Which of the following is the most effective way to prevent chemical contamination in a laboratory setting?

• A. Mix incompatible chemicals to neutralize them
• B. Ignore safety protocols when handling chemicals
• C. Leave chemical containers open for easy access
• D. Store chemicals in properly labeled, sealed containers

Answer: (D)

Verified step by step guidance

1. Understand that preventing chemical contamination in a laboratory primarily involves controlling exposure and avoiding unintended reactions.
2. Recognize that mixing incompatible chemicals can cause dangerous reactions and is not a safe method to neutralize chemicals.
3. Acknowledge that ignoring safety protocols increases the risk of contamination and accidents, so following protocols is essential.
4. Note that leaving chemical containers open exposes chemicals to air, moisture, and other contaminants, increasing the risk of contamination.
5. Conclude that the most effective way to prevent chemical contamination is to store chemicals in properly labeled, sealed containers to maintain their integrity and ensure safe handling.