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Structural Identification and Practical Organic Chemistry
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Degree of unsaturation and spectroscopic clues
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Difficulty 1 of 3
si056
The degree of unsaturation of benzene,
C
X
6
H
X
6
, is
A
4
B
3
C
5
D
6
Answer: A
Degree of unsaturation
=
(
2
C
+
2
+
N
−
H
−
X
)
/2
=
(
14
−
6
)
/2
=
4
. This equals one ring plus three C=C bonds.
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