What is the molecularity of each step in the following reaction sequence? Step 1

Question

What is the molecularity of each step in the following reaction sequence? Step 1a: Cl2 ? 2Cl
Step 1b: 2Cl ? Cl2
Step 2: Cl + CHCl3 ? HCl + CCl3
Step 3: Cl + CCl3 ? CCl3

Answers:
a) Step 1a: Unimolecular, Step 1b: Bimolecular, Step 2: Bimolecular, Step 3: Bimolecular

b) Step 1a: Bimolecular, Step 1b: Bimolecular, Step 2: Bimolecular, Step 3: Bimolecular

c) Step 1a: Unimolecular, Step 1b: Unimolecular, Step 2: Bimolecular, Step 3: Bimolecular

d) Step 1a: Bimolecular, Step 1b: Bimolecular, Step 2: Bimolecular, Step 3: Unimolecular

Explanation / Answer

The molecularity is the number of molecules on the reactant side of an elementary reaction.

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