Chemistrymedium · Past Paper

What is the role of sunlight in the reaction between Methane and Chlorine?

AIt acts as a reactant
BIt provides the activation energy (photochemical initiation)
CIt acts as a product
DIt cools the reaction

✓ Correct Answer: BIt provides the activation energy (photochemical initiation)

This is a photochemical substitution reaction where light is needed to break the Cl-Cl bond.

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