乙烯(练).docx

乙烯、烯烃综合练习例题精选】例1、CH的同分异构体可能有()510A4种B5种C8种D10种答案：D链异构解析：符合CH通式烃的同分异构体双键的位置异构n2n异类异构，环烷烃与单稀烃(1)CHCHCHCH=CH3222(2) CHCHCH=CHCH323(3) CH3-CH2-C=CH2CH3(4) CH3-CH=C-CH3ch3(5) CH3-CH-CH=CH22H2cHG/c2HHCCH3(7)HzCCHCHgHqCCH沁H2cCHCH2CH3(10)CHCH?H2C-CH-CH3例2、某烯烃与H加成后的产物是CH3-CH-CH-C(CH務，则该烯烃的结构2ch3ch3式可能有()A1种答案:CB2种C3种D4种ch3解析：需将题干中烯烃结构简式变形为ch3-ch-ch-c-ch3CH3CH3CH3说明烯烃的链已确定为只须在此