Этилен>пропилен> изобутен 1) CH2=CH2+Br2 = CH2Br-CH2Br . CH3-CH=CH2+Br2 = CH3-CHBr-CH2Br (CH3)2CH=CH2+Br2 = (CH3)2CHBr-CH2Br 2) CH2=CH2 +HX = CH2X-CH3 CH3-CH=CH2+HX = CH3-CHX-CH3 (CH3)2CH=CH2+HX = (CH3)2CHX-CH3 3) CH2=CH2+H2O=CH3-CH2OH CH3-CH=CH2+H2O=CH3-CHOH-CH3 (CH3)2CH=CH2 +H2O = (CH3)2CHOH-CH3
Этилен пропилен изобутен СН2 = СН2 +Br2 = CH2Br - CH2Br CH2 = CH2 + HBr = CH3-CH2Br CH2=CH2 + H2O = CH3-CH2OH CH2= CH- CH3 + H2 = CH3- CH2- CH3 CH2 = CH - CH3 + HBr = CH3-CH2-CH3 CH2=CH-CH3 + H2O = CH3-CHOH-CH3 Ну а с изобутеном напишешь сама