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OCR A Level Chemistry A H432/02 Synthesis and analytical techniques June 2024 Exam Question paper Authentic Marking Scheme Attached $5.49   Add to cart

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OCR A Level Chemistry A H432/02 Synthesis and analytical techniques June 2024 Exam Question paper Authentic Marking Scheme Attached

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  • Course
  • OCR A-LEVEL CHEMISTRY
  • Institution
  • OCR A-LEVEL CHEMISTRY

OCR A Level Chemistry A H432/02 Synthesis and analytical techniques June 2024 Exam Question paper Authentic Marking Scheme Attached

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  • May 29, 2024
  • 68
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
  • OCR A-LEVEL CHEMISTRY
  • OCR A-LEVEL CHEMISTRY
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RevisionKing
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:
* 9 1 0 1 3 1 4 6 1 9 *




• the Data Sheet for Chemistry A
You can use:
• 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 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 [601/5255/2] OCR is an exempt Charity
DC (ST/SG) 301077/4 Turn over

, 2
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]




© OCR 2022

, 3
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 2022 Turn over

, 4
6 Which process has the highest atom economy for preparing ethene, C2H4?

In each process, assume that ethene is the only product that is used.

A C10H22 3C2H4 + C4H10

B C6H14 2C2H4 + C2H6

C C2H5Cl C2H4 + HCl

D C2H5OH C2H4 + H2O


Your answer
[1]


7 Complete combustion of 0.050 mol of an alkane produces 5.40 g of H2O.

What is the molecular formula of the alkane?

A C 2H 6

B C 3H 8

C C4H10

D C5H12


Your answer
[1]




© OCR 2022

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