1) The IUPAC name of is A) 4-ethyl-5,6,7,9-tetramethyldeca-2,9-diene B) 7-ethyl-2,4,5,6-tetramethyldeca-1,8-diene C) 7-ethyl-2,4,5,6-tetramethyldeca-1,7-diene D) 7-(1-propenyl)-2,3,4,5-tetramethyl non-1-ene Answer: Option BExplanation: The correct IUPAC name is 7-ethyl-2,4,5,6-tetramethyldeca-1,8-diene