高一化学竞赛初赛练习题

www.31doc.com/ [1] ( 12 3 36 ) 1. N0 0.2 mol/L ( ) A.1 L 0.2 NA B.1 L 0.6 NA C.3 L 1.2 mol/L D.2 L 0.6 NA 2. ( ) A.FeCl3 B.AlCl3 C.SiCl4 D.PCl5 3. ( ) A.Fe3+Na+Cl-I- B.Cu2+K+NO3-S2C.AlO2-K+NO3-OH- D.Ba2+H+Cl-SO424.( ) A.1 12 g B. 12 g C. 12 g D.1 mol 12C 12 g 5. ( ) 15 A.: H++OH-=H2O B.: Ag++2 NH3H2O=[Ag(NH3)2]++2 H2O C.: H++HCO3-=CO2+H2O D.: 2 MnO4-+5 S2-+16 H+=2 Mn2++5 S+8 H2O 6. ( ) A.I3+ B.I3- C.CS2 D.BeCl2 7. : : ( ) A. abc a:b:c=1:2:3 B. abc a:b:c=1:2:1 C. a c a:c=1:2 D. b c b:c=2:1 8. ( ) A.Al(OH)3 B.Cu(OH)2 C.Zn(OH)2 D.Ag2O 9. SO2 ( ) A. B. FeS2 C. D. 25 10.( ) A.Fe(H2O)62+ B.Fe(CN)64C.Co(H2O)62+ D.Co(NH3)62+ 11. M M ( ) A.1mol M 2 mol H2 B.1 mol M H2SO4 2 mol CH3COOH C.M NaOH D.1 mol M 1 mol HBr() 12.: ( ) A. a c B. b C. D. ( 9 18 2 36 ) 13. :P+CuSO4+H2O Cu3P+ H3PO4+H2SO4 14. 35 15. 16. : CH3COONa CH3COONH4 CH3COOH NH3H2O NH4Cl (1) pH (): (2)(): 17. 1874 Griess [C6H3(NH2)2CO2H] [C6H4(NH2)2] (1) (2) (3) 18. (1): (2): 19. 45 :H+F-OH-Cu2+C2O42-BF3H2OSO3 (1); (2): 20. C3N4 21. (1) A (2) A B A X X Br2 Y Y :Y: Y B ( 7 60 ) 22.(6 ) 55

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