Question

Which of the following is a suitable condition for homolytic bond fission?
A. High temperature
B. Ultraviolet radiation
C. Polar solvent
D. All of these

Answer 1

Hint: Homolytic bond fission is a type of bond fission where the molecule is subjected to a high energy known as bond fission dissociation energy which results in the breaking of chemical bond which forms two new free radicals.

Complete step by step answer:
In the chemical reaction, usually bond breaking of the chemical bonds takes place to form new bonds. The breaking of chemical bonds usually covalent bonds are referred to as bond fission. There are mostly two types of bond fission are homolytic bond fission and heterolytic bond fission.
The homolytic bond fission is also known as homolytic cleavage or bond homolysis. In this bond fission dissociation of molecules takes place where each atom retained one electron. Hence when a neutrally charged molecule undergoes homolytic fission, two free radicals are formed as a product.
The energy required to execute the homolytic fission is known as bond dissociation energy for hemolytic fission.
Generally a very high amount of energy is required to break the bond in hemolytic fission. When the molecule is subjected to a high amount of ultraviolet radiation which is the electromagnetic radiation associated with the ultraviolet region of the electromagnetic spectrum, the chemical bond in the molecule breaks down to give two free radicals.
Thus, the suitable condition for hemolytic fission is ultraviolet radiation.
Therefore, the correct option is B.

Note:
When the compounds containing carbon are subjected to very high temperature in the absence of oxygen, then the breaking of chemical bonds is known as pyrolysis.