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Byju's Answer
Standard XII
Chemistry
Preparation of Carboxylic Acids from Hydrocarbons
4-Pentenoic a...
Question
4-Pentenoic acid
S
O
C
l
2
−
−−−
→
(
X
)
Piperidine
−
−−−−−
→
(
Y
)
(
Y
)
i
.
L
A
H
−
−−−−−−
→
i
i
.
H
+
/
H
2
O
Identify final (major) product.
A
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B
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C
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D
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Solution
The correct option is
B
Lithium aluminium hydride, will not reduce isolated double bond.
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Similar questions
Q.
4- pentenoic acid when treated with
I
2
and
N
a
H
C
O
3
gives :
Q.
Write the structures of the given compounds whose IUPAC names are given as:
4-hydroxy-3-pentenoic acid
Q.
When 3-pentenoic acid is boiled with NaOH, then it forms
:
Q.
N
a
2
C
2
H
C
l
−
−
→
(
excess
)
N
a
N
H
2
−
−−−−−−−−−
→
(
excess
)
C
H
3
I
H
2
−
−−−−−−
→
P
d
−
B
a
S
O
4
i
.
O
3
−
−−−−−−
→
i
i
.
Z
n
−
H
2
O
Final product can be obtained by:
Q.
I
.
P
h
−
C
H
3
i
.
C
r
O
2
C
l
2
−
−−−−−−
→
i
i
.
H
+
/
H
2
O
I
I
.
P
h
−
C
C
l
3
K
O
H
−
−−
→
excess
I
I
I
.
P
h
−
C
H
2
O
H
P
C
C
−
−−
→
I
V
.
P
h
−
O
|
|
C
−
C
l
H
2
−
−−−−−−
→
P
d
−
B
a
S
O
4
V
.
P
h
−
C
≡
N
i
.
S
n
C
l
2
/
H
C
l
−
−−−−−−−
→
i
i
.
H
+
/
H
2
O
V
I
.
P
h
−
H
C
O
/
H
C
l
−
−−−−−−−
→
anhyd.
A
l
C
l
3
V
I
I
.
P
h
−
H
C
H
3
C
l
−
−−−−−−−
→
anhyd.
A
l
C
l
3
H
+
,
K
M
n
O
4
−
−−−−−−
→
Δ
Consider following reactions and give the number of reactions which prooduce benzaldehyde as final major product.
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