18. (98-1-40) Reaksiyalarning qaysilari orin olish turiga mansub?
1) Zn + CuCI2 -> ZnCI2 + Cu;
2) C6H5OH + NaOH -> C6H5ONa + H20;
3) H-C(0)-H + Ag20 HC(0)-OH + Ag;
4) C2H6 + Cl2 — C2H5CI + HCI;
5) C2H5OH + Na -> C2H50na + H2.
A) 1,2, 4 B)1,3, 5
C) 1, 3, 4
D) 1, 4, 5
E) 1, 2, 5