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Which one of the following is an example of natural acid-base indicator:

Arslan Khalid

29 Jul, 2023

A) Methyl Orange
B) Phenolphthalein
C) Turmeric
D) All of the Above

Details:

Turmeric is a natural acid-base indicator which is yellow in colour. It remains yellow in an acidic solution and turns to reddish brown in a basic solution.

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