题目内容

用丙醛(CH3-CH2-CHO)为原料通过三步反应得到聚丙烯,写出反应过程中发生的反应方程式:
(1)                                                                      
(2)                                                                      
(3)                                                                      
(1)CH3—CH2—CHO+H2CH3—CH2—CH2OH
(2)CH3—CH2—CH2OH  CH3CH==CH2+H2O
(3)
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