A-Level化学例题解析及练习Isomers

知识点：Isomers

例题：

Kerosene is used as an aircraft fuel. Q is one of the molecules in kerosene and has the skeletal formula shown.

Other structural isomers of this molecule are also found in kerosene.

Which structure is a structural isomers of Q?

解析：答案D

Structural isomer: compounds with the same molecular formula but different structural formulae.

Q的skeletal formula数有几个顶点，即有几个C. (共有10个顶点，10个C)，longest straight