Exam (elaborations)
AQA MERGED QUESTION PAPER AND MARK SCHEME CHEMISTRY PAPER 2-7404 ORGANIC AND PHYSICAL CHEMISTRY FOR MAY 2024
AQA MERGED QUESTION PAPER AND MARK SCHEME CHEMISTRY PAPER 2-7404 ORGANIC AND PHYSICAL CHEMISTRY FOR MAY 2024
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ASCHEMISTRY
Paper 2 Organic and Physical Chemistry
Tuesday 21 May 2024 Morning Time allowed: 1 hour 30 minutes
For Examiner’s Use
Question Mark
1
2
3
4
5
6
7
Section B
TOTAL
7404/2
, 2
Section A
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]
, 3
0 1 . 2 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 ►
IB/M/Jun24/7404/2
, 4
Do not write
outside the
0 2 This question is about infrared spectroscopy. box
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
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