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Questions and Answers
What is the primary purpose of using metal ion indicators in complexometric titration?
What is the primary purpose of using metal ion indicators in complexometric titration?
- To indicate the presence of metal ions
- To determine the equivalence point (correct)
- To detect the formation of metal-EDTA complex
- To measure the pH of the solution
What is the formation constant (Kf) for the reaction between metal ion and metal-in indicator?
What is the formation constant (Kf) for the reaction between metal ion and metal-in indicator?
- 20
- 25
- 10
- 18 (correct)
What is the color of the solution at the end point of a complexometric titration?
What is the color of the solution at the end point of a complexometric titration?
- Red
- Blue
- Green
- Colourless (correct)
Why is Erichrome Black T (EBT) unstable in solution?
Why is Erichrome Black T (EBT) unstable in solution?
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What is the purpose of complexometric titration in the food industry?
What is the purpose of complexometric titration in the food industry?
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What is the significance of the equivalence point in a complexometric titration?
What is the significance of the equivalence point in a complexometric titration?
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What is the characteristic of the phenolic groups in Erichrome Black T?
What is the characteristic of the phenolic groups in Erichrome Black T?
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What is the primary advantage of complexometric titration?
What is the primary advantage of complexometric titration?
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What is the role of EDTA in complexometric titration?
What is the role of EDTA in complexometric titration?
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What is the significance of freshly preparing Erichrome Black T solutions?
What is the significance of freshly preparing Erichrome Black T solutions?
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