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Byju's Answer
Standard XII
Chemistry
Dehydration of Alcohols
Explain why ...
Question
Explain why
(
C
H
3
)
3
+
C
is more stable than
C
H
3
+
C
H
2
and
+
C
H
3
is the least stable cation.
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Solution
(
C
H
3
)
3
+
C
is a highly stable
C
H
3
+
C
H
2
+
C
H
3
because of 9 hyper conjugative hydrogens and positive inductive effect of 3-methyl groups.
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Similar questions
Q.
Explain why
(
C
H
3
)
3
C
⊕
is more stable than
C
H
3
⊕
C
H
2
and
⊕
C
H
3
is less stable.
Q.
Assertion :
M
e
3
¨
⊖
C
is more stable than
¨
⊖
C
H
3
. Reason:
The +I effect of the three
M
e
groups in
M
e
3
¨
⊖
C
tends to make it more stable than
¨
⊖
C
H
3
.
Q.
The carbocation is
(
C
H
3
)
−
C
+
H
−
(
C
H
3
)
less stable than:
Q.
Consider the following statements :
(a)
C
H
3
O
⊕
C
H
2
is more stable than
C
H
3
⊕
C
H
2
(b)
M
e
2
⊕
C
H
is more stable than
C
H
3
C
H
2
⊕
C
H
2
(c)
C
H
2
=
C
H
−
⊕
C
H
2
is more stable than
C
H
3
C
H
2
⊕
C
H
2
(d)
C
H
2
=
⊕
C
H
is more stable than
C
H
3
⊕
C
H
2
Out of these statements :
Q.
Assertion :
C
H
3
C
H
3
|
|
C
H
3
−
C
−
C
H
2
−
B
r
+
N
a
O
H
⟶
C
H
3
−
C
−
C
H
2
−
C
H
3
|
|
C
H
3
O
H
Reason: It follows with formation of more stable carbocation.
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