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Question
Chemistry
In which of these process platinum is used as a catalyst?
Q. In which of these process platinum is used as a catalyst?
2049
224
Haryana PMT
Haryana PMT 2006
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A
Oxidation of ammonia to form
H
N
O
3
B
Hardening of oils
C
Production of synthetic rubber
D
Synthesis of methane
Solution:
Platinum acts as catalysts in the oxidation of ammonia to form nitric oxide. This reaction is used in the Ostwalds method of nitric acid preparation.
4
N
H
3
+
5
O
2
Pt
75
0
∘
C
4
NO
+
6
H
2
O
4
NO
+
O
2
→
2
N
O
2
4
N
O
2
+
O
2
+
2
H
2
O
→
4
H
N
O
3