UPSC Combined Geo-Scientist, Mains · 2021 · Mains Paper III
Q4(b). Components of a UV–visible spectrophotometer and their functions
Question
Mention the essential components of a UV-visible spectrophotometer along with their functions.
Model answer
The free solution for 2021 answers questions 1, 2, 5, 6, 7 and 10, the ones picked in its time plan. Question 4 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
CoversUV-visible spectrophotometerdeuterium lampmonochromatorphotomultiplier tubequartz cuvette
All parts of Question 4
- 4(a) X-ray fluorescence: theoretical basis; bulk against surface15 marks
- 4(b) Components of a UV–visible spectrophotometer and their functions10 marks
- 4(c) Scanning and isothermal thermogravimetry; the thermobalance5 marks