Q3(c). Fuel and oxidant for two flames in AAS
What fuel and oxidant combination should be used in AAS for (i) attaining flame temperature of 1800 °C with maximum burning velocity of 40 cm/s? (ii) attaining flame temperature of 3000 °C with burning velocity of 2000 cm/s?
Model answer
The free solution for 2022 answers questions 1, 4, 5, 6, 7 and 10, the ones picked in its time plan. Question 3 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
Coversflame AASfuel oxidantburning velocityacetylene oxygen flamenatural gas air flame
All parts of Question 3
- 3(a) Density of silver from its powder XRD pattern15 marks
- 3(b) Lead in petrol: direct and indirect methods10 marks
- 3(c) Fuel and oxidant for two flames in AAS5 marks