UPSC Combined Geo-Scientist
Chemist
- 3 descriptive papers
- 200 marks each
- 3 h per paper
Mains Paper II covers physical chemistry.
All topics
Mains Paper II, physical chemistry
Outside the listed units: every question, 2016 to 2025
11 parts worth 66 marks have been set on this unit in UPSC Geo-Scientist Chemistry Mains Paper II from 2016 to 2025. Each one opens on its own page with the question, the answer in brief and the key points.
Syllabus
Parts that test something not named in the syllabus.
2019
- Q1(c) Surface energy of cube and sphere5 marks Answered
- Q2(b) Volatility of ether and ethanol5 marks Answered
2018
- Q1(c) Wetting of glass5 marks Answered
- Q14(a) Why glycerol is more viscous than water5 marks Question only
- Q14(b) Acid strength order: phosphorus oxoacids; CH₃COOH vs CF₃COOH5 marks Question only
2017
- Q1(i) Units of magnetic moment6 marks Answered
- Q1(j) Surface tension of isomers5 marks Answered
- Q1(k) Water versus hydrogen sulfide5 marks Answered
- Q9 Energy of atomising a water drop10 marks Answered
2016
- Q1(b) Inclined capillary5 marks Answered
- Q10(a) Work of dispersing a liquid drop10 marks Answered
Printed copy and Kindle
UPSC Combined Geo-Scientist (Main) Chemistry Paper II: Model Answers 2021 to 2025
- All fifteen questions of each paper, with the question printed above its answer
- Numericals worked from formula to result with units; graphs with labelled axes
- Topic-wise weightage and a topic-wise index