Table of Contents
- 1 What happens when a few drops of phenolphthalein are added to an basic solution?
- 2 When 2 to 3 drops of phenolphthalein is added to a test solution turns pink .the solution?
- 3 What is the reaction of acid with Phenolphthalein?
- 4 When a few drops of phenolphthalein are added to a solution having pH 10.5 then the colour?
- 5 What happens when we add phenolphthalein solution to acid or base?
- 6 What happens when sodium hydroxide is added to hydrochloric acid?
What happens when a few drops of phenolphthalein are added to an basic solution?
Phenolphthalein remains colourless in neutral or acidic solution but turns out magenta or pink in basic solutions.
What color is phenolphthalein when the solution is acidic?
Pink
Other indicators
| Indicator | Acidic | Alkaline |
|---|---|---|
| Methyl orange | Red | Yellow |
| Phenolphthalein | Colourless | Pink |
What happens when phenolphthalein is added to acidic solution basic solution and neutral solution?
Answer: It turns colorless in acidic solutions and red in basic solutions.
When 2 to 3 drops of phenolphthalein is added to a test solution turns pink .the solution?
The pH-range of Phenolphthalein is 8.3 to 10.0. This means that at pH=8.3, any Alkaline solution will give a pink colour.
When a few drops of phenolphthalein is added to a solution having pH 10.5 then the colour?
Phenolphthalein turns pink(magenta) when it reacts with a solution having pH above 8.5.
Why is Phenolphthalein colorless in acidic solutions?
Phenolphthalein (HIn) is weakly acidic in nature. And in aqueous solution, it dissociates into and ions. The pink colour of the solution is due to the concentration of ions in the solution. Under acidic conditions, the concentration of in the solution is very low and concentration of is high, hence it is colourless.
What is the reaction of acid with Phenolphthalein?
Reaction of acid with phenopthalien turns colourless. For basic medium, it turns pink.
What happens if phenolphthalein is added?
When phenolphthalein is added to the base the colour of the solution intensifies and if it is added to an acidic solution the colour will fade away and become colourless. Complete step by step answer: Phenolphthalein is a chemical compound that is used as an indicator in acid-base titrations.
What happens when phenolphthalein is added to?
when phenolphthalein is added to basic solution it turns pink..
When a few drops of phenolphthalein are added to a solution having pH 10.5 then the colour?
When few drops of phenolphthalein are added to a dilute solution hydroxide a pink colour is produced.
When a few drops of phenolphthalein indicator were added to the solution of some compound a the solution becomes pink What does it indicate?
Phenolphthalein is an indicator which remain colourless in acidic sol. and changed to pink in basic sol. so in this case, ‘A’ is basic in nature and ‘B’ is acidic.
When few drops of phenolphthalein indicator were added to the solution of some compound A The solution became pink What does it indicate?
When a few drop os phenolphthalein indicator were added to the solution of some compound ‘A’, the solution became pink. What does it indicate? This shows that the solution of compound ‘A’ is of basic nature since phenolphthalein becomes pink in basic medium.
What happens when we add phenolphthalein solution to acid or base?
So when we add phenolphthalein solution to acid or base,the colour depends on a condition,which is a basic of Ionic equilibrium chapter. Hello there. We all know that phenolphthalein gives no colour when added to an acidic solution. Phenolphthalein is an acid indicator,means when we add water (pH 7) to it,it ionises giving a pink colour.
What is the colour of phenolphthalein and sodium hydroxide?
In Acidic solution phenolphthalein is colourless but in basic it gives pink colour . They both are used as a pH indicator . When a few drops of phenolphthalein are added to a dilute solution of sodium hydroxide, pink colour is produced.
What is the use of phenolphthalein indicator in titration?
Phenolphthalein is often used as an indicator in acid–base titrations…. For this application, it turns colorless in acidic solutions and pink in basic solutions…. It belongs to class of dyes known as Phthalein dyes…. Phenolphthalein is slightly soluble in water and usually is dissolved in alcohols for use in experiments….
What happens when sodium hydroxide is added to hydrochloric acid?
On the other hand, if all the sodium hydroxide is neutralized with hydrochloric acid, and then a slight excess of acid is added, the solution will be colourless as it gets into an acidic pH. Hope that helps! 🙂 What happens to a phenolphthalein indicator after adding an acidic solution?