Giải bài 5 trang 139 - SGK môn Hóa học lớp 11 nâng cao

a. $\begin{align} & C{{H}_{3}}-\underset{|}{\mathop{C}}\,H-C{{H}_{2}}-C{{H}_{3}} \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{{H}_{3}} \\ \end{align}$;

b. $\begin{align} & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{{H}_{3}} \\ & C{{H}_{3}}-\underset{|}{\mathop{\overset{|}{\mathop{C}}\,}}\,-C{{H}_{3}} \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{{H}_{3}} \\ \end{align}$

c. $C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}$

d. $\begin{align} & C{{H}_{3}}-\underset{|}{\mathop{C}}\,{{H}_{2}}-\underset{|}{\mathop{C}}\,H-C{{H}_{3}} \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{{H}_{3}}\,\,\,\,\,\,\,\,\,C{{H}_{3}} \\ \end{align}$

e. $\begin{align} & C{{H}_{3}}-\underset{|}{\mathop{C}}\,H-\underset{|}{\mathop{C}}\,H-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}} \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{{H}_{3}}\,\,\,\,\,\,{{C}_{2}}{{H}_{5}} \\ \end{align}$

g. $\begin{align} & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{{C}_{2}}{{H}_{5}} \\ & C{{H}_{3}}-C{{H}_{2}}-\underset{|}{\mathop{\overset{|}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{3}} \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{{C}_{2}}{{H}_{5}} \\ \end{align}$

Ghi nhớ:

Viết đồng phân cấu tạo ta viết mạch chính trước, sau đó viết nhánh theo tên gọi.