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Summary

Summary OCR A Level Chemistry Reaction Notes

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This document is crucial for A Level Chemistry students, highlighting every single reaction you need to master for your exams. It meticulously covers key reaction types, including acid-base neutralizations, which form the foundation of many chemical processes, and redox reactions, critical for understanding oxidation states and electron transfer. Pay particular attention to precipitation reactions, which often appear in exam questions due to their practical significance, and combustion reactions, both complete and incomplete, which are vital for grasping energy changes. Thermal decomposition and hydrolysis reactions are also emphasized, given their frequent application in various contexts. Organic reactions, such as addition, substitution, and elimination, are thoroughly explored with examples to ensure a solid understanding. This document is designed to provide a clear, focused overview, with practical examples and model questions to help you excel in your exams by mastering these crucial reactions.

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Study Level
A/AS Level
Examinator
OCR
Subject
Chemistry A
Unit
Reactions
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Uploaded on
September 12, 2024
File latest updated on
September 12, 2024
Number of pages
8
Written in
2021/2022
Type
Summary

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Content preview

08th Chemistry reactions
1 Benzene
1 Nitration
Generationofelectrophile
HNO Has E NottHao HSOI
Electrophilic substitution
N
no
Ethno at
horse shoe
intermediate

regenerationof catalyst
HSOI H H SO
Overall
HNO NO
Hao

2 Halogenation
Generationofelectrophile
AlBr Br AlBri Brt
Electrophilic substitution
Brt
Br
at
Iggy
Br
horse shoe


regenerationof catalyst
AlBrit H ALBr HBr
Overall
Br
Bra 7 T HBr

3 Friedel Crafts alkylation
Generationofelectrophile
t ALCE
Éetrophitic's'Esitt
ME 3 CH
EatCH Ht
horse shoe
intermediate

regenerationof catalyst
AICC t H ALCL HCL
Overall
Aha
CHza I CH HCL

, 4 Friedel Crafts acylation
Generationofelectrophile
Aichi
Éetointic's'Esitgot
to
gg
horse shoe
o
I
regenerationof catalyst
AICC t H ALCL HCL
Overall
CHCool Alas I I 4cL

2 Phenol
1 reaction with Br
OH OH
Br
3Br T 34Br
Br
2 Reaction with NaOH
OH o Nat
NaOH H2O


3 Dilute HN0z
OH OH
N
UNO Hao
OR OH



too

4 Concentrated H NO
OH OH

311NO É 3420
NO

5
Acyl chlorides
OH o

Ya HCL

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