... III, V B II, V C I, IV, V D III, V Cõu42 t chỏy m t ete X n ch c ta thu c a mol CO2 v b mol H2O Bi t b/a = 4/3 V y ete X l ete c t o t : A R u etylic B R u metylic v r u etylic C R u metylic v ... th xỏc nh c 49 Cho cỏc ch t sau: CH2 CH3 I II III IV Ch t no l ng ng c a nhau? V CH3 A I,III,IV B I, II, V C III, IV, V D II, III, V 50 T n-hexan cú th i u ch c ch t no sau õy: A iso-hexan ... v m, (H2O) A : 17,92 lit v 14,4 g B : 8,96 lớt v 11, 7g C : 4,48 lit v 7,2 g D : 8,96 lit v 7,2g Cõu 16 : Cho h n h p metanal v hidro i qua ng ng Ni nung núng D n ton b h n h p sau ph n ng vo...