如:乙烯水化法:CH2=CH2 + H2O CH3CH2OH 查看更多

 

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制取乙醇的下列反應(yīng),原子經(jīng)濟(jì)性最差的是( 。

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下列反應(yīng)制取乙醇,原子經(jīng)濟(jì)性最差的是(    )

A.乙烯水化法:CH2=CH2+H2OCH3CH2OH

B.乙醛還原法:CH3CHO+H2CH3CH2OH

C.鹵代烴水解法:CH3CH2Br+H2OCH3CH2OH+HBr

D.酯類水解法:CH3COOC2H5+H2OCH3COOH+C2H5OH

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下列反應(yīng)制取乙醇,原子經(jīng)濟(jì)性最差的是(    )

A.乙烯水化法:CH2=CH2+H2OCH3CH2OH

B.乙醛還原法:CH3CHO+H2CH3CH2OH

C.鹵代烴水解法:CH3CH2Br+H2OCH3CH2OH+HBr

D.酯類水解法:CH3COOC2H5+H2OCH3COOH+C2H5OH

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制取乙醇的下列反應(yīng),原子經(jīng)濟(jì)性最差的是( 。
A.乙烯水化法:CH2=CH2+H2O
催化劑
CH3CH2CH
B.乙醛還原法:CH3CHO+H2
催化劑
CH3CH2OH
C.鹵代烴水解法:CH3CH2Br+H2O→CH3CH2OH+HBr
D.酯類水解法:CH3COOC2H5十H2O
稀硫酸
CH3COOH+C2H5OH

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制取乙醇的下列反應(yīng),原子經(jīng)濟(jì)性最差的是( )
A.乙烯水化法:CH2=CH2+H2OCH3CH2CH
B.乙醛還原法:CH3CHO+H2CH3CH2OH
C.鹵代烴水解法:CH3CH2Br+H2O→CH3CH2OH+HBr
D.酯類水解法:CH3COOC2H5十H2OCH3COOH+C2H5OH

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