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Structural Identification and Practical Organic Chemistry
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Degree of unsaturation and spectroscopic clues
JEE Main level
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Difficulty 2 of 3
si077
Which of the following compounds have a degree of unsaturation equal to 4?
A
methylbenzene,
C
X
6
H
X
5
CH
X
3
B
phenol,
C
X
6
H
X
5
OH
C
cyclohexanol,
C
X
6
H
X
11
OH
D
styrene,
C
X
6
H
X
5
CH
=
CH
X
2
Answer: A, B
C
X
7
H
X
8
:
(
16
−
8
)
/2
=
4
.
C
X
6
H
X
6
O
:
(
14
−
6
)
/2
=
4
(oxygen is ignored).
C
X
6
H
X
12
O
: 1.
C
X
8
H
X
8
: 5. So methylbenzene and phenol.
Practice Structural Identification and Practical Organic Chemistry
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