Question

31. When working with chemicals, the BEST practice to avoid Cross-Contamination is:

Answer 1

Answer: Avoid spilling of chemicals

Explanation:

The chemicals should be kept in air tight containers in order so that they cannot get spill over each other.

Cross contamination takes place when a different type of substance comes in contact with the different kind of substance.

The chemicals should be kept in a way that it does not comes in contact with the different one and get spoiled.

Answer 2

All but I think the best is B not sure