The liquid is considered a visual sign of a potential chemical hazard.
Explanation:
A chemical hazard is defined as non-biological material which can cause harm to life or health.
Exposure to these substances can lead to adverse health effects.
These substances can come into contact via inhalation, skin absorptions, ingestion, etc.
The liquid substance which is of corrosive nature has a sign with 2 horizontal test tubes and one hand.
So, from this, we can say that liquid is considered a visual sign of a potential chemical hazard.