问题
推断题
已知A是气态烃，完全燃烧时产生的CO2和H2O的物质的量之比为1∶1，A的相对分子量小于30，在下图变化中，中间产物C跟葡萄糖一样也能跟新制的Cu(OH)2发生反应产生砖红色沉淀，D的水溶液显酸性，E有香味，（反应条件未写出）。
写出下列各步变化的化学方程式并注明反应类型
（1）反应①_________________________；___________。
（2）反应②_________________________；___________。
（3）反应④_________________________；___________。
（4）反应⑤_________________________；___________。
答案
（1）CH2=CH2+H2O
CH3CH2OH；加成反应
（2）2CH3CH2OH+O2
2CH3CHO+2H2O；氧化反应
（3）CH3COOH+C2H5OH
CH3COOC2H5+H2O；酯化反应（或取代反应）
（4）nCH2=CH2
；加聚反应
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