下列制取乙苯的四种方法中,能够实现零排放、原子利用率最高的是( )
(A)C6H6+C2H5Cl → C6H5-C2H5+HCl
(B)C6H6+CH3CH2OH → C6H5-C2H5+H2O
(C)C6H6+CH2=CH2 → C6H5-C2H5
(D)C6H5-CH2-CH2-Br → C6H5-CH2=CH2+HBr C6H6+CH2=CH2+H2 → C6H5-C2H5
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(A)C6H6+C2H5Cl → C6H5-C2H5+HCl
(B)C6H6+CH3CH2OH → C6H5-C2H5+H2O
(C)C6H6+CH2=CH2 → C6H5-C2H5
(D)C6H5-CH2-CH2-Br → C6H5-CH2=CH2+HBr C6H6+CH2=CH2+H2 → C6H5-C2H5