Which of the following is the best practice for storing chemicals in a laboratory?

• A. Store all chemicals together on open shelves for easy access.
• B. Store chemicals based on their color to simplify organization.
• C. Store chemicals in direct sunlight to prevent moisture buildup.
• D. Store chemicals according to their compatibility groups and label all containers clearly.

Answer: (D)

Verified step by step guidance

1. Understand that proper chemical storage is crucial for safety and preventing dangerous reactions in the laboratory.
2. Recognize that storing chemicals based on their compatibility groups means grouping chemicals that do not react dangerously with each other together, such as acids separate from bases, and flammables separate from oxidizers.
3. Know that labeling all containers clearly helps in quick identification and reduces the risk of accidental misuse or mixing of incompatible chemicals.
4. Avoid storing chemicals on open shelves without segregation, as this can lead to accidental mixing and spills.
5. Avoid storing chemicals based on color or in direct sunlight, as these practices do not ensure safety and can lead to degradation or hazardous situations.