What is indicator? Explain End point.
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Indicators are substances whose solutions change color due to changes in pH. ... They are usually weak acids or bases, but their conjugate base or acid forms have different colors due to differences in their absorption spectra.
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An indicator is a substance that changes its color in acidic and basic medium. An indicator shows one color in an acidic medium and different colors in a basic medium so that they are called indicators
End point: the point during a titration when an indicator shows that the amount of reactant necessary for a complete reaction has been added to a solution.
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