ПАМАГИ Пара изомеров:

1) CH4 CH3 – CH3

2) CH3 – CH3 CH3 – CH2 – CH2 – CH3

3) CH3 – CH – CH3 CH3 – CH2 – CH2 – CH3

CH3

4) CH3 – CH – CH3 CH3 – CH2

CH3 CH3

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