UPSC Combined Geo-Scientist, Mains · 2024 · Mains Paper III
Q2(c). Furnace atmosphere and the TG curve; CaC₂O₄·H₂O in O₂ and N₂
Question
How does the furnace atmosphere affect the shape of the TG curve? Specify at least two reasons. Compare the thermodecomposition profiles of CaC₂O₄·H₂O taken in dry O₂(g) and in dry N₂(g).
Model answer
The free solution for 2024 answers questions 1, 4, 5, 6, 7 and 9, the ones picked in its time plan. Question 2 is answered in full in the Geo-Scientist Chemistry Paper III, 2021 to 2025 book, with every part of every paper.
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UPSC Combined Geo-Scientist (Main) Chemistry Paper III: Model Answers 2021 to 2025
- All ten questions of each paper, with the question printed above its answer
- Instruments drawn as labelled diagrams, numericals worked with units
- Topic-wise weightage and a topic-wise index
CoversthermogravimetryTG curvefurnace atmospherecalcium oxalate monohydratethermal decomposition
All parts of Question 2
- 2(a) Bonner affinity series of an ion-exchange resin10 marks
- 2(b) Monochromator in IR spectroscopy: role, types, components10 marks
- 2(c) Furnace atmosphere and the TG curve; CaC₂O₄·H₂O in O₂ and N₂10 marks