Rima wrote a secret message in a paper using a solution X. Neha was able to read it, as the letters turned pink when rubbed with a solution Y. Identify X and Y.

Open in App

Solution

Option (d) is correct: X: Soap solution
Y: Phenolphthalein

Suggest Corrections

Similar questions

Q. A student was asked to test an unknown colourless solution with an indicator. When he added a few drops of phenophthalein indicator, the solution turned pink. Which one of the following chemicals should be added in excess so as to obtain the colourless solution again?
(1) HCI solution
(2) NaOH solution
(3) NH₃ solution
(4) NaCI solution

Q. Rima wrote a secret message in a paper using a solution X. Neha was able to read it as the letters turned green when rubbed with a solution Y. Identify X and Y.

Q. a drop of phenolphthalein was added to aqueous solution of a salt X of sodium metal. The solution turned pink when dilute HCl acid was added to it and produced effervescence due to the evolution of gasY. the gas Y turned lime water milky.
1) identify salt X
2) identify Y
3) identify the base and acid which on reaction would produce the salt X
4) why does salt X give pink colour with phenolphtalein solution?

Q. Two salts

A

and

B

are dissolved in water separately. When phenolphthalein is added to the two solutions one solution turned pink and the other solution was colourless. Identify

A

and

B

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 ?

Join BYJU'S Learning Program

Rima wrote a secret message in a paper using a solution X. Neha was able to read it, as the letters turned pink when rubbed with a solution Y. Identify X and Y.

Option (d) is correct: X: Soap solution Y: Phenolphthalein

Option (d) is correct: X: Soap solution
Y: Phenolphthalein