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Byju's Answer
Standard XII
Chemistry
Physical Properties of Aromatic Compounds
Arrange the f...
Question
Arrange the following (w, x, y, z,) in decreasing order of their boiling points:
A
w
>
x
>
z
>
y
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B
w
>
x
>
y
>
z
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C
w
>
z
>
y
>
x
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D
w
>
z
>
x
>
y
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Solution
The correct option is
D
w
>
z
>
x
>
y
Solution of
H
−
bonding
∝
boiling point (or vice-versa)
B
P
:
−
O
−
H
>
−
N
−
H
>
N
−
C
H
3
<
−
O
−
C
H
3
H
−
bond:
−
O
H
>
−
N
H
>
B
P
:
w
>
z
>
x
>
y
Therefore,
E
.
N
.
:
O
>
N
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Similar questions
Q.
Arrange the following (w, x, y, z) in decreasing order of their boiling points:
Q.
x + y + z + w = 2
x − 2y + 2z + 2w = − 6
2x + y − 2z + 2w = − 5
3x − y + 3z − 3w = − 3
Q.
If
w
<
x
<
z
and
w
<
y
<
z
, which of the following statements must be true?
I.
w
<
z
II.
x
<
y
III.
y
<
z
Q.
2x − 3z + w = 1
x − y + 2w = 1
− 3y + z + w = 1
x + y + z = 1
Q.
Write the correct reactivity order towards photochemical chlorination.
(X)
C
H
3
−
C
H
2
−
C
H
2
−
C
H
2
−
C
H
3
(Y)
C
H
3
−
C
H
3
|
C
H
−
C
H
2
−
C
H
3
(Z)
C
H
3
−
C
H
3
|
C
|
C
H
3
−
H
(W)
C
H
3
−
C
H
3
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