1.What is "super halogen"? Why it is called so?Write its reaction with dilute sodium hydroxide.
2.What is Photosentization?Give an example.
1. F is called super halogen because it is most reactive halogen.
Reaction of fluorine with NaOH
2F2 + 4NaOH >> 4NaF + O2 + 2H2O
2. Photosensitization, the process of initiating a reaction by the use of a substance which is capable of absorbing light energy. This energy is then used to carry out the reaction.
For example. Photosynthesis is a photosensitized reaction in which chlorophyll is used as photosensetizer.