UPSC Combined Geo-Scientist
Chemist
- 3 descriptive papers
- 200 marks each
- 3 h per paper
Mains Paper I covers inorganic chemistry.
All years
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Mains Paper I, inorganic chemistry
Question paper, 2018
UPSC Combined Geo-Scientist, Stage II (Mains). 4 pages, as issued by UPSC.
Every question of 2018, one page each38 parts in 11 questions, with the question as text and the key points of its answer
Question 1 50 marks
- 1(a)Lithium hydride5 marks
- 1(b)Coordination nomenclature5 marks
- 1(c)Werner valencies and isomers5 marks
- 1(d)Bronsted and Lewis acids5 marks
- 1(e)Halogen displacement5 marks
- 1(f)Predicting carbonyl numbers5 marks
- 1(g)Radiocarbon age5 marks
- 1(h)Alkali-ion selectivity of resins5 marks
- 1(i)Borazine and benzene5 marks
- 1(j)Anomalous lanthanide radii5 marks
Question 2 30 marks
Question 3 30 marks
Question 4 30 marks
Question 5 30 marks
Question 6 30 marks
Question 7 30 marks
Question 8 30 marks
Question 9 30 marks
Question 10 30 marks
Question 11 30 marks