Question
What are photosensitised chemical reactions? Explain giving suitable examples.
Answer :
Word Count : 237
____ _______ __________ _____ ____ __________ _________ _________.
________ _________ __________ ______ ________.
_____ __________ ___ ___ ___ _______ _____ ___ __________ _______ _________.
________ _____ ___ ________ __________ ________ ____ __________ _______.
_________ ______ ________ ___ __________ _____ ____ __________ _______ ___.
_________ ________ _____ ____ _____ _____ ___.
__________ _____ _______ _______ ____ _______ __________ _________ __________ __________.
______ ________ _____ _________ ______ __________ __________ _________ __________ ____ _____ _____.
_______ ______ _______ ______ ____ _______.
____ __________ _______ __________ ___ ________ _______ _____.
______ __________ _______ __________ _____ _______.
___ ______ _________ ________ _____ _________ _______ _________.
___ ___ _______ ________ __________ ________.
__________ __________ ______ _______ ______ ____ _____ __________ ______ _________ ___ ______.
_____ _____ _________ ____ _______ ____ _______.
_______ _______ __________ _________ _________ ____.
__________ __________ ____ ______ ___ ______ _________.
_______ ____ ___ ________ _________ ____.
_________ _____ ____ ____ _________ _____ __________ __________.
Skip in 10
In photosensitized reactions, the absorbed photon excites the sensitizer (abbreviated Sen in Figure 1) to one or more energy-rich state(s) (indicated by an asterisk, Sen*). The excited Sen* undergoes internal reactions that ultimately result in the chemical alteration of the substrate. This can occur in one of two types of reactions (Figure 1
Photosensitization Reactions.
In the reaction, the excited sensitizer reacts directly with the substrate, in a one-electron transfer reaction, to produce a radical or radical ion
________ _________ __________ ______ ________.
_____ __________ ___ ___ ___ _______ _____ ___ __________ _______ _________.
________ _____ ___ ________ __________ ________ ____ __________ _______.
_________ ______ ________ ___ __________ _____ ____ __________ _______ ___.
_________ ________ _____ ____ _____ _____ ___.
__________ _____ _______ _______ ____ _______ __________ _________ __________ __________.
______ ________ _____ _________ ______ __________ __________ _________ __________ ____ _____ _____.
_______ ______ _______ ______ ____ _______.
____ __________ _______ __________ ___ ________ _______ _____.
______ __________ _______ __________ _____ _______.
___ ______ _________ ________ _____ _________ _______ _________.
___ ___ _______ ________ __________ ________.
__________ __________ ______ _______ ______ ____ _____ __________ ______ _________ ___ ______.
_____ _____ _________ ____ _______ ____ _______.
_______ _______ __________ _________ _________ ____.
__________ __________ ____ ______ ___ ______ _________.
_______ ____ ___ ________ _________ ____.
_________ _____ ____ ____ _________ _____ __________ __________.
IGNOU ACADEMY
Your IGNOU journey, made easier.
- Solved Assignments
- Study Notes
- Guess Papers
- Question Papers
Continue Reading — It's Free
Sign in with Google to unlock more of this answer.
✓ Free access
✓ Unlock up to 60% of the answer
✓ No payment required
✓ Unlock up to 60% of the answer
✓ No payment required
Quick Google sign-in. No separate registration form.