Sunita puts the following indicators in solutions A, B, C and makes the following observations:

The chemical nature of A, B, C respectively are :

Correct option is D

The correct answer is acidic, basic, acidic.
Acid-Base Indicators: The chemicals that are used to determine whether a given sample of element or compound is acidic, basic or neutral are called Acid-Base indicators.
• Solution A: Turmeric shows no change and Phenolphthalein is colourless, indicating an acidic solution.
• Solution B: Turmeric turns reddish-brown and Phenolphthalein turns pink, indicating a basic solution.
• Solution C: Turmeric turns yellow and Phenolphthalein is colourless, indicating an acidic solution.