Which of following is not correct IUPAC name?

1.	Which of following is not correct IUPAC name?
Answer» `underset("Ethyl butanoate")(CH_(3)-CH_(2)-CH_(2)-COO-CH_(2)-CH_(3))` `underset("3-Methyl butanal")(CH_(3)-underset(underset(CH_(3))(\|))(C H)-CH_(2)-CHO)` `underset("2-Methyl, 3-butanol")(CH_(3)-underset(underset(OH)(\|))(C H)-underset(underset(CH_(3))(\|))(CH)-CH_(3))` `underset("2-Methyl-3-pentanone")(CH_(3)-underset(underset(CH_(3))(\|))(CH)-underset(underset(O)(\|\|))(C )-CH_(2)-CH_(3))` ANSWER :C

Discussion