Question

photochemistry deals with the study of a) photos
B)photons
C )absorption of Uv light
d)absorption of Ir light ​

Answer 1

The correct answer is option (c) absorption of UV light.

• Photochemistry is a branch of chemistry involved in the chemical reactions of light. Typically, the term is used to describe chemical reactions caused by the absorption of ultraviolet (wavelengths from 100 to 400 nm), visible light (400–750 nm), or infrared radiation (750–2500 nm).
• In nature, photochemistry is very important as it is the basis for photosynthesis, vision, and the formation of vitamin D in sunlight. Photochemical reactions continue differently than temperature-driven reactions.
• Photochemical methods reach the middle of the high-potential thermal energy, thus overcoming major open barriers in a short period of time, and allowing otherwise inaccessible reactions through thermal processes. Photochemistry is also destructive, as evidenced by the destruction of plastic images.

Answer 2

Answer:

The correct answer is Photons i.e. option (b).

Explanation:

• Photochemistry deals with the study of those reactions that come into action by absorption of light and light contain packets of energy called photons.

• The radiations in the range of visible region and ultraviolet region are chiefly involved.

• The photons collide and transfer energy to atoms or molecules to bring them to excited electronic states.
• The photosynthesis, vision, and synthesis of vitamin D have the basis of photochemistry involved in these processes.