What happens when phenolphthalein is added to NaOH solution?

– NaOH (sodium hydroxide) is a base, phenolphthalein is added and the base turns pink in colour.

What colour does sodium hydroxide turn?

Explanation: The universal indicator added to the sodium hydroxide turns the original solution a violet color. The indicator is used to detect the presence of an acid or base, and the sodium hydroxide is a base, turning the solution purple.

wHat color is phenolphthalein in basic solution?

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.

wHat will be the colour change when phenolphthalein is added to hydrochloric acid?

Phenolphthalein acts as an indicator which turns the colour of the acidic solution pink. When the indicator is added to dilute hydrochloric acid, the colour of the solution changes to pink due to its acidic nature.

What is the colour of phenolphthalein?

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 the class of dyes known as phthalein dyes.

Is sodium hydroxide turns blue litmus red?

The statement “Sodium hydroxide turns blue litmus red.” is False. The reasons is when a base comes in contact with a blue litmus paper, it doesn’t change the colour of the paper. When a base comes in contact with a red litmus paper it turns the paper blue.

Why does phenolphthalein turn pink in a base?

Complete step by step solution: -Phenolphthalein is widely used as an indicator in acid-base titrations. -It turns colourless in presence of an acid and turns pink in presence of a base. It is due to the formation of ions that the solution turns pink.

wHat happens when you mix sodium hydroxide and phenolphthalein and hydrochloric acid?

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. All of the base is neutralized by the citric acid.

What color does sodium hydroxide turn litmus paper?

blue
Sodium hydroxide solution turns blue litmus paper to red.

When a substance turns blue litmus red?

Acid
Acid turns blue litmus to red.