Aqa As Level Chemistry Paper 2 Organic And Physical Chemistry (7404/2) Qp Merged With Mark Scheme June 2024

AQA AS LEVEL CHEMISTRY PAPER 2 Organic and Physical Chemistry (7404/2) QP
MERGED WITH MARK SCHEME JUNE 2024


AS
CHEMISTRY
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




AQA QP MERGED WITH MARK SCHEME


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]




IB/M/Jun24/7404/2

, 3
Do not write
outside the
0 1 . 2 0.500 g of a hydrocarbon is analysed. box

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




IB/M/Jun24/7404/2