1)CH3-CH-CH-CH-CH-CH2-CH2-CH3
Под 2 CH3,под 3 c2h5,под 4 ch3 і 5 ch3
2)ch2-ch-ch-ch2-ch3
Br ch3 Br c2h5
1)CH3-CH-CH-CH-CH-CH2-CH2-CH3
Под 2 CH3,под 3 c2h5,под 4 ch3 і 5 ch3
2)ch2-ch-ch-ch2-ch3
Br ch3 Br c2h5