Question

Grive
example
of photo chemical reactions​

Answer 1

Answer:

Photoredox catalysis is the application of photochemistry to carry out redox reactions catalytically. For example, if sunlight were absorbed by a material such as a semiconductor, resulting in excitation of an electron, the resulting species may have the energy to reduce the protons in water to dihydrogen.

Answer 2

Answer:

Photochemical reaction is a reaction which takes place in the presence of light

For example

2AgCl ---------> 2Ag + Cl in the presence of sunlight

The silver Chloride turns grey

Explanation:

A Photochemical reaction is a reaction which takes place when a chemical process absorbs light energy as its energy source. The example is photosynthesis.  

 In photosynthesis, light energy is captured by the chlorophyll present in the thylakoids of the chloroplast in order to produce photons to facilitate the conversion of water and carbon dioxide into sucrose or starch.  

 The photons from the light energy split water and enable ATP production that drives the entire process.