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AQA A LEVEL CHEMISTRY PAPER 2 ORGANIC AND PHYSICAL CHEMISTRY 2020 QP *JUN* IB/M/Jun20/E11 7405/2 A-level CHEMISTRY Paper 2 Organic and Physical Chemistry Monday 8 June 2020 Afternoon Time allowed: 2 hours For Examiner’s Use Question Mark R221,61
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AQA A LEVEL CHEMISTRY PAPER 2 ORGANIC AND PHYSICAL CHEMISTRY 2020 QP *JUN* IB/M/Jun20/E11 7405/2 A-level CHEMISTRY Paper 2 Organic and Physical Chemistry Monday 8 June 2020 Afternoon Time allowed: 2 hours For Examiner’s Use Question Mark
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Course
AQA A LEVEL ORGANIC AND PHYSICAL
Institution
AQA A LEVEL ORGANIC AND PHYSICAL
AQA A LEVEL CHEMISTRY
PAPER 2 ORGANIC AND
PHYSICAL CHEMISTRY 2020
QP
*JUN* IB/M/Jun20/E11 7405/2
A-level
CHEMISTRY
Paper 2 Organic and Physical Chemistry
Monday 8 June 2020 Afternoon Time allowed: 2 hours
For Examiner’s Use
Question Mark
1
AQA A LEVEL CHEMISTRY
PAPER 2 ORGANIC AND
PHYSICAL CHEMISTRY 2020
QP
*JUN207405201* IB/M/Jun20/E11 7405/2
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signat ure
I declare this is my own work.
A-level
CHEMISTRY
Paper 2 Organic and Physical Chemistry
Monday 8 June 2020 Afternoon Time allowed: 2 hours
For Examiner’s Use
Question Mark
1
,Materials 2
For this paper you must have: 3
• the Periodic Table/Data Booklet, provided as an insert (enclosed)
4
• a ruler with millimetre measurements
• a scientific calculator, which you are expected to use where appropriate. 5
6
Instructions
7
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page. 8
• Answer all questions. 9
• You must answer the questions in the spaces provided. Do not write outside the
box around each page or on blank pages. TOTAL
• 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.
*JUN207405201* 7405/2
IB/M/Jun20/E11
Answer all questions in the spaces provided.
, 2
Do not write
outside the
box
0 1 This question is about rates of reaction.
Phosphinate ions (H2PO –) react with hydroxide ions to produce hydrogen gas as
2 shown.
H2PO2 – + OH − →HPO3 2– + H2
A student completed an experiment to determine the initial rate of this reaction. The student
used a solution containing phosphinate ions and measured the volume of hydrogen gas
collected every 20 seconds at a constant temperature. Figure 1 shows a graph of the
student’s results.
0 1
1
IB/M/Jun20/7405/2
, Figure 1
. Use the graph in Figure 1 to determine the initial rate of reaction for this experiment.
State its units. Show your working on the graph.
[3 marks]
Rate Units
*02*
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