Regarding storage of chemicals, which of the following are correct?

i. Chemicals should be stored in appropriate and lockable cabinets

ii. Secondary containers should be used to contain potential spills

iii. Chemical containers should be stored above eye levels and on the top shelf of a storage unit

iv. Flammables should be stored in household refrigerators

Question

Regarding storage of chemicals, which of the following are correct?

i.   Chemicals should be stored in appropriate and lockable cabinets

ii.  Secondary containers should be used to contain potential spills

iii. Chemical containers should be stored above eye levels and on the top shelf of a storage unit

iv. Flammables should be stored in household refrigerators

BlackTom AI · Accepted Answer

Question restatement: Regarding storage of chemicals, which of the following are correct?

i.  Chemicals should be stored in appropriate and lockable cabinets
ii. Secondary containers should be used to contain potential spills
iii. Chemical containers should be stored above eye levels and on the top shelf of a storage unit
iv. Flammables should be stored in household refrigerators

Option-by-option analysis:

Option A: i, ii and iii only
- Why this would be considered: It asserts that statements i, ii, and iii are correct.
- Why it’s incorrect: Statement iii claims chemicals should be stored above eye levels on the top shelf. In many safety guidelines, chemicals should be stored in a secure, accessible, and appropriately rated cabinet (often lockable) and at heights that minimize risk of tipping or difficult access; storing above eye level is not a general safety rule and can create spill and exposure hazards. Therefore iii is not correct, which invalidates this option.

Option B: i and ii only
- Why this is considered: It says only i and ii are correct, matching the standard safety practice of using lockable cabinets for chemical storage and using secondary containment to manage spills.
- Why it’s correct: Statement i is consistent with storing chemicals in appropriate, lockable cabinets to prevent unauthorized access and accidental contact. Statement ii reflects the use of secondary containers or containment to control spills and leaks, which is a common safety practice.

Option C: All are correct
- Why this is incorrect: This would require iii and iv to be correct as well. As noted, iii (storing above eye levels/top shelf) is not aligned with typical safety guidance, and iv (storing flammables in household refrigerators) is unsafe and inappropriate; household fridges are not rated for flammable liquid storage and pose serious fire and safety risks. Hence this option is false.

Option D: iii and iv only
- Why this is incorrect: This option claims only iii and iv are correct. Both iii and iv are at odds with standard chemical safety practices for the reasons above, making this option false.

In summary, the statements that align with common chemical safety standards are i and ii, while iii and iv conflict with established guidelines. The provided answer key designates i and ii only as the correct combination, which matches the reasoning that iii and iv are incorrect.

类似问题

How should chemicals be stored?

化学品应如何储存？

关于化学品的储存，下列哪项是正确的？ i. 化学品应存放在合适且可上锁的柜子中 ii. 应使用辅助容器来容纳潜在的泄漏 iii. 化学品容器应存放在高于视线的高度，并放在储藏室的顶层架子上 iv. 易燃物品应存放在家用冰箱中

The implementation and loading phase of the Database Life Cycle (DBLC) involves _____.

Which of the following parameters is used to determine the concentration of protein in a spectrophotometer?

What are the units of absorbance?

What is the concentration of protein in the stock solution of BSA used for the standard curve?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单