Ответ:

1)CH3-CH2-CH2-CH3+Cl2=CH3-CHCl-CH2-CH3+HCl

2)CH3-CHCl-CH2-CH3+Cl2=CH3-CCl2-CH2-CH3+HCl

3)CH3-CCl2-CH2-CH3+Cl2=CH3-CCl2-CHCl-CH3+HCl

4)CH3-CCl2-CHCl-CH3+Cl2=CH3-CCl2-CCl2-CH3+HCl

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