Question

what is universal indicators with example​

Answer 1

Answer:

"universal indicator" contains thymol blue, methyl red, bromothymol blue, thymol blue, and phenolphthalein. It covers a pH range from less than 3 (red) to greater than 11 (violet). Intermediate colors include orange/yellow (pH 3 to 6), green (pH 7 or neutral), and blue (pH 8 to 11).

Answer 2

Multifunctional indicator is a kind of pH indicator, which is made of a variety of compound solutions and has various soft color changes in a wide pH range to indicate the acidity or alkalinity of the solution.

For example, "general indicators" include thymol blue, methyl red, bromothymol blue, thymol blue, and phenolphthalein. The pH value ranges from less than 3 (red) to more than 11 (purple). The intermediate colors are orange/yellow (pH 3-6), green (pH 7 or neutral) and blue (pH 8-11).