Question
Chemistry Question on Chemical Kinetics
The molecularity of the following elementary reaction is NH4NO2 —> N2 + 2H20
A
Zero
B
One
C
Two
D
Three
Answer
One
Explanation
Solution
The molecularity of an elementary reaction refers to the number of molecules or atoms that participate as reactants in an individual step of the reaction.
In the given elementary reaction: NH4NO2 → N2 + 2H2O
We can see that NH4NO2 is the only reactant involved. It dissociates directly to form N2 and 2H2O. Since only one molecule (NH4NO2) is participating in this step, the molecularity of the reaction is One.
Therefore, the correct answer is One.