大学MOOC Analytical Chemistry Experiment(Dalian University of Technology)1458266169 最新慕课完整章节测试答案
Charper1 Course Introduction
Laboratory Safety Test
1、单选题:
Which of the following operations exists insecurity?
选项:
A: Experiments using volatile reagents and toxic gases should be conducted in a fume hood.
B: When opening a volatile reagent bottle, do not face the face or other people, it should be carried out in a fume hood.
C: When diluting concentrated sulfuric acid, the water should be slowly poured into concentrated sulfuric acid and continuously stirred.
D: When diluting concentrated sulfuric acid, the concentrated sulfuric acid should be poured slowly into the water and continuously stirred.
答案: 【 When diluting concentrated sulfuric acid, the water should be slowly poured into concentrated sulfuric acid and continuously stirred.】点我阅读全文
