Final answer:
Sulphuric acid is best classified as a corrosive, due to its ability to chemically react and damage other substances, tissues, and materials.
Step-by-step explanation:
Sulphuric acid is an example of corrosives. This is because it is a substance that can damage or destroy other substances with which it comes into contact through a chemical reaction. Sulphuric acid is a highly corrosive strong mineral acid with many applications including domestic acidic drain cleaners, electrolytes in lead-acid batteries, and cleaning agents.
Other properties of sulphuric acid, such as being a strong oxidizing agent when hot and concentrated, further illustrate its reactive nature but not necessarily its flammability. Materials classified as oxidizing agents can cause other materials to combust, which is different from being inherently flammable or combustible themselves.