut oil has a relative molecular mass, Mr = 638.0 In the equation shown at the start of Question 01, R represents an alkyl group that can be written as CH3(CH2)n Deduce the value of n in CH3(CH2)n Show your working. [3 marks] [Show More]

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