下列反应中,属于取代反应的是
①CH3CH===CH2+Br2 CH3CHBrCH2Br
②CH3CH2OH CH2===CH2↑+H2O
③CH3COOH+CH3CH2OH CH3COOCH2CH3+H2O
④C6H6+HNO3C6H5NO2+H2O
A.①② | B.③④ | C.①③ | D.②④ |
下列反应中,属于取代反应的是
①CH3CH===CH2+Br2 CH3CHBrCH2Br
②CH3CH2OH CH2===CH2↑+H2O
③CH3COOH+CH3CH2OH CH3COOCH2CH3+H2O
④C6H6+HNO3C6H5NO2+H2O
A.①② | B.③④ | C.①③ | D.②④ |