第十六章单元测试
- What is the name of the structural unit of potassium cobalt heteropolytungstate(杂多酸)? （ ）
- What is the purpose of adding potassium persulfate(K2S2O8) to the K6 solution? （ ）
- Which of the followings are factors that affect the stability of heteropolyacids(杂多酸)（ ）。
- K5CoW12O40 has the potential to oxidize some reductive reagents. （ ）
- K5CoW12O40 is used as a catalyst in organic synthesis. （ ）
A:Keggin anion B:Lindqvist anion C:Anderson anion D:Dawson anion
答案:Keggin anion
A:To oxidize cobalt ions B:To dissolve cobalt ions C:To precipitate cobalt ions D:To reduce cobalt ions
A:The pH of the solution B:The temperature of the system C:The stirring rate
A:对 B:错
A:对 B:错
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