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Question
Chemistry
The reaction of sodium ethoxide with iodoethane to form diethyl ether is termed as
Q. The reaction of sodium ethoxide with iodoethane to form diethyl ether is termed as
1945
201
UPSEE
UPSEE 2009
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A
electrophilic substitution
B
nucleophilic substitution
C
electrophilic addition
D
radical substitution
Solution:
When sodium ethoxide reacts with iodoethane, diethyl ether is obtained (Williamson's synthesis). The mechanism of this reaction is as follows
C
2
H
5
ON
a
⇌
C
2
H
5
O
−
+
N
a
+
transition state
[
C
2
H
5
−
O
δ
−
−
C
2
H
5
−
I
]
Fast
C
2
H
5
O
C
2
H
5
+
I
−
Since, the reaction involves substitution of a group by a nucleophile, it is an example of nucleophilic substitution reaction.
