4. Exercises IV

Distilled water is considered a basicneutral acidic substance with a pH level of 7. To verify its neutrality, you can use litmus paper, which usually comes in either blue or redpink or redblue or pink. Dipping a strip of litmus paper into distilled water will remain the same colour, indicating that the water is neither acidic nor basic. Hence, distilled water is neutral and does not affect the colour of watmanlitmusbalman paper.