Question

Define = indicator. please please fast​

Answer 1

Answer:

Indicators are substances that change colour when they are added to acidic or alkaline solutions. Litmus, phenolphthalein, and methyl orange are all indicators that are commonly used in the laboratory.

Answer 2

Answer:

hey friend...here is your answer..

Explanation:

Indicator refers to a substance which indicates whether a given substance is acidic or basic and its pH values too by changing its color..

example: methyl orange,litmus paper,etc..

hoping that this answer is helpful...Mark as brainliest if you find soo..