OCR A Level Chemistry A H432/02 ocr a level chemistry a h432/02 synthesis analytical techniques exam chemistry marking scheme answers chemistry exam with solution 2025/ 2026 OCR A Level Chemistry A H432/02 Synthesis and Analytical Techniques Question Pap

2025 OCR
2025AOCR
Level
2025AChemistry
OCR
LevelAChemistry
Level
A H43202
Chemistry
A H43202
Synthesis
A H43202
Synthesis
andSynthesis
analytical
and analytical
and
techniques
analytical
techniques
Verified
techniques
Verified
Question
Verified
Question
paperQuestion
with
paperMarking
with
paperMarking
Scheme
with Marking
Scheme
Attached.pdf
Scheme
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Attached.pdf




2025 OCR A Level Chemistry A
H432/02 Synthesis and analytical techniques
Verified Question paper with Marking Scheme Attached



Oxford Cambridge and RSA

Monday 16 June 2025 – Morning
A Level Chemistry A
H432/02 Synthesis and analytical techniques
Time allowed: 2 hours 15 minutes

You must have:
• the Data Sheet for Chemistry A
You can use:
• a ruler (cm/mm)
• a scientific or graphical calculator
• an HB pencil




Please write clearly in black ink. Do not write in the barcodes.

Centre number Candidate number


First name(s)

Last name



INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use the lined
pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be given
for using a correct method, even if your answer is wrong.

INFORMATION
• The total mark for this paper is 100.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 36 pages.

ADVICE
• Read each question carefully before you start your answer


© OCR 2025 [601/5255/2] OCR is an exempt Charity
DC (WW/SW) 346686/6 Turn over


2025 OCR
2025AOCR
Level
2025AChemistry
OCR
LevelAChemistry
Level
A H43202
Chemistry
A H43202
Synthesis
A H43202
Synthesis
andSynthesis
analytical
and analytical
and
techniques
analytical
techniques
Verified
techniques
Verified
Question
Verified
Question
paperQuestion
with
paperMarking
with
paperMarking
Scheme
with Marking
Scheme
Attached.pdf
Scheme
Attached.pdf
Attached.pdf

,2025 OCR
2025AOCR
Level
2025AChemistry
OCR
LevelAChemistry
Level
A H43202
Chemistry
A H43202
Synthesis
A H43202
Synthesis
andSynthesis
analytical
and analytical
and
techniques
analytical
techniques
Verified
techniques
Verified
Question
Verified
Question
paperQuestion
with
paperMarking
with
paperMarking
Scheme
with Marking
Scheme
Attached.pdf
Scheme
Attached.pdf
Attached.pdf




2
Section A

You should spend a maximum of 20 minutes on this section.

Write your answer to each question in the box provided.


1 Which compound is alicyclic and unsaturated?




A




B




C




D



Your answer
[1]




© OCR 2025




2025 OCR
2025AOCR
Level
2025AChemistry
OCR
LevelAChemistry
Level
A H43202
Chemistry
A H43202
Synthesis
A H43202
Synthesis
andSynthesis
analytical
and analytical
and
techniques
analytical
techniques
Verified
techniques
Verified
Question
Verified
Question
paperQuestion
with
paperMarking
with
paperMarking
Scheme
with Marking
Scheme
Attached.pdf
Scheme
Attached.pdf
Attached.pdf

,2025 OCR
2025AOCR
Level
2025AChemistry
OCR
LevelAChemistry
Level
A H43202
Chemistry
A H43202
Synthesis
A H43202
Synthesis
andSynthesis
analytical
and analytical
and
techniques
analytical
techniques
Verified
techniques
Verified
Question
Verified
Question
paperQuestion
with
paperMarking
with
paperMarking
Scheme
with Marking
Scheme
Attached.pdf
Scheme
Attached.pdf
Attached.pdf




3
2 0.0200 mol of the compound below reacts with Br2(aq) to make a saturated compound. How

many grams of Br2 are needed for this reaction?


Cl




A 3.20

B 6.39

C 7.99

D 12.80


Your answer
[1]


3 The skeletal structure of a medicinal drug is shown below.

How many hydrogen atoms are in its molecular formula?


H
N


Cl




Cl



A 14

B 15

C 17

D 19


Your answer
[1]



© OCR 2025 Turn over




2025 OCR
2025AOCR
Level
2025AChemistry
OCR
LevelAChemistry
Level
A H43202
Chemistry
A H43202
Synthesis
A H43202
Synthesis
andSynthesis
analytical
and analytical
and
techniques
analytical
techniques
Verified
techniques
Verified
Question
Verified
Question
paperQuestion
with
paperMarking
with
paperMarking
Scheme
with Marking
Scheme
Attached.pdf
Scheme
Attached.pdf
Attached.pdf

, 2025 OCR
2025AOCR
Level
2025AChemistry
OCR
LevelAChemistry
Level
A H43202
Chemistry
A H43202
Synthesis
A H43202
Synthesis
andSynthesis
analytical
and analytical
and
techniques
analytical
techniques
Verified
techniques
Verified
Question
Verified
Question
paperQuestion
with
paperMarking
with
paperMarking
Scheme
with Marking
Scheme
Attached.pdf
Scheme
Attached.pdf
Attached.pdf




4
4 Which diagram shows the correct way to set up apparatus for converting ethanol to ethanoic acid?




water out water in




A B
water in water out




water out water in
water in water out

C D




Your answer
[1]




© OCR 2025





2025 OCR
2025AOCR
Level
2025AChemistry
OCR
LevelAChemistry
Level
A H43202
Chemistry
A H43202
Synthesis
A H43202
Synthesis
andSynthesis
analytical
and analytical
and
techniques
analytical
techniques
Verified
techniques
Verified
Question
Verified
Question
paperQuestion
with
paperMarking
with
paperMarking
Scheme
with Marking
Scheme
Attached.pdf
Scheme
Attached.pdf
Attached.pdf