UPSC Combined Geo-Scientist, Mains · 2026 · Mains Paper I
Q5(b). Gravimetric estimation of nickel (g L⁻¹)
Question
Describe the experimental procedure for gravimetric estimation of nickel in grams per litre with necessary calculation steps.
Model answer
The free solution for 2026 answers the questions picked in its time plan. Question 5 is answered in full in the Book Edition of the 2026 solutions of Geo-Scientist Chemistry Paper I.
CoversNi with dimethylglyoximeGravimetric estimation of nickel (g L⁻¹)
All parts of Question 5
- 5(a) Colours of TcO₄⁻, MnO₄⁻ and MnO₄²⁻10 marks
- 5(b) Gravimetric estimation of nickel (g L⁻¹)10 marks
- 5(c) E^° of MnO₄⁻/Mn²⁺ by potentiometric titration10 marks