question_answer

    A student prepared solutions of an acid and a base in two separate beakers. She forgot to label the solutions and litmus paper is not available in the laboratory. Since, both the solutions are colourless, how will she distinguish between the two?     

Answer:

   

S. No.	Indicator	Colour in acidic solution	Colour in neutral solution	Colour in basic solution
(i)	Litmus	Red	Purple	Blue
(ii)	Phenolphthalein	Colourless	Colourless	Pink
(iii)	Methylorange	Red/Pink	Orange	Yellow