Question

phenolphthalein indicator is a which type of indicator ( 1) natural 2) chemical 3) universal 4) all of above

Answer 1

And is 3) universal. Thx

Answer 2

Answer: Option (3) is the correct answer.

Explanation:

A universal indicator is defined as an indicator which helps in indicating pH of a solution which is made up of several compounds which tends to show color changes over a wide range of pH values to show the acidity or basicity of a solution.

For example, phenolphthalein, methyl red, thymol blue etc are universal indicators.

Thus, we can conclude that phenolphthalein indicator is a universal type of indicator.