Question

Give its IUPAC name
O
2-Butyl-1-Ethyl Cyclobutane
O
1-Butyl-2-Ethyl Cyclobutane
O
1-Butyl-4-Ethyl Cyclobutane
O
1-Pentyl-2-Ethyl Cyclobutane​

Answer 1

Answer:

option 2 is absolutely right