What do you understand about pH?

Two solutions X and Y have pH values of 2 and 9 respectively. Which one of these two will give a pink colour with phenolphthalein indicator?

Open in App

Solution

pH represents the strength of an acid or a base in terms of hydrogen ion concentration.

A solution is a base if pH > 7 and an acid if pH < 7.

Thus, solution X is an acid while Y is a base.

Phenolphthalein will turn pink when Y is added to it, as Y is a base.

Suggest Corrections

Similar questions

Q. Two solutions

A

and

B

have a

p H

of 3 and 9.5 respectively. Which of these will twin litmus solution from blue to red and which one will twin phenolphthalein from colorless to pink.

Q. Two solutions A and B have pH values of 3.0 and 9.5 respectively. Which of these will turn litmus solution from blue to red and which will turn phenolphthalein from colorless to pink?

Solution A gives pink color when a drop of phenolphthalein indicator is added to it. Solution B gives red color when a drop of methyl orange is added to it. What type of solutions are A and B and which of these will have a higher pH value?

Join BYJU'S Learning Program

What do you understand about pH?​ Two solutions X and Y have pH values of 2 and 9 respectively. Which one of these two will give a pink colour with phenolphthalein indicator?​

pH represents the strength of an acid or a base in terms of hydrogen ion concentration.​ A solution is a base if pH > 7 and an acid if pH < 7.​ Thus, solution X is an acid while Y is a base.​ Phenolphthalein will turn pink when Y is added to it, as Y is a base.​

What do you understand about pH?

Two solutions X and Y have pH values of 2 and 9 respectively. Which one of these two will give a pink colour with phenolphthalein indicator?

pH represents the strength of an acid or a base in terms of hydrogen ion concentration.

A solution is a base if pH > 7 and an acid if pH < 7.

Thus, solution X is an acid while Y is a base.

Phenolphthalein will turn pink when Y is added to it, as Y is a base.