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Created by
Ashba Zubair
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Cards (11)
H3C
C
H
H
Br

+ :
Br -
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H3C
C
H
H
CN
+ :Br -
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STEP ONE Initiatio
n
Br2
2Br
.
Essential condition:
UV light
CH3CH3
+ Br. HBr + CH3CH2.
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STEP TWO Propagation
CH3CH2. + Br2 CH3CH2Br + Br.
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STEP THREE Termination
CH3CH2. + Br. CH3CH2Br
CH3CH2. + CH3CH2. CH3CH2CH2CH3
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Mechanism Summary for A-level AQA Chemistry
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Acid catalysed elimination mechanism: alcohols alkenes
The H+ comes
from the
conc H2SO4 or
conc H3PO4
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Acid catalysed addition mechanism for hydration of ethene
The
H+
comes from
the conc
H3PO4
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Equation for formation of electrophile
HNO3
+
2H2SO4
NO2
+ + 2HSO4
+
H3O+
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Equation for formation of the electrophile.
AlCl3 + CH3COCl [CH3CO]+ + [AlCl4]-
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Reaction Summary for
A-level AQA Chemistry
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