Question

state two acid base indicators and mention their colour change

Answer 1

Hi. First of all, What is an acid-base indicator?

An acid base indicator tells us whether an object is acidic or basic in nature.

Examples:

1. Litmus Paper: Turns red if substance is acidic and blue if it's basic.
2. Methyl Orange: Turns red if substance is acidic and yellow if it's basic.

Hope it helps.

Answer 2

Acid-Base Indicator Examples. Perhaps the best known pH indicator is litmus. Thymol Blue, Phenol Red and Methyl Orange are all common acid-base indicators. Red cabbage can also be used as an acid-base indicator.