a. C4H10
CH3 - CH2 - CH2 - CH3 => Butan
CH3 - CH(CH3) - CH3 => 2-Metyl Propan
b. C5H12
CH3 - CH2 - CH2 - CH2 -CH3 => Pentan
CH3 - CH2 - CH(CH3) - CH3 => 2-Metyl butan
CH3 - C(CH3)2 - CH3 => 2,2- Đimety propan
d. C6H14
CH3 - CH2 - CH2 - CH2 - CH2 - CH3=> Hexan
CH3-CH(CH3) – CH(CH3) - CH3 => 2,3-Đimetyl butan
CH3 - C(CH3)2 - CH2 - CH3 => 2,2 Đimetyl Butan