A) II +2
31. (99-8-47) Berilgan l-lll moddalarning qaysi biri bilan reagentlarning (1-5) qaysinisi reaksiyada qatnasha oladi?
CH = CH2
m{
1) bromli suv; 2) vodorod bromid; 3) mis (I) tuzlari; 4) mis (II) tuzlari; 5) kaliy permanganat.
A) II +2 B) III +3
РЎ) I +1
D) III +4
E) II +5