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Structural Identification and Practical Organic Chemistry
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Degree of unsaturation and spectroscopic clues
NEET level
Single correct option
Difficulty 1 of 3
si060
The degree of unsaturation of
C
X
3
H
X
5
Cl
is
A
0
B
1
C
2
D
3
Answer: B
A halogen is counted like hydrogen:
(
2
×
3
+
2
−
5
−
1
)
/2
=
1
. So there is one double bond or one ring.
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