Store concentrated acids and bases separately in enclosures made of corrosion-resistant materials.

• A. Sometimes
• B. Depends on chemical
• C. True
• D. False

Answer: (C)

Concentrated acids and bases are highly corrosive and can damage many common storage materials, cause leaks, and generate dangerous fumes if spills occur. Storing them in enclosures made of corrosion-resistant materials protects the containment from chemical attack and reduces the risk of leaks compromising the storage area. Keeping acids and bases separate prevents any accidental mixing that could lead to exothermic reactions or spread of contamination, which is a standard safety practice in labs. Because of these reasons, the approach is true and reflects best practice. The other options imply conditional or situational use, which doesn’t align with the consistent safety standard.