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Byju's Answer
Standard XII
Chemistry
Stability of Carbocation
Which of the ...
Question
Which of the following is not hypovalent a. CH_3^+ b. B_2H_6 c. NH_2^+ d. AlF_{
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Q.
In the given compound A,C and A,D are exbhits which of the following isomerism :
(a)
C
H
3
−
C
H
2
−
C
H
2
−
C
H
2
N
H
2
Butanamine
(
1
o
)
(b)
C
H
3
−
C
H
2
−
N
H
2
|
C
H
−
C
H
3
Butan-2-amine
(
1
o
)
(c)
C
H
3
−
C
H
3
|
C
H
−
C
H
2
−
N
H
2
2-Methylpropanamine
(
1
o
)
(d)
C
H
3
−
C
H
3
|
C
|
−
C
H
3
N
H
2
2-methylpropan-2-amine
(
1
o
)
(e)
C
H
3
−
C
H
2
−
C
H
2
−
N
H
−
C
H
3
N-methylpropanamine
(
2
o
)
Q.
What is the decreasing order of strength of the bases
O
H
−
,
N
H
−
2
,
H
C
≡
C
⊝
and
C
H
3
−
C
H
⊝
2
Q.
Which of the following lone-pair indicated is not involved in resonance?
(A)
C
H
2
=
C
H
−
.
.
N
H
−
C
H
3
(B)
C
H
2
=
C
H
−
.
.
O
.
.
−
C
H
3
(C)
C
H
2
=
C
H
−
.
.
O
.
.
−
C
H
=
C
H
2
(D)
C
H
2
=
C
H
−
N
H
2
Q.
In the given example B,C and B,D are
:
(a)
C
H
3
−
C
H
2
−
C
H
2
−
C
H
2
N
H
2
Butanamine
(
1
o
)
(b)
C
H
3
−
C
H
2
−
N
H
2
|
C
H
−
C
H
3
Butan-2-amine
(
1
o
)
(c)
C
H
3
−
C
H
3
|
C
H
−
C
H
2
−
N
H
2
2-Methylpropanamine
(
1
o
)
(d)
C
H
3
−
C
H
3
|
C
|
−
C
H
3
N
H
2
2-methylpropan-2-amine
(
1
o
)
(e)
C
H
3
−
C
H
2
−
C
H
2
−
N
H
−
C
H
3
N-methylpropanamine
(
2
o
)
Q.
C
H
3
−
N
H
|
|
C
(
1
)
−
N
H
2
,
C
H
3
−
C
H
2
(
2
)
−
N
H
2
(
C
H
3
)
2
(
3
)
N
H
,
C
H
3
−
O
|
|
C
(
4
)
−
N
H
2
The correct order of the basicities of the following compounds is:
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