Question

What is universal indicator? State the purpose for which this indicator is used.​

Answer 1

Answer:

a substance that changes to different colours according to whether another substance that touches it is an acid or an alkali

Its use:-

To test whether the substance is acid or base

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Answer 2

$\huge \star \purple {AnsWeR}$

• The main components of a universal indicator, in the form of a solution, are thymol blue, methyl red, bromothymol blue, and phenolphthalein. This mixture is important because each component loses or gains protons depending upon the acidity or alkalinity of the solution being tested.