If you paid attention in chemistry class, you'd know not to mess around with sulfuric acid. Even at a fairly dilute concentration, it's about ten times more acidic than the contents of your stomach.

A solution of hydrochloric acid, with a concentration of 2 g/dm 3, has a pH of 1.3. Predict its pH when it is diluted to make a solution with a concentration of 0.02 g/dm 3.

Learn about acids, alkalis and how the pH scale is used to measure the acidity or alkalinity of a solution. BBC Bitesize Scotland Science Third Level CfE ...