CH3-CH2-CH3 + I2 = CH3-CH2-CH2-I + HI
CH3-CH=CH2 + Cl2 = CH3-CH2(CL)-CH2-Cl
CH3-CH=CH-CH3 + H2 = CH3-CH2-CH2-CH3
CH3-CH2-CH3 + I2 = CH3-CH2-CH2-I + HI
CH3-CH=CH2 + Cl2 = CH3-CH2(CL)-CH2-Cl
CH3-CH=CH-CH3 + H2 = CH3-CH2-CH2-CH3