(五)在下列各组化合物中,哪一个比较稳定?为什么?-|||-H H H CH(CH3)2-|||-(1) C=C C=C-|||-H3C CH(CH3)2 H3C H-|||-CH3 CH3-|||-(2)-|||-(3)-|||-(4)-|||-(5)-|||-(6) -C(H)_(3) , =C(H)_(2)

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