text: what is the structure of 2-methylpentan-3-one? is possible drawn out thanks! it is a ketone(rcor), the carbonyl group c=o is c3, methyl goroup ch3 subsuituetd in c2 , the compound is penta means five carbon atoms so the structure is: ch3-ch(ch3)coch2ch3,  it is also named ethyl-isopropylketone