Take five test tubes and label them as A, B, C, D and E. Add 5 mL of five unknown solutions in them. Put a small strip of universal indicator in each of them. Following colours appear in these :
Solution A-Orange, Solution B-Green, Solution C-Red, Solution D-Blue, Solution E-Violet. Predict the nature of the solutions in these from the pH character.

Explanation

Solution-A (Weakly acidic), Solution-B (Neutral), Solution-C (Strongly acidic), Solution-D (Weakly basic), Solution-E (Strongly basic).