Question
Download Solution PDFThe one which is a uni-molecular reaction is -
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Unimolecular Reactions
- A unimolecular reaction is a type of reaction in which a single reactant molecule undergoes a transformation to form products.
- These reactions typically involve the breaking of a bond within a single molecule or an internal rearrangement.
- In kinetic terms, unimolecular reactions follow first-order kinetics.
EXPLANATION:
- Option 1: \(N_2O_5 \rightarrow N_2O_4 + \frac{1}{2} O_2\) is a unimolecular reaction because a single molecule of \(N_2O_5\) decomposes into products.
- Option 2: \(H_2 + Cl_2 \rightarrow 2HCl\) is a bimolecular reaction involving two reactant molecules.
- Option 3: \(2HI \rightarrow H_2 + I_2\) is also a bimolecular reaction since it involves two molecules of HI reacting together.
- Option 4: \(PCl_3 + Cl_2 \rightarrow PCl_5\) is a bimolecular reaction involving two different reactant molecules.
The correct answer is (1) \(N_2O_5 \rightarrow N_2O_4 + \frac{1}{2} O_2\).
Last updated on Jun 23, 2025
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