UPSC Combined Geo-Scientist, Mains · 2020 · Mains Paper I

Q5(c). Gravimetric nickel with dimethylglyoxime

10 marks
Topic: Gravimetric analysis
Question only

Question

Mention the underlying principle for the gravimetric determination of nickel using dimethylglyoxime. Draw the structure of the complex.

Model answer

The free solution for 2020 answers questions 1, 3, 4, 7, 8 and 10, the ones picked in its time plan. This part is not answered on the site yet. New answers are announced on Telegram.

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Coversnickel dimethylglyoximegravimetric analysisNi(DMG)2hydrogen bonding

All parts of Question 5

5(a) Indicator for HCl versus NH₄OH titration10 marks
5(b) Determining NaHCO₃ and Na₂CO₃ in a mixture10 marks
5(c) Gravimetric nickel with dimethylglyoxime10 marks