thpt chuyên khoa học tn đề thi thử hóa quốc gia

... cấu tạo X, Y, Z là: A CH3CHO, HO-CH2-CH2-CHO, CH3COOH B C2H5CHO, HO-CH2-CH2-OH, HO-CH2-COOH C C2H4CHO, (HO)2CH-CH2CH3, HO-CH2-COOH D HCHO, HO-CH2CHO, HO-CH2-CH2-COOH Câu 37 : Hỗn hợp X gồm hai este ... (m – 3, 7) gam chất rắn Công thức cấu tạo hai este là: A HCOOCH=CH-CH3 CH3COOCH=CH2 B HCOOC(CH3)=CH2 HCOOCH=CH-CH3 C CH3COOCH=CH-CH3 CH3COOC(CH3)=CH2 D C2H5COO-CH=CH2 CH3COOCH=CH-CH3 Câu 38 : Khối ... Fe 3O4, Cu, Al, NaCl tan hoàn toàn lượng dư dung dịch sau đây? A dung dịch AgNO3 B dung dịch NH3 C dung dịch NaOH D dung dịch HCl Câu 18: Cho dãy hợp chất thơm: p-HO-CH2-C6H4-OH, p-HO-C6H4-COOC2H5,...

... l: A 11:1 B 15:2 C 15:1 D 11:2 Cõu 36: T etilen, cỏc cht vụ c cn thit, cỏc cht xỳc tỏc thớch hp v cỏc iu kin cú , s phn ng ti thiu cn thc hin iu ch etyl axetat l: A B C D Cõu 37: Thy phõn 6,84 ... l: A CuSO4.5H2O, Ca(OH)2 C Ca(OH)2, H2SO4 c B CuSO4 khan, Ca(OH)2 D CaO, H2SO4 c Trang 2/4 - Mó thi 132 Cõu 27: Thc hin cỏc thớ nghim sau: Sc khớ Cl2 vo dung dch KI Sc khớ H2S vo dung dch nc clo ... úng rn gi l cht nhit rn Amilopectin v nha rezit l cỏc polime cú mch nhỏnh Poliisopren l cao su thi n nhiờn Cỏc polime nha rezol, PVC, cloropren, polimetylmetacrylat u l cỏc cht Hu ht cỏc polime...

... the blanks from 31- 40 The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition In view of the general increase in this 31 _ , it is not ... annual revenues, and this figure is likely to continue rising throughout the 19 90s As Carolyn Doppelt Gray, an official of the Small Business Administration, has noted, "The 19 70s was the decade ... of women entering management, and the 19 80s turned out to be the decade of the woman entrepreneur" What are some of the factors behind this trend? For one thing, as more women earn advanced degrees...

... 11 A 485 11 C 13 2 12 D 209 12 B 35 7 12 D 485 12 D 13 2 13 C 209 13 A 35 7 13 B 485 13 D 13 2 14 C 209 14 B 35 7 14 A 485 14 A 13 2 15 A 209 15 D 35 7 15 C 485 15 A 13 2 16 B 209 16 B 35 7 16 B 485 16 ... 209 33 D 35 7 33 A 485 33 A Trang 7/8 - Mã đề thi 13 2 13 2 34 A 209 34 A 35 7 34 B 485 34 B 13 2 35 A 209 35 B 35 7 35 A 485 35 C 13 2 36 A 209 36 B 35 7 36 C 485 36 B 13 2 37 A 209 37 A 35 7 37 B 485 37 ... 27 B 13 2 28 D 209 28 C 35 7 28 A 485 28 A 13 2 29 D 209 29 A 35 7 29 D 485 29 A 13 2 30 B 209 30 C 35 7 30 C 485 30 B 13 2 31 C 209 31 A 35 7 31 B 485 31 A 13 2 32 D 209 32 C 35 7 32 D 485 32 B 13 2 33 C...