When Few Drops Of Phenolphthalein Are Added To A Dilute Solution Of Sodium Hydroxide?

What happens when a few drops of phenolphthalein is added to an acidic solution?

Answer: 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.

If concentration of is greater than that of then the solution will be colourless..

Which Colour is produced when a drop of phenolphthalein is added to Naoh solution?

pink colourWhen few drops of phenolphthalein are added to dilute solution of sodium hydroxide a pink colour is produced .

What happens when some drops of phenolphthalein are added to the substance B?

Solution : The solutio A is basic in nature and phenolphthalein has imparted pink colour to it. The solution B is of an acid which has ultimately made solution A colourless by neutralising its basic effect. Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

What will be the effect of adding phenolphthalein to an acidic solution?

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.

In which solution would phenolphthalein turn pink?

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. Phenolphthalein is slightly soluble in water and usually is dissolved in alcohols for use in experiments.

When few drops of phenolphthalein are added to a dilute solution of sodium hydroxide a pink Colour is produced what will be the Colour of the final mixture when excess of HCL is added to it?

Phenolphthalein remains colourless in neutral or acidic solution but turns out magenta or pink in basic solutions. When it is added to NaOH, the solution has the colour of pink since sodium hydroxide is a strong base.

When 4 drops of phenolphthalein are added to hydrochloric acid What is the solution?

Answer. Phenolphthalein is an indicator which is colourless in acidic medium and pink in basic medium. Since Hydrochloric acid is an acid,the solution will turn Colourless.

What is the Colour of phenolphthalein in Naoh?

pinkPhenolphthalein is an indicator of acids (colorless) and bases (pink). Sodium hydroxide is a base, and it was in the pitcher at the beginning, so when added to the phenolphthalein in beakers 2 and 4, it turned pink (top half of the graphic).

What happens when a few drops of phenolphthalein is added to sodium hydroxide solution?

When a few drops of phenolphthalein are added to a dilute solution of sodium hydroxide, a pink colour is produced. … Solution : Phenolphthalein acquires pink colour in sodium hydroxide solution because of its basic nature.

What happens when phenolphthalein is added to a solution of NaOH and HCL?

Answer. Phenolphthalein is a weak acid, which is why when it is added in a strong base, it gives pink color and the color gets intense as the PH of the base increases. … By adding HCL in the solution, the pink color of phenolphthalein will disappear. This is also called Acid- Base Titration.

Does the Colour of phenolphthalein reappear?

Phenolphthalein is basic indicator which remain colorless in acidic and neutral solution and turns pink or magenta in basic solution. … (iii) If few drops of NaOH is added again to the same solution, the solution become basic and the pink color of the phenolphthalein reappears.

What do you observe when a drop of phenolphthalein is added to sodium hydroxide solution?

Explanation: When the sodium hydroxide, which is a base, is mixed with phenolphthalein, it turns pink. … This happens because the base is neutralized in an acid solution, which causes the indicator to become colorless.

What happens when two drops of phenolphthalein?

When few drops of phenolphthalein are added to a dilute solution hydroxide a pink colour is produced.

What is the color of phenolphthalein?

PinkOther indicatorsIndicatorAcidicAlkalineMethyl orangeRedYellowPhenolphthaleinColourlessPink

What is the Colour of phenolphthalein in dilute HCL?

On adding nearly 5 mL sodium hydroxide solution to the mixture of hydrochloric acid and phenolphthalein solution, the colour of the mixture changes to pink. On addition of hydrochloric acid solution to the pink solution, the colour starts fading gradually and finally the solution becomes colourless.

When a drop of phenolphthalein is added to solution a it turns pink The Solution A is?

Solution A gives pink color when a drop of phenolphthalein indicator is added to it, hence, it is a basic solution and pH range in between 9-10. Solution B gives red color when a drop of methyl orange is added to it, hence, it is an acidic solution and pH range in between 4-6. Therefore, solution A has higher pH value.

What do you observe when few drops of sodium hydroxide?

Answer. When sodium hydroxide solution will be added to the test tube containing red litmus it will turn it to blue. When sodium hydroxide solution will be added to test tube containing distilled water then there will be no change.

Why does the pink color of phenolphthalein fade away?

Phenolphthalein is an acid/base indicator. It is colorless when it is an acid and pink when it is a base. … When enough carbonic acid is formed it neutralizes the lime water, which is a base and makes the solution an acid. Therefore with the phenolphthalein, the color disappears in the now acidic solution.