... Cu Phn dung dch sau phn ng chc chn cú cha A Zn(NO3)2; Fe(NO3)2 B Zn(NO3)2; Fe(NO3)2; Cu(NO3)2 C Zn(NO3)2; Fe(NO3 )3 D Zn(NO3)2; Fe(NO3 )3; Cu(NO3)2 Cõu 46: Cho 0,1 mol hn hp X gm hai anehit no, ... Fe(OH) 2,Fe(NO3 )3, FeS, Fe2O3, Fe(OH )3, FeSO4, FeCO3, Fe3O4, Fe(NO3)2 ln lt tỏc dng vi dung dch HNO3 c, núng S phn ng thuc loi phn ng oxi hoỏ - kh l A B C D 3 Cõu 13: Khớ CO2 chim t l 0, 03 % th tớch ... cht phn ng A B C D Cõu 31 : Cho s : C6H12O6 X CH3COOH Xỏc nh cht X A C2H5OH B CH3CHO C CH3CH2CH2CH3 D CH3COONa Cõu 32 : Cho cỏc cht sau: metan (1); etylen(2); axetilen (3) ; benzen (4); stiren...