Final answer:
The packing group for Ethyl chloroacetate indicates its level of hazard for transportation, but the given information is focused on chemical structures and IUPAC nomenclature, not on the classification for transportation safety.
Step-by-step explanation:
The question is about determining the packing group for Ethyl chloroacetate, which is related to its hazardous nature and how it should be safely transported and handled.
The provided information, however, seems to be unrelated to the packing group classification, as it discusses IUPAC nomenclature and structures of various chemicals. When classifying substances for transportation, the packing group can range from I (great danger) to III (minor danger) based on criteria like toxicity, flammability, and reactivity. To find the correct packing group for Ethyl chloroacetate, one would typically refer to specific chemical databases or regulatory lists provided by transportation authorities such as the DOT or IATA, which are beyond the scope of this answer and not included in the provided reference information.