A-level chem A
OCR
Oxford Cambridge and RSA
Monday 20 June 2022 – 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 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 32 pages.
ADVICE
• Read each question carefully before you start your answer.
,© OCR 2022 OCR is an exempt
[601/5255/2] DC Charity Turn over
(ST/SG) 301077/4
, Answer all the questions.
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 statement is correct for the different rates of hydrolysis of RCl and RBr?
A RBr is hydrolysed faster because Cl is more electronegative than Br.
B RBr is hydrolysed faster because the C–Cl bond enthalpy is greater than C–Br.
C RCl is hydrolysed faster because Cl is more electronegative than Br.
D RCl is hydrolysed faster because the C–Br bond enthalpy is greater than C–Cl.
Your answer
[1]
2 Which statement about absorption of radiation is correct?
A Infrared radiation can result in the breakdown of the ozone layer.
B Ultraviolet radiation can cause some polymers to photodegrade to benefit the
environment.
C Ultraviolet radiation is linked to global warming.
D Ultraviolet radiation is used in modern breathalysers to measure ethanol in the
breath.
Your answer
[1]
3 What is the number of sigma bonds in a molecule of methylbenzene?
A 7
B 10
C 12
D 15
Your answer
[1]
, 4 The skeletal formula of an organic compound is shown below.
N
OH
O
Which functional groups are present?
A amide and alcohol
B amide and carboxylic
acid C amine and
carboxylic acid D amine,
ketone and alcohol
Your answer
[1]
5 The structure of a drug is shown below:
O
HO OH
HO
F
O
How many chiral carbon atoms are there in a molecule of the drug?
A 5
B 6
C 7
D 8
Your answer
[1]
OCR
Oxford Cambridge and RSA
Monday 20 June 2022 – 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 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 32 pages.
ADVICE
• Read each question carefully before you start your answer.
,© OCR 2022 OCR is an exempt
[601/5255/2] DC Charity Turn over
(ST/SG) 301077/4
, Answer all the questions.
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 statement is correct for the different rates of hydrolysis of RCl and RBr?
A RBr is hydrolysed faster because Cl is more electronegative than Br.
B RBr is hydrolysed faster because the C–Cl bond enthalpy is greater than C–Br.
C RCl is hydrolysed faster because Cl is more electronegative than Br.
D RCl is hydrolysed faster because the C–Br bond enthalpy is greater than C–Cl.
Your answer
[1]
2 Which statement about absorption of radiation is correct?
A Infrared radiation can result in the breakdown of the ozone layer.
B Ultraviolet radiation can cause some polymers to photodegrade to benefit the
environment.
C Ultraviolet radiation is linked to global warming.
D Ultraviolet radiation is used in modern breathalysers to measure ethanol in the
breath.
Your answer
[1]
3 What is the number of sigma bonds in a molecule of methylbenzene?
A 7
B 10
C 12
D 15
Your answer
[1]
, 4 The skeletal formula of an organic compound is shown below.
N
OH
O
Which functional groups are present?
A amide and alcohol
B amide and carboxylic
acid C amine and
carboxylic acid D amine,
ketone and alcohol
Your answer
[1]
5 The structure of a drug is shown below:
O
HO OH
HO
F
O
How many chiral carbon atoms are there in a molecule of the drug?
A 5
B 6
C 7
D 8
Your answer
[1]
