Explanation:

- Battery: This is the correct option. Household batteries, especially automotive ones, often contain sulphuric acid. It's a key component in lead-acid batteries.

- Toothpaste: Usually contains fluoride, abrasives, and detergents, but not sulphuric acid. It's used for cleaning and protecting teeth.

- Vinegar: Contains acetic acid, giving it a sour taste. Used in cooking and cleaning, but no sulphuric acid.

- Butter: A dairy product made from milk or cream. It contains fats but no sulphuric acid.