Thu January 24, 2013 By:

What is universal indicator?What is the effect of universal indicator in carboxylic acid ?

Expert Reply
Fri January 25, 2013
A universal indicator is a solution which undergoes several color changes over a wide range of pH's. The color is used to "indicate" pH directly. Universal indicators are usually mixtures of several indicators.
Universal indicator which is actually a mixture of several indicators displays a variety of colours over a wide pH range so it can be used to determine an approximate pH of a solution but is not used for titrations.
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