Odpowiedzi

2010-03-24T18:09:20+01:00
A) CH₃-CH₂-CH-CH₃
...............I
..............CH₃
b).......O
..........II
.....CH₃-C-CH₂-CH₂-CH₃

c) CH₃-CH-CH₂-CH₂-CH₃
..........I
.........CH₃
3 2 3