正在加载图片...
C.SF6 D.[SF3] 12.Which statement is incorrect about [S? A.It is an allotrope of sulfur B.It is paramagnetic C.It has a cyelic structure D.It adopts a chair conformation 13 Which statement about H2S is incorrect? A.It reacts with lead(II)acetate to give a yellow precipitate B.It is a gas at 298K C.It can be made by the hydrolysis of CaS D.It is highly toxic 14.In which reaction is sulfur oxidized? A.2IS20,P-+12→[S062+2I B.SO2+PCls-SOCl2+POCl3 C.2SCIFs +H2-S2F1o+2HCl D.Na2SO3 +2HCI-SO2 +2NaCl H2O 15.Which of the following has a linear structure? A.[NS2]" B.SO2 C.[S2- D.NSF 16.What symmetry does an SO;molecule possess? A.C3v B.D3h C.Czv D.D3 17.One method of manufacturing SO2 is by roasting iron sulfide: 4feS2+1102→2Fez03+8S02 Which of the following statements is correct about this reaction?C. SF6 D. [SF3] + 12. Which statement is incorrect about [S6] – ? A. It is an allotrope of sulfur B. It is paramagnetic C. It has a cyclic structure D. It adopts a chair conformation 13 Which statement about H2S is incorrect? A. It reacts with lead(II) acetate to give a yellow precipitate B. It is a gas at 298 K C. It can be made by the hydrolysis of CaS D. It is highly toxic 14. In which reaction is sulfur oxidized? A. 2[S2O3 ]2– + I2 →[S4O6] 2– + 2I– B. SO2 + PCl5 → SOCl2 + POCl3 C. 2SClF5 + H2 → S2F10 + 2HCl D. Na2SO3 + 2HCl → SO2 + 2NaCl + H2O 15. Which of the following has a linear structure? A. [NS2] + B. SO2 C. [S3] 2– D. NSF 16. What symmetry does an SO3 molecule possess? A. C3v B. D3h C. C2v D. D3 17. One method of manufacturing SO2 is by roasting iron sulfide: 4FeS2 + 11O2 → 2Fe2O3 + 8SO2 Which of the following statements is correct about this reaction? 8
<<向上翻页向下翻页>>
©2008-现在 cucdc.com 高等教育资讯网 版权所有