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最佳答案:CH3CH2OH--(170摄氏度,浓H2SO4)----CH2==CH2+H2O2CH3CH2OH--(140摄氏度,浓H2SO4)----CH3CH2OCH
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最佳答案:C2H5OH + 4H2SO4(浓) = C + CO2 + 4SO2 + 7H2O一般是生成乙烯 C2H5OH =加热H2SO4(浓)= C2H4 + H2O
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最佳答案:CH3COOH+CH3CH2OH=(浓硫酸)(可逆)CH3COOCH2CH3+H2O 产物乙酸乙酯和水浓硫酸在条件上做吸水剂和催化剂
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最佳答案:CH3CH2OH+NaBr+H2SO4(浓)=(加热)=CH3CH2Br+H2O+NaHSO4
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最佳答案:2C2H5OH+2NaBr+H2SO4====2C2H5Br+Na2SO4+H2OCH2=CH2 Br2 SO2C2H5OH=====(浓H2SO4,加热)CH