
海水提溴知识测试

Quiz
•
English
•
7th Grade
•
Easy

Gary Hess
Used 1+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
世界上99%的溴都蕴藏于哪里?
海水和盐湖
大气和云层
河流和湖泊
土壤和岩石
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
将氯气通入提取食盐后的母液的目的是什么?
降低食盐的溶解度
增加母液的酸性
去除水分以提高浓度
提高食盐的纯度和促进结晶
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用硫酸酸化的目的是什么?
降低反应温度
提高反应效率和纯度
增加反应时间
减少反应物的浓度
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
通入热空气和水蒸气,溴吹入吸收塔是利用了溴的什么性质?
溴的颜色变化性
溴的溶解性
溴的挥发性
溴的吸湿性和氧化性
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
为什么不直接用含溴的海水进行蒸馏得到液溴?
海水中含有丰富的营养成分,可以直接使用。
因为海水中杂质多,蒸馏效率低,且可能产生有害物质。
蒸馏海水可以快速得到液溴,效率高。
海水中的溴含量非常高,蒸馏后不会有杂质。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
写出SO2吸收过程中发生反应的化学方程式。
SO2 + O2 → SO3
SO2 + CO2 → C2O4
SO2 + H2 → H2S
SO2 + H2O → H2SO3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
能否用萃取的方法将溴萃取到四氯化碳溶液中再蒸馏提取溴?
可以
只能用醇提取
只能用水提取
不可以
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