Essential Chemistry for IGCSE - Chemical Reactions (Section 4 - No. 49)
What is the role of an indicator like potassium permanganate in redox titrations?
To react with the reactants and produce a gas.
To help determine the exact point of reaction.
To change color when the reaction is complete.
To act as a catalyst and speed up the reaction.
Explanation
Indicators change color to signal the completion of a reaction.
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