Final answer:
Mixing different chemicals in a single container is not acceptable and can be dangerous.
Step-by-step explanation:
The incorrect statement with respect to chemical storage on a job site is B) Mixing different chemicals in a single container is acceptable to save space. It is important to never mix different chemicals in the same container as they can react with each other and cause dangerous reactions or release harmful fumes. Each chemical should be stored in its original container whenever possible to ensure proper identification and prevent accidents.