Phenolphthalein is a synthetic indicator and its colours in acidi… - Vidyadip

MCQ

Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions respectively are:

A
Red and blue.
B
Blue and red.
C
pink and colourless.
✓
Colourless and pink.

✓

Answer

Correct option: D.

Colourless and pink.

Phenolphthalein remains colourless in acidic solution but turns pink in basic solution.

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