Question

Помогите с 4 пожалуйста!!!

Answer 1

C2H5OH -> C2H4 + H2O; C2H4 + H2 -> C2H6; C2H4 + HBr -> C2H5Br; C2H6 -> C2H4 + H2; C2H6 + Cl2 -> C2H5Cl + HCl;