UPSC Combined Geo-Scientist, Mains · 2020 · Mains Paper I
Q2(c). Non-stoichiometric defects in transition metal compounds
Question
Why are non-stoichiometric defects shown by the transition metal compounds? Give examples.
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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Coversnon-stoichiometric defectsvariable oxidation stateFeOwustite
All parts of Question 2
- 2(a) Tetrasulphur tetranitride: preparation, structure, properties15 marks
- 2(b) Defects in CaCl₂ and AgBr10 marks
- 2(c) Non-stoichiometric defects in transition metal compounds5 marks