What is a universal indicator? What are the different colours produced for different pH ranges
Answers
Answered by
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
Similar questions