Answer:
Sulfuric acid.
Explanation:
A battery is a device which contains one or more electrical chemical cells which are connected in a electrical circuit to power the objects like flashlight, speaker, etc.
When a battery is supply electric power then its positive terminal classified as cathode and negative as anode.
And as we know that the electrolyte in a typical wet storage battery or cell contains 67% water and 33% of sulfuric acid.
