... cht X, Y, Z ln lt l : A CH2=CH-O-CH3, CH3COCH3, CH3CH2CHO B CH3CH2CH2OH, CH2=CH-O-CH3, CH3CH2CHO C CH2=CHCH2OH, CH3CH2CHO, CH3 COCH3 D CH3CH2CH2OH, CH3COCH3, CH3CH2CHO Cõu 44 Kim loi khụng b n ... cht C2H2, C2H4, C2H5COOCH3, CH3CHO, CH3COOH, CH3COOC2H5, C2H5ONa, C6H12O6 (glucoz), C2H5Cl, s cht phự hp vi X l A B C D Cõu 28 Cht X l mt andehit mch h cha a nhúm chc andehit v b liờn kt pi gc ... anken cn dựng va 0,7 mol O2, thu c 0,4 mol CO2 Cụng thc ca ankan l : A CH4 B C2H6 C C3H8 D C4H10 Cõu 23 Ch phn ng sai : t A CH3CH2Cl + NaOH loóng CH3CH2OH + NaCl t B CH3CH2Br + KOH CH2 = CH2 +...