Question

A Magician has three glasses A , B , C , all cointaining colourless liquid . On transferring the contents of A to B the Solution turns pink . This pink solution when added to C turns colourless again . Identify A , B , C ?

Answer 1

Base on reacting with phenolpthalien gives pink colour and this pink color solution on reacting with acid get neutralized and hence pink colour disappears so,

A= phenolpthalien

B= base(like NaOH)

C=acid(like HCl)