Engineering Chemistry Laboratory Viva voice questions and answers

14. Estimation of Nickel in steel by EDTA Method

Chemistry (Lab) Practical : Viva – voice questions & answers

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Engineering Chemistry Laboratory : 14. Estimation of Nickel in steel by EDTA Method : Viva – voice questions & answers

VIVA – VOICE QUESTIONS & ANSWERS

14. Estimation of Nickel in steel by EDTA Method

1. What is the reason for adding buffer solution in the titration?

M-FSB and M-EDTA complexes are stable in the pH range 9-10. Hence a basic buffer containing NH₄Cl and NH₄OH is added to maintain the pH.

2. Name the metal ion indicator that is used in the estimation of nickel.

Muroxide

3. Mention the link solution that is used in the nickel estimation.

EDTA

4. What is the equivalent weight of nickel?

29.3

5. What type of indicator does fast sulphone black-F belong to?

Metal ion indicator

Engineering Chemistry Laboratory Viva voice questions and answers : Tag: : Chemistry (Lab) Practical : Viva – voice questions & answers - 14. Estimation of Nickel in steel by EDTA Method

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