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Question
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Catalyst
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Solution
Catalyst:
It is a substance which alters the rate of the reaction [i.e. increases or decreases the rate] without taking part in the reaction.It itself remains chemically unchanged at the end of the reaction.
Example: Catalytic oxidation of ammonia – using catalyst platinum
\[\ce{4NH3 + 5O2 ->[Pt][800°C] 4NO + 6H2O + \triangle}\]
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