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Question
Chemistry
Which one of the following is an example for homogeneous catalysis?
Q. Which one of the following is an example for homogeneous catalysis?
3684
222
AIIMS
AIIMS 2014
Surface Chemistry
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A
Manufacture of ammonia by Haber's process
18%
B
Manufacture of sulphuric acid by contact process
16%
C
Hydrogenation of oil
19%
D
Hydrolysis of sucrose in presence of dilute hydrochloric acid
47%
Solution:
In homogeneous catalysis, reactants and catalyst are in the same phase.
(a)
S
O
2
(
g
)
+
O
2
(
g
)
Pt
(
s
)
S
O
3
(
g
)
(Contact process)
It is an example of heterogeneous catalysis.
(b)
N
2
(
g
)
+
H
2
(
g
)
F
e
(
s
)
2
N
H
3
(
g
)
(Haber's process)
It is an example of heterogeneous catalysis.
(c)
C
12
H
22
O
11
(
a
q
)
+
H
2
O
(
a
q
)
H
Cl
(
a
q
)
C
6
H
12
O
6
+
C
6
H
12
O
6
It is an example of homogeneous catalysis.
O
i
l
(
l
)
+
H
2
(
g
)
(
H
a
r
d
e
nin
g
)
Pt
(
s
)
f
a
t
Thus, it is also an example of heterogeneous catalysis.