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Effect on Indicators by Acids and Bases

What is the c...

Question

What is the colour change observed in dil. HCl solution when phenolphthalein is added to it?

A

Colourless

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B

Pink

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C

Yellow

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D

Green

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Solution

The correct option is B Pink
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.

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