Tuesday 9 June 2026 – 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
* H 4 3 2 0 2 *
*
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 page 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 32 pages.
ADVICE
• Read each question carefully before you start your answer.
Cambridge OCR 2026 [601/5255/2] Cambridge OCR is an exempt Charity
DC (EV/SG) 363916/5 Turn over
, 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 A non-cyclic alkene has the molecular formula C6H8.
What is the number of π-bonds in one molecule of C6H8?
A 2
B 3
C 4
D 6
Your answer
[1]
2 What is a correct name of the compound below?
H3C Cl
C C
F CH3
A cis-1,2-dimethyl-1-chloro-2-fluoroethene
B E-2-chloro-3-fluorobut-2-ene
C trans-1,2-dimethyl-1-chloro-2-fluoroethene
D Z-2-chloro-3-fluorobut-2-ene
Your answer
[1]
Cambridge OCR 2026
, 3
3 Nitrobenzene reacts with Br2 in the presence of a halogen carrier.
NO2
Nitrobenzene
What is the most likely organic product?
A Br NO2
Br
B Br NO2
Br
Br
C
NO2
Br Br
D
NO2
Your answer
[1]
Cambridge OCR 2026 Turn over
, 4
4 Complete combustion of 2.00 g of a hydrocarbon forms 2.57 g of water.
What is the empirical formula of the hydrocarbon?
A CH
B CH2
C CH3
D CH4
Your answer
[1]
5 What is the number of chiral centres in the molecule below?
OH
CH3
CH3
O
A 3
B 4
C 5
D 6
Your answer
[1]
Cambridge OCR 2026
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
* H 4 3 2 0 2 *
*
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 page 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 32 pages.
ADVICE
• Read each question carefully before you start your answer.
Cambridge OCR 2026 [601/5255/2] Cambridge OCR is an exempt Charity
DC (EV/SG) 363916/5 Turn over
, 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 A non-cyclic alkene has the molecular formula C6H8.
What is the number of π-bonds in one molecule of C6H8?
A 2
B 3
C 4
D 6
Your answer
[1]
2 What is a correct name of the compound below?
H3C Cl
C C
F CH3
A cis-1,2-dimethyl-1-chloro-2-fluoroethene
B E-2-chloro-3-fluorobut-2-ene
C trans-1,2-dimethyl-1-chloro-2-fluoroethene
D Z-2-chloro-3-fluorobut-2-ene
Your answer
[1]
Cambridge OCR 2026
, 3
3 Nitrobenzene reacts with Br2 in the presence of a halogen carrier.
NO2
Nitrobenzene
What is the most likely organic product?
A Br NO2
Br
B Br NO2
Br
Br
C
NO2
Br Br
D
NO2
Your answer
[1]
Cambridge OCR 2026 Turn over
, 4
4 Complete combustion of 2.00 g of a hydrocarbon forms 2.57 g of water.
What is the empirical formula of the hydrocarbon?
A CH
B CH2
C CH3
D CH4
Your answer
[1]
5 What is the number of chiral centres in the molecule below?
OH
CH3
CH3
O
A 3
B 4
C 5
D 6
Your answer
[1]
Cambridge OCR 2026
