已知苯跟一卤代烷在催化剂作用下可生成苯的同系物。如:在催化剂

已知苯跟一卤代烷在催化剂作用下可生成苯的同系物。如:在催化剂作用下,由苯和下列各组物质合成乙苯最好应选用的是(    

ACH3—CH3Cl2         BCH2CH2Cl2    

 CCH2CH2HCl        DCH≡CHCl2

答案

C

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