CH3 CH3 (2) CH CHCHCICH,KOH CHC-CHCH HCI CH.CCICH CH 9.A CH:CHCH=CH2 B CH CH-CHCH2Br C CH2=CH-CH=CH2 Br Br 10.A.CH:CH=CHCH; B.CH:CHBrCHBrCH:C.CH:C=CCH: D.CH2-CHCH-CH2 E.CH;COOH 2