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Explain Different Types of Photochemical Reactions

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These reactions are sometimes described as examples of photocatalysis - reactions catalysed by light. Migration of a σ-bond. Photochemical Reaction Definition Theoretical Concepts They are electrocyclic ring opening in the vitamin D synthesis and thermoreversible hydrogen shift in the ultraviolet stabilization of plastics. . These reactions involve absorption or evolution of heat energy. May be intermolecular or intramolecular. To learn more about types of organic reactions read the below article. A cyclic product is formed. Commonly these processes are classified depending on the type of chemistry induced by photon absorption eg photoisomerization hydrogen atom abstraction photosensitized reactions etc. Each distinct energy corresponds to an electronic state of the molecule. Addition reactions elimination reactions substitution reactions pericyclic events rearrangement reactions photochemical reactions an...
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