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UPSC Combined Geo-Scientist

Chemist

  • 3 descriptive papers
  • 200 marks each
  • 3 h per paper

Mains Paper III covers analytical and organic chemistry.

UPSC Combined Geo-Scientist, Mains · 2026 · Mains Paper III

Q5(c). Volumetric Cu in brass without interference from Zn

  • 10 marks
  • Topic: Redox titrations
  • Question only
Question

How will Cu content in a brass sample be quantitatively analyzed volumetrically without interference from Zn present? Describe the method and steps involved in the analysis.

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 III.

Coversiodometric determination of copperVolumetric Cu in brass without interference from Zn

All parts of Question 5