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Byju's Answer
Standard XII
Chemistry
Concentration Terms - An Introduction (w/w etc)
Which alkyl g...
Question
Which alkyl groups decolourises bromine water and does not give white precipitate with
A
g
N
O
3
?
A
C
4
H
8
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B
C
2
H
2
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C
C
2
H
4
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D
C
2
H
6
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Solution
The correct options are
A
C
4
H
8
B
C
2
H
2
C
C
2
H
4
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0
Similar questions
Q.
K
p
values for,
C
2
H
4
+
H
2
⇌
C
2
H
6
, is
5
×
10
18
a
t
m
−
1
and
K
p
for,
C
2
H
2
+
H
2
⇌
C
2
H
4
, is
5
×
10
26
a
t
m
−
1
at
50
. If
K
p
for :
2
H
2
+
C
2
H
2
⇌
C
2
H
6
is
x
×
10
45
, then
10
x
is__________.
Q.
Which of the compounds is soluble in conc.
H
2
S
O
4
, decolourises Bromine
C
C
l
4
and give a white precipitate with
A
g
N
O
3
in
N
H
4
O
H
but does not give a precipitate with
A
g
N
O
3
in alcohol?
Q.
Calculate the enthalpy of hydrogenation for the reaction ,
C
2
H
4
+
H
2
⟶
C
2
H
6
. Given that the enthalpy of combustion of Ethane is
C
2
H
4
;
C
λ
H
6
.
&
H
2
a
r
e
−
140.1
K
g
,
−
1550
K
g
&
−
286.0
K
g
|
m
o
l
Q.
For the gas phase reaction,
C
2
H
4
+
H
2
⇌
C
2
H
6
,
(
Δ
H
=
−
32.7
k
c
a
l
)
carried out in a vessel, the equilibrium concentration of
C
2
H
4
can be increased by
:
Q.
For the gas phase reaction,
C
2
H
4
+
H
2
⇌
C
2
H
6
[
Δ
H
o
=
−
136.8
k
J
m
o
l
−
1
]
, is carried out in vessel, the equilibrium concentration of
C
2
H
4
can be increased by:
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