- Sulfuric acid is a strong acid and completely dissociates in water, releasing H+ ions, making the solution highly acidic. Litmus paper dipped in a sulfuric acid solution will turn red.

- Ethanoic acid is a weak acid and only partially dissociates in water, releasing fewer H+ ions. The solution is less acidic compared to sulfuric acid. Litmus paper dipped in an ethanoic acid solution may turn slightly pink, indicating a weak acidic nature.

This simple test allows for the differentiation between sulfuric acid and ethanoic acid based on their acidity levels.