Đáp án:
Giải thích các bước giải: ch3-ch3 +cl2 -> ch2cl-ch3 +hcl
ch3-ch2-ch2-ch3 +cl2 -> ch3- chcl-ch -ch3 +hcl
hoặc ch2cl- ch2-ch2-ch3
ch3-ch2-ch2-ch2 - ch3 + cl2 -> ch2cl- ch2-ch2-ch2-ch3 +hcl
-> ch3-chcl-ch2-ch2-ch3 +hcl
-> ch3 -ch2 -chcl-ch2-ch3 +hcl
ch3-ch(ch3) - ch2 -ch3 + cl2 -> ch2cl-ch(ch3) -ch2-ch3 +hcl
-> ch3-ccl(ch3) -ch2-ch3 +hcl
-> ch3-ch(ch3) -chcl-ch3+hcl
-> ch3-ch(ch) _ch2 - chcl +hcl