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, 2018
UPSC Combined Geo-Scientist, Stage II (Mains). 8 pages, as issued by UPSC.
Every question of 2018, one page each46 parts in 15 questions, with the question as text and the key points of its answer
Question 1 80 marks
- 1(a)Equal molecular speeds5 marks
- 1(b)Fugacity under repulsion5 marks
- 1(c)Wetting of glass5 marks
- 1(d)FCC particle count5 marks
- 1(e)Joule–Thomson cooling5 marks
- 1(f)Gibbs and Helmholtz changes5 marks
- 1(g)Equilibrium-constant conventions5 marks
- 1(h)Very dilute hydrochloric acid5 marks
- 1(i)Pressure controlling boiling5 marks
- 1(j)Primary kinetic salt effect5 marks
- 1(k)Heat of spontaneous adsorption5 marks
- 1(l)Conductivity as an intensive property5 marks
- 1(m)Anthracene photodimerization5 marks
- 1(n)Particle-in-a-box eigenvalue5 marks
- 1(o)Second Balmer line5 marks
- 1(p)Normal-mode counts5 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