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Byju's Answer
Standard XII
Chemistry
Preparation of Benzene and Homologues
C2H2→ Trans...
Question
C
2
H
2
→
T
r
a
n
s
−
2
−
p
e
n
t
e
n
e
The reagents mentioned below are required to undertake the given reaction.
R
e
a
g
e
n
t
s
: 1. excess
N
a
N
H
2
2. excess MeBr 3.
N
a
N
H
2
4. EtBr 5.
H
2
/
L
i
n
d
l
a
r
′
s
c
a
t
a
l
y
s
t
If the statement is true enter 1, else enter 0.
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Solution
Acetylene reacts with soda amide followed by methyl bromide to form prop-1-yne.
This is followed by the action of soda amide and ethyl bromide to form pent-2-yne.
Reduction with sodium in liquid ammonia gives trans-2-pentene.
Hence, the given statement is
t
r
u
e
.
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