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the presence of excess _____ions act as an indicator in the redox titration because they turn the solution pink at the end-point.

Choices:
Mn^2+
MnO4-
Fe^2+

Sagot :

Answer:

Mn^2+

Explanation:

The presence of excess MnO₄⁻ ion acts as an indicator in the redox titration because they turn the solution pink at the end point.

What is Redox Titration ?

Redox Titration is a laboratory method of determining the concentration of a given analyte by causing a redox reaction between the titrant and the analyte.

The presence of excess MnO₄⁻ ion acts as an indicator in the redox titration because they turn the solution pink at the end point.

Because  MnO₄⁻ is dark violet in colour & presence of it in little excess will give the solution pink colour at the end point.

Mn²⁺ and Fe²⁺ will not give such colour so cannot be used as indicator.

To know more about Redox Titration

https://brainly.com/question/12162076

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