A photochemical reaction is _______________ light?
Correct answer: A. Initiated by
- A. Initiated by
- B. Accompanied with emission of
- C. Catalysed by
- D. Used to convert heat energy into
Explanation
Photochemical reactions obtain the initiating energy from absorbed radiation, so light starts the reaction by exciting molecules or producing reactive species. Light is not necessarily a catalyst or an emitted product.
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