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Pearson Edexcel International Advanced Level International Advanced Subsidiary/Advanced Level UNIT 2: Energetics, Group Chemistry, Halogenoalkanes and Alcohols QP MAY 2024$12.99
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Pearson Edexcel International Advanced Level International Advanced Subsidiary/Advanced Level UNIT 2: Energetics, Group Chemistry, Halogenoalkanes and Alcohols QP MAY 2024
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Course
Pearson Edexcel International Advanced Level
Institution
Pearson Edexcel International Advanced Level
Pearson Edexcel International Advanced Level International Advanced Subsidiary/Advanced Level UNIT 2: Energetics, Group Chemistry, Halogenoalkanes
and Alcohols QP MAY 2024
Pearson Edexcel International Advanced Level International Advanced Subsidiary/Advanced Level UNIT 2: Energetics, Group Chemistry, Haloge
and Alcohols QP MAY 2024
Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Monday 13 May 2024
Morning (Time: 1 hour 30 minutes) Paper
reference WCH12/01
Chemistry 🞍 🞍
International Advanced Subsidiary/Advanced Level
UNIT 2: Energetics, Group Chemistry,
Halogenoalkanes and Alcohols
You must have: Total Marks
Scientific calculator, Data Booklet, ruler
Instructions
•• IfFillpencil
Use black ink or ball‑point pen.
is used for diagrams/sketches/graphs it must be dark (HB or B).
• centrein the
number boxes
andatcandidate
the top ofnumber.
this page with your name,
•• –Answer all
thequestions.
questions in the spaces provided
there may be more space than you need.
Information
•• The total mark for this paper is 80.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Into the question marked with an asterisk (*), marks will be awarded for your ability
structure your answer logically, showing how the points that you make are
related or follow on from each other where appropriate.
• A Periodic Table is printed on the back cover of this paper.
Advice
•• Read each question carefully before you start to answer it.
Show all your working in calculations and include units where appropriate.
•• Try to answer every question.
Check your answers if you have time at the end. Turn over
You should aim to spend no more than 20 minutes on this section.
For each question, select one answer from A to D and put a cross in the box . If you change
your mind about an answer, put a line through the box and then mark your new answer with
a cross .
1 An enthalpy level diagram for a reaction with an intermediate is shown.
intermediate
B C
D
Enthalpy
A products
reactants
Progress of reaction
Which arrow shows the enthalpy change for this reaction?
A arrow A
B arrow B
C arrow C
D arrow D
(Total for Question 1 = 1 mark)
2 Sodium chloride dissolves in water to form a solution because of the interactions
between the sodium chloride and water. What are these interactions?
A dipole‑dipole
B hydrogen bonds
C ion‑dipole
D London forces
(Total for Question 2 = 1 mark)
2
, 3 Which equation represents the reaction for which the enthalpy change, ΔrH, is the
mean bond enthalpy of the C Cl bond in CCl4?
DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA
A CCl4(g) C(g) + 4Cl(g)
B ¼CCl4(g) ¼C(g) + Cl(g)
C C(g) + 4Cl(g) CCl4(g)
D ¼C(g) + Cl(g) ¼CCl4(g)
(Total for Question 3 = 1 mark)
4 This question is about boiling temperatures.
(a) Which isomer has the highest boiling temperature?
(1)
A
DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA
B
C
D
(b) Which compound has the highest boiling temperature?
(1)
A pentane
DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA
B cyclopentane
C butan‑1‑ol
D butane‑1,4‑diol
(Total for Question 4 = 2 marks)
3
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