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ACTUAL AQA A LEVEL 2024 CHEMISTRY A LEVEL PAPER 2 WITH MARK SCHEME
ACTUAL AQA A LEVEL 2024 CHEMISTRY A LEVEL PAPER 2 WITH MARK SCHEME
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A-levelCHEMISTRY
7405
Data Booklet
This Data Booklet is provided with AQA A-level Chemistry question papers.
IB/M/Insert to A-level Chemistry/E8 7405
, 2
The Periodic Table of the Elements
1 2 3 4 5 6 7 0
(18)
1.0 4.0
H He
hydrogen helium
(1) (2) Key 1 (13) (14) (15) (16) (17) 2
6.9 9.0 relative atomic mass 10.8 12.0 14.0 16.0 19.0 20.2
Li Be symbol B C N 0 F Ne
lithium beryllium name boron carbon nitrogen oxygen fluorine neon
3 4 atomic (proton) number 5 6 7 8 9 10
23.0 24.3 27.0 28.1 31.0 32.1 35.5 39.9
Na
sodium
Mg
magnesium
Al
aluminium
Si p s Cl Ar
silicon phosphorus sulfur chlorine argon
11 12 (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) 13 14 15 16 17 18
39.1 40.1 45.0 47.9 50.9 52.0 54.9 55.8 58.9 58.7 63.5 65.4 69.7 72.6 74.9 79.0 79.9 83.8
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
potassium calcium scandium titanium vanadium chromium manganese iron cobalt nickel copper zinc gallium germanium arsenic selenium bromine krypton
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
85.5 87.6 88.9 91.2 92.9 96.0 [97] 101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8 127.6 126.9 131.3
Rb Sr y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
rubidium strontium yttrium zirconium niobium molybdenum technetium ruthenium rhodium palladium silver cadmium indium tin antimony tellurium iodine xenon
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
132.9 137.3 138.9 178.5 180.9 183.8 186.2 190.2 192.2 195.1 197.0 200.6 204.4 207.2 209.0 [209] [21 OJ [222]
Cs Ba La* Hf Ta w Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
caesium barium lanthanum hafnium tantalum tungsten rhenium osmium iridium platinum gold mercury thallium lead bismuth polonium astatine radon
55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
[223] [226] [227] [267] [270] [269] [270] [270] [278] [281] [281] [285] [286] [289] [289] [293] [294] [294]
Fr Ra Act Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
francium radium actinium rutherfordium dubnium seaborgium bohrium hassium meitnerium dannstadtium roentgenium copemicium nihonium flerovium moscovium livermorium tennessine oganesson
87 88 89 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118
140.1 140.9 144.2 [145] 150.4 152.0 157.3 158.9 162.5 164.9 167.3 168.9 173.0 175.0
* 58 -71 Lanthanides
Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
cerium praseodymium neodymium promethium samarium europium gadolinium terbium dysprosium holmium erbium thulium ytterbium lutetium
58 59 60 61 62 63 64 65 66 67 68 69 70 71
232.0 231.0 238.0 [237] [244] [243] [247] [247] [251] [252] [257] [258] [259] [262]
t 90 -103 Actinides Th Pa u Np Pu Am Cm Bk Cf Es Fm Md No Lr
thorium protactinium uranium neptunium plutonium americium curium berkelium californium einsteinium fenmium mendelevium nobelium lawrencium
90 91 92 93 94 95 96 97 98 99 100 101 102 103
, 3
Data Sheet
Table A Table B Table C
Infrared absorption data 1H NMR chemical shift data 13C NMR chemical shift data
Bond Wavenumber Type of proton δ/ppm Type of carbon δ/ppm
/cm–1
ROH 0.5 – 5.0
N H 3300 – 3500 C C 5 – 40
(amines) RCH3 0.7 – 1.2
RNH2 1.0 – 4.5
O H 3230 – 3550 R C Cl or Br 10 – 70
(alcohols) R2CH2 1.2 – 1.4
C H 2850 – 3300 R3CH 1.4 – 1.6
R C C 20 – 50
O H 2500 – 3000 R C C 2.1– 2.6
(acids) O
O H
C N 2220 – 2260
R O C 3.1 – 3.9 R C N 25 – 60
C O 1680 – 1750
C C 1620 – 1680 H alcohols,
RCH2Cl or Br 3.1 – 4.2 C O ethers or 50 – 90
C O 1000 – 1300
esters
C C 750 – 1100
R C O C 3.7 – 4.1
C C 90 – 150
O H
R H R C N 110 – 125
C C 4.5 – 6.0
110 – 160
O
R C 9.0 – 10.0 R C esters or 160 – 185
H acids
O
O
R C aldehydes 190 – 220
R C 10.0 – 12.0 or ketones
O H O
, 4
Phosphate and sugars
CH2OH HOCH2 O OH
OH O H
H
H H H
O P O OH H
H H
HO OH
OH
H OH OH H
phosphate glucose 2-deoxyribose
Bases
NH2 O NH2 O
H3C
N N N NH
N HN
N N H2N N N N O N O
H H H H
adenine guanine cytosine thymine
Amino acids
H2N CH COOH H2N CH COOH H2N CH COOH
CH3 CH2 COOH CH2 SH
alanine aspartic acid cysteine
H2N CH COOH
CH2
H2N CH COOH H2N CH COOH
CH2 CH2 CH2 CH2 NH2 CH2 OH
lysine phenylalanine serine
Haem B
, Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
CHEMISTRY
Paper 2 Organic and Physical Chemistry
Tuesday 18 June 2024 Morning Time allowed: 2 hours
Materials
For Examiner’s Use
For this paper you must have:
• the Periodic Table/Data Booklet, 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 8
this book. Write the question number against your answer(s).
• All working must be shown. 9
• Do all rough work in this book. Cross through any work you do not want to 10
be marked. 11
Information TOTAL
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 105.
*Jun247405201*
IB/M/Jun24/G4006/E6 7405/2
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 Propanone reacts with bromine in alkaline conditions.
CH3COCH3 + Br2 + OH– ⟶ CH3COCH2Br + Br – + H2O
The rate equation for this reaction is
Rate = k [CH3COCH3] [OH–]
0 1 . 1 Sketch a graph on the axes provided to show how, at constant temperature, the
concentration of bromine changes during this reaction.
[1 mark]
*02*
IB/M/Jun24/7405/2
, 3
Do not write
outside the
0 1 . 2 box
Table 1 shows the initial rate of this reaction for experiments using different mixtures
containing propanone, bromine and hydroxide ions.
Table 1
[CH3COCH3] [Br2] [OH–] Initial rate
Experiment
/ mol dm–3 / mol dm–3 / mol dm–3 / mol dm–3 s–1
1 1.50 × 10–2 2.50 × 10–2 2.50 × 10–2 2.75 × 10–11
2 1.50 × 10–2 2.50 × 10–2 8.25 × 10–11
3 3.75 × 10–3 5.00 × 10–2 1.00 × 10–1
Complete Table 1.
Use the data from experiment 1 to calculate the rate constant k for this reaction.
Give the units for the rate constant.
[5 marks]
k Units
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun24/7405/2
, 4
Do not write
outside the
0 1 . 3 box
Figure 1 shows an incomplete mechanism for this reaction.
Figure 1
Complete the mechanism in Figure 1 by adding four curly arrows and any relevant
lone pair(s) of electrons.
[4 marks]
0 1 . 4 Use evidence from the rate equation to explain why Step 1 is the
rate determining step.
[1 mark]
11
*04*
IB/M/Jun24/7405/2
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