Chemistry
Grade-8
Easy
Question
The chemical reaction which take place by the action of light is called as ____
- Electrolysis
- Photochemical reaction
- Exothermic reaction
- Decomposition
Hint:
The reaction which takes place in the presence of sunlight is the reaction that is used by plants and other organisms to convert light energy into electrical energy.
In this reaction, light energy is captured and it is used to convert water and carbon dioxide into oxygen and other organic compounds which are rich in energy.
The correct answer is: Photochemical reaction
The chemical reaction which takes place by the action of light is called a Photochemical reaction.
- The area of chemistry known as photochemistry is focused on understanding the rates and processes of chemical reactions that occur when reactants are exposed to light radiation.
- While the dark reaction of the molecule is the thermal reaction of the ground state, the photochemical reaction is actually the thermal reaction of the electronically excited state of the molecule.
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