Exam (elaborations)

AQA AS CHEMISTRY Paper 2 Organic and Physical Chemistry for MAY 2023

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AQA AS CHEMISTRY Paper 2 Organic and Physical Chemistry Tuesday 23 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientif...

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Uploaded on June 17, 2023
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aqa as chemistry paper 2
organic and physical chemistry
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AS CHEM PPR 2

AQA

AS
CHEMISTRY
Paper 2 Organic and Physical
Chemistry

Tuesday 23 May 2023 Morning Time allowed: 1 hour 30 minutes
Materials For Examiner’s Use
For this paper you must have:
 the Periodic Table/Data Sheet, provided as an insert (enclosed) Question Mark
 a ruler with millimetre measurements 1
 a scientific calculator, which you are expected to use where appropriate.
2

Instructions 3
 Use black ink or black ball-point pen. 4
 Fill in the boxes at the top of this page. 5
 Answer all questions. 6
 You must answer the questions in the spaces provided. Do not
write outside the box around each page or on blank pages. 7
 If you need extra space for your answer(s), use the lined pages at 8
the end of this book. Write the question number against your Section
answer(s). B
 All working must be shown. TOTAL
 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 80.

Advice
You are advised to spend about 65 minutes on Section A and 25 minutes on Section B.

1

, 2
Do not write
outside the
Section A box

Answer all questions in this
section.

This0 question
1 is about the analysis of organic compounds.

For each pair of compounds in Questions 01.1 and 01.2, give a reagent
(or combination of reagents) that could be added separately to each
compound in a single reaction to distinguish between them.

State what is observed in each case.

0 1 .1 CH3CH2CH2CHO and CH3CH2CH(OH)CH3
[3 marks]

Reagent(s)

Observation with CH3CH2CH2CHO

Observation with CH3CH2CH(OH)CH3

0 1 .2 Cyclohexane and cyclohexene
[3 marks]

Reagent(s)

Observation with cyclohexane

Observation with cyclohexene

*02
IB/M/
* Jun23/7404/2

, 3
Do not write
outside the
0 1 .3 Table 1 gives the precise relative molecular masses (Mr) of some organic Turn
compounds measured using high resolution mass spectrometry. over ►

Table 1

Molecular formula C5H12 C5H10 C6 H 6
Mr 72.1416 70.126 to be
0 calculated

Use these data to find the relative atomic masses (Ar) of hydrogen and
carbon. Give your answers to 4 decimal places.

Use these calculated Ar values to find the relative molecular mass
(Mr) of C6H6 Give your answer to 4 decimal places.
[3 marks]

Ar of hydrogen

Ar of carbon

Mr of C6H6

*03
IB/M/
* Jun23/7404/2

, 4
Do not write
outside the
box

9

*03
IB/M/
* Jun23/7404/2

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Exam (elaborations)

AQA AS CHEMISTRY Paper 2 Organic and Physical Chemistry for MAY 2023

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