Chemistry, asked by garimamohindhru564, 10 months ago

How do indicators work?

Answers

Answered by Ritikalakrabairagi

pH indicators detect the presence of H+ and OH-. They do this by reacting with H+ and OH-: They are themselves weak acids and bases. If an indicator is a weak acid and is coloured and its conjugate base has a different colour, deprotonation causes a colour change.
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