Chemistry, asked by aditya87461, 8 months ago

What is a universal indicator? What are the different colours produced for different pH ranges

Answers

Answered by prachinigam2006
2

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. ... Experiments with Yamada's universal indicator are also described in the Journal of Chemical Education.

Wide-range pH test papers with distinct colours for each pH from 1 to 14 are also available. Colour matching charts are supplied with the specific test strips purchased.pH range Description Colour

3–6 Weak acid Orange or yellow

7 Neutral Green

8–11 Weak alkali Blue

> 11 Strong alkali Violet or Indigo

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