UPSC Combined Geo-Scientist
Chemist
- 3 descriptive papers
- 200 marks each
- 3 h per paper
Mains Paper II covers physical chemistry.
All years

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Mains Paper II, physical chemistry
Question paper, 2017
UPSC Combined Geo-Scientist, Stage II (Mains). 7 pages, as issued by UPSC.
Every question of 2017, one page each39 parts in 15 questions, with the question as text and the key points of its answer
Question 1 80 marks
- 1(a)Van der Waals equation8 marks
- 1(b)Adiabatic expansion of helium6 marks
- 1(c)Arrhenius acids and bases6 marks
- 1(d)Carnot efficiency6 marks
- 1(e)Dimerization and temperature6 marks
- 1(f)Zero-order integrated law6 marks
- 1(g)Van't Hoff factor6 marks
- 1(h)Molar absorptivity6 marks
- 1(i)Units of magnetic moment6 marks
- 1(j)Surface tension of isomers5 marks
- 1(k)Water versus hydrogen sulfide5 marks
- 1(l)Momentum eigenfunction6 marks
- 1(m)Atomic emission selection rules8 marks
Question 2 10 marks
Question 3 10 marks
Question 4 10 marks
Question 5 10 marks
Question 6 10 marks
Question 7 10 marks
Question 8 10 marks
Question 9 10 marks
Question 10 10 marks
Question 11 20 marks
Question 12 20 marks
Question 13 20 marks
Question 14 20 marks






