Question

.A student tested the pH of distilled water and found that the colour of the pHpaperchanged to green. He checked the pH again after dissolving a pinch of common salt in it. The colour of the pHpaperthis time would be : (a) Green (b) Yellow (c) Red (d) Blue

Answer 1

Distilled water is neutral, so the color of pH paper changed to green. Even common salt is neutral, so the correct option is a) green