а) CH3 - C(CH3)(CH3) - CH =CH2
б) CH2 = CH - C(CH2-CH3)(CH2-CH3)- CH2 - C H(CH2-CH3)- C H2- CH3
в) CH2 = C(CH3) - C(Br)(Br) - CH2 - CH2 - CH3
а) CH3 - C(CH3)(CH3) - CH =CH2
б) CH2 = CH - C(CH2-CH3)(CH2-CH3)- CH2 - C H(CH2-CH3)- C H2- CH3
в) CH2 = C(CH3) - C(Br)(Br) - CH2 - CH2 - CH3