Question

difference between internal and external indicators and advantage anf disadvantages?​

Answer 1

Internal Indicators:

Internal indicators are those in which one of the reactants acts as an indicator.

Example:

KMnO4 acts as an internal indicator in the titration.

External Indicator:

External indicators are those which are added from outside that is they do not exist in the reaction.

Example:

Phenolphthalein, Methyl orange etc

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