Question

10 example of the photo chemical reactions .

Answer 1

Answer:

• Photosynthesis: plants use solar energy to convert carbon dioxide and water into glucose and oxygen.

• Human formation of vitamin D by exposure to sunlight.

• Bioluminescence: e.g. In fireflies, an enzyme in the abdomen catalyzes a reaction that produced light.[8]

• Polymerizations started by photoinitiators, which decompose upon absorbing light to produce the free radicals for radical polymerization.

• Photodegradation of many substances, e.g. polyvinyl chloride and Fp. Medicine bottles are often made with darkened glass to prevent the drugs from photodegradation.

• Photodynamic therapy: light is used to destroy tumors by the action of singlet oxygen generated by photosensitized reactions of triplet oxygen. Typical photosensitizers include tetraphenylporphyrin and methylene blue. The resulting singlet oxygen is an aggressive oxidant, capable of converting C-H bonds into C-OH groups.

• Photoresist technology, used in the production of microelectronic components.

• Vision is initiated by a photochemical reaction of rhodopsin.[9]

• Toray photochemical production of ε-caprolactame.[10]

• Photochemical production of artemisinin, anti-malaria drug.

Answer 2

☆Photosynthesis: plants use solar energy to convert carbon dioxide and water into glucose and oxygen.

☆Human formation of vitamin D by exposure to sunlight.