1)CH2=CH-CH2-CH3+Br2->
2)CH2=CH-CH2-CH3+HBr->
3)CH2=CH-CH2-CH3+[O]+H2O->
4)CH2=CH-CH2-CH3+H2O->
5)CH2=CH-CH2-CH3+H2->

СH2=CH-CH2-CH3 + Br2 -> CH2(Br) - CH(Br)-CH2-CH3

CH2=CH-CH2-CH3 + HBr -> CH3-CH(Br)-CH2-CH3

CH2=CH-CH2-CH3 + [O] + H2O -> CH2(OH)-CH(OH)-CH2-CH3 (KMnO4)

CH2=CH-CH2-CH3 + H2O -> CH3-CH(OH)-CH2-CH3

CH2=CH-CH2-CH3 + H2 -> CH3-CH2-CH2-CH3