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Byju's Answer
Standard XII
Chemistry
Positional Isomerism
What characte...
Question
What characteristic is the best common to both
c
i
s
−
2
−
b
u
t
e
n
e
and
t
r
a
n
s
−
2
−
b
u
t
e
n
e
?
A
Boiling Point
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B
Dipole moment
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C
Heat of hydrogenation
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D
Product of hydrogenation
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Solution
The correct option is
D
Product of hydrogenation
Both
c
i
s
−
2
−
b
u
t
e
n
e and
t
r
a
n
s
−
2
−
b
u
t
e
n
e
will give n-Butane as a product of hydrogenation as shown in the figure.
But the boiling point, dipole moment, and the heat of hydrogenation are different for both. They are greater in the case of cis-2-butene.
Thus, option D is correct.
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Similar questions
Q.
What is the characteristic property common to both cis-2-butene , trans-2- butene?
a) boiling point. b) dipole moment
c)heat of hydrogenation. d) product of hydrogenation
What do options c and d mean?
Q.
The common characteristic of cis-2-butene and trans-2-butene is:
Q.
(i) Cis - 2 - butene
→
trans-2-butene,
△
H
1
(ii) Cis - 2 - butene
→
1 - butene,
△
H
2
(iii) Trans-2-butene is more stable than cis - 2 - butene.
(iv) Enthalpy of combustion of 1 - butene,
△
H
=
−
649.8
k
c
a
l
/
m
o
l
(v)
9
△
H
1
+
5
△
H
2
=
0
(vi) Enthalpy of combustion of trans 2 - butene,
△
H
=
−
647.0
k
c
a
l
/
m
o
l
.
The value of
△
H
1
and
△
H
2
in kcal/mol are
Q.
What is the relationship between
trans
-2-butene and
cis
-2-butene?
Q.
There are some alkenes are given as follow:
2-methyl propene, cis-2-butene, trans-2-butene
Which of the following is the correct order for increasing order of reactivity for acid catalyzed hydration?
1) trans-2-butene< cis-2-butene < 2-methyl propene
2) cis-2-butene< trans-2-butene < 2-methyl propene
3) 2-methyl propene < trans-2-butene < cis-2-butene
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