Answer:
The correct explanation for why radical iodination is not a practical synthetic method is:
C) Iodine radicals are unstable
Explanation:
In radical iodination reactions, iodine radicals are generated to substitute hydrogen atoms in organic compounds with iodine atoms. However, iodine radicals tend to be unstable compared to other halogen radicals (e.g., chlorine or bromine radicals). This instability can lead to unwanted side reactions or difficulties in controlling the reaction selectivity and efficiency. As a result, radical iodination is not commonly used as a synthetic method in organic chemistry.
