,
, Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
CHEMISTRY
Paper 2 Organic and Physical Chemistry
Tuesday 21 May 2024 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.
• You must answer the questions in the spaces provided. Do not write outside 6
the box around each page or on blank pages. 7
• If you need extra space for your answer(s), use the lined pages at the end of Section B
this book. Write the question number against your answer(s).
• 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.
*JUN247404201* IB/M/Jun24/G4001/V7 7404/2
, 2
Do not write
outside the
Section A box
Answer all questions in this section.
0 1 This question is about the analysis of organic compounds.
0 1 . 1 Table 1 shows the results of chemical tests on three organic compounds.
Complete the empty boxes in the table.
Table 1
Chemical test
Add bromine orange to
no visible change
water colourless
no visible change bubbles of gas no visible change
Warm with
Fehling’s no visible change no visible change
solution
[3 marks]
*02*
IB/M/Jun24/7404/2
, 3
Do not write
outside the
0 1 . 2 box
0.500 g of a hydrocarbon is analysed.
The hydrocarbon contains 0.450 g of carbon.
Calculate the empirical formula of this hydrocarbon.
[3 marks]
Empirical formula 6
Turn over for the next question
Turn over ►
*03*
IB/M/Jun24/7404/2
, 4
Do not write
outside the
0 2 box
This question is about infrared spectroscopy.
0 2 . 1 Compounds A and B both have the molecular formula C4H8O2
Figure 1 shows the infrared spectra of compounds A and B.
Use the infrared spectra to deduce a possible structural formula for compound A and
a possible structural formula for compound B.
[2 marks]
Figure 1
Possible structural formula of A Possible structural formula of B
*04*
IB/M/Jun24/7404/2
, 5
Do not write
outside the
0 2 . 2 box
Figure 2 shows the infrared spectrum of either pent-1-ene or 2-methylbut-2-ene.
Figure 2
Outline how to use the infrared spectrum to determine whether the compound is
pent-1-ene or 2-methylbut-2-ene.
[2 marks]
Question 2 continues on the next page
Turn over ►
*05*
IB/M/Jun24/7404/2
, 6
Do not write
outside the
0 2 . 3 box
Figure 3 shows the infrared spectrum of methane.
Figure 3
Use information from Figure 3 to explain why methane acts as a greenhouse gas.
[1 mark]
5
*06*
IB/M/Jun24/7404/2
, Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
CHEMISTRY
Paper 2 Organic and Physical Chemistry
Tuesday 21 May 2024 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.
• You must answer the questions in the spaces provided. Do not write outside 6
the box around each page or on blank pages. 7
• If you need extra space for your answer(s), use the lined pages at the end of Section B
this book. Write the question number against your answer(s).
• 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.
*JUN247404201* IB/M/Jun24/G4001/V7 7404/2
, 2
Do not write
outside the
Section A box
Answer all questions in this section.
0 1 This question is about the analysis of organic compounds.
0 1 . 1 Table 1 shows the results of chemical tests on three organic compounds.
Complete the empty boxes in the table.
Table 1
Chemical test
Add bromine orange to
no visible change
water colourless
no visible change bubbles of gas no visible change
Warm with
Fehling’s no visible change no visible change
solution
[3 marks]
*02*
IB/M/Jun24/7404/2
, 3
Do not write
outside the
0 1 . 2 box
0.500 g of a hydrocarbon is analysed.
The hydrocarbon contains 0.450 g of carbon.
Calculate the empirical formula of this hydrocarbon.
[3 marks]
Empirical formula 6
Turn over for the next question
Turn over ►
*03*
IB/M/Jun24/7404/2
, 4
Do not write
outside the
0 2 box
This question is about infrared spectroscopy.
0 2 . 1 Compounds A and B both have the molecular formula C4H8O2
Figure 1 shows the infrared spectra of compounds A and B.
Use the infrared spectra to deduce a possible structural formula for compound A and
a possible structural formula for compound B.
[2 marks]
Figure 1
Possible structural formula of A Possible structural formula of B
*04*
IB/M/Jun24/7404/2
, 5
Do not write
outside the
0 2 . 2 box
Figure 2 shows the infrared spectrum of either pent-1-ene or 2-methylbut-2-ene.
Figure 2
Outline how to use the infrared spectrum to determine whether the compound is
pent-1-ene or 2-methylbut-2-ene.
[2 marks]
Question 2 continues on the next page
Turn over ►
*05*
IB/M/Jun24/7404/2
, 6
Do not write
outside the
0 2 . 3 box
Figure 3 shows the infrared spectrum of methane.
Figure 3
Use information from Figure 3 to explain why methane acts as a greenhouse gas.
[1 mark]
5
*06*
IB/M/Jun24/7404/2
