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

Q6(c). Zimmermann–Reinhardt solution in Fe²⁺–KMnO₄ titration

10 marks
Topic: Redox titrations
Question only

Question

What is Zimmermann–Reinhardt solution? Explain its role in the titration of Fe²⁺ ion with KMnO₄ in HCl medium.

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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CoversZimmermann-Reinhardt solutionpermanganate titrationHCl mediumMnSO4 H3PO4

All parts of Question 6

6(a) Solubility versus solubility product10 marks
6(b) Co-precipitation and post-precipitation10 marks
6(c) Zimmermann–Reinhardt solution in Fe²⁺–KMnO₄ titration10 marks