第四章单元测试
- Which of the following is property of alum(明矾)? （ ）
- Alum(明矾) can be used as…（ ）。
- Which of the followings are types of chemical reactions involved in the synthesis of alum(明矾)（ ）。
- The reaction between Al foil and NaOH is a typical redox reaction(氧化还原反应). （ ）
- In general, the solubility of double salts is higher than that of the simple salts of its constituents? （ ）
A:It can react with NaOH solution to generate H2 B:It is soluble in water and ethanol(乙醇) C:It is flammable and explosive D:It is blue and odorless
答案:It can react with NaOH solution to generate H2
A:a coagulant in water treatment B:a mordant in dyeing C:a fire retardant in textiles(纺织物) D:a preservative(防腐剂) in food
A:Acid-base B:Decomposition C:Oxidation-reduction D:Precipitation
A:对 B:错
A:对 B:错
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