Name the following compound:
CH2= CH2 – CH2 - CH3
CH3
2-methylbutene
2-methylbutyne
2-methyl-1-butane
2-methyl-1-butene

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

answerleaving cheese out to get moldy;