Question

what is universal indicators?what is its advantages?

Answer 1

Answer:

Universal indicator:- a mixture of dyes that changes colour gradually over a range of pH and is used as anindicator paper in testing for acid. The advantage of the universal indicator is that it displays a variety of colors over the whole pH scale. This makes it possible to determine an approximate pH of a solution over a range from 1-14. whereas, A commonly used acid-base indicator is litmus.

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Answer 2

Answer:

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Explanation:

A universal indicator is a pH indicator made of a solution of several compounds that exhibits several smooth colour changes over a wide range pH values to indicate the acidity or alkalinity of solutions. ... Wide-range pH test papers with distinct colours for each pH from 1 to 14 are also available.

The advantage of the universal indicator is that it displays a variety of colors over the whole pH scale. This makes it possible to determine an approximate pH of a solution over a range from 1-14. whereas, A commonly used acid-base indicator is litmus.