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Byju's Answer
Standard XII
Chemistry
Dipole Moment
Rank the foll...
Question
Rank the following cations in decreasing order of stability.
(
C
H
3
)
2
C
H
−
C
H
2
−
C
+
H
2
C
H
3
−
C
+
H
−
C
H
(
C
H
3
)
2
C
H
3
−
C
+
(
C
H
3
)
−
C
H
2
−
C
H
3
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Solution
C
H
3
−
C
H
|
−
+
1
C
H
2
⟶
+
C
H
2
C
H
3
(
A
)
C
H
3
C
H
3
+
1
⟶
+
1
C
H
+
1
⟵
|
C
H
|
(
B
)
C
H
3
+
1
C
H
3
⟶
+
C
⟵
+
1
C
H
2
−
C
H
3
↑
C
H
3
+
1
(
C
)
The Hyper conjugation and positive inductive effect is more in compound
3
r
d
which increases the stability of carbocation.
Decrease order of stability-
C
H
3
C
H
3
C
H
3
−
+
C
|
−
|
C
H
2
>
C
H
3
−
+
C
H
−
|
C
H
|
>
C
H
3
−
C
H
|
−
C
H
2
−
+
C
H
2
C
H
3
C
H
3
C
H
3
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Q.
Homolytic fission of the following alkanes forms free radicals
C
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−
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,
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The increasing order of stability of the radicals is:
Q.
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≡
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−
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Q.
A)
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H
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B)
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B
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−
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H
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D)
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H
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Arrange the following carbocations in decreasing order of their stability:
Q.
Homolytic fission of the following alkanes forms free radicals
C
H
3
−
C
H
3
,
C
H
3
−
C
H
2
−
C
H
3
,
(
C
H
3
)
2
C
H
−
C
H
3
,
C
H
3
−
C
H
2
−
C
H
(
C
H
3
)
2
.
The increasing order of stability of the radicals is:
Q.
Decreasing order of stability of following alkenes is..
(i)
C
H
3
−
C
H
=
C
H
2
(ii)
C
H
3
−
C
H
=
C
H
−
C
H
3
(iii)
C
H
3
−
C
|
C
H
3
=
C
H
−
C
H
3
(iv)
C
H
3
−
C
H
3
|
C
=
C
H
3
|
C
−
C
H
3
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