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OCR A LEVEL JUNE 2022 CHEMISTRY A PAPER 2 EXAM QUESTION PAPER
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OCR A LEVEL JUNE 2022 CHEMISTRY A PAPER 2 EXAM QUESTION PAPER
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OCR A LEVEL JUNE 2022CHEMISTRY A PAPER 2
EXAM QUESTION PAPER
, 3
OCR A LEVEL JUNE 2022
CHEMISTRY A PAPER 2
EXAM QUESTION PAPER
H432/02 Synthesis and analytical techniques
, 3
OCR A LEVEL JUNE 2022
CHEMISTRY A PAPER 2
EXAM QUESTION PAPER
H432/02 Synthesis and analytical techniques
, 3
H432/02 Synthesis and analytical techniques
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]
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