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Boojho, Paheli and their friend Golu were provided with a test tube each containing China rose solution which was pin in colour. Boojho added two drops of solution ‘A’ in his test tube and got dark pink colour. Paheli added 2 drops of solution ‘B’ to her test tube and got green colour. Golu added 2 drops of solution ‘C’ but could not get any change in colour. Suggest the possible cause for the variation in their results.
 
Solution A is because it can change the colour of China rose to dark . Solution B is a solution since it changes the color of the China rose to . Solution C is a solution since it didn't alter the colour of the china rose solution. Therefore, the solution A is an acid, B is a base, and C is neutral.