题目内容
A.CH4 B.C2H4 C.C2H6 D.C6H6
A.C6H6 B.C2H6 C.C2H4 D.C4H6
A.CH4 B.C2H6 C.C3H8 D.C6H6
等质量的下列烃完全燃烧时所需氧气最多的是 …( )
A.C6H6 B.C2H6 C.C2H4 D.C4H6