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, 2017
UPSC Combined Geo-Scientist, Stage II (Mains). 7 pages, as issued by UPSC.
Every question of 2017, 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)Dichromate oxidation of iron5 marks
- 1(b)Phosphorus-doped silicon5 marks
- 1(c)Nickel magnetic moment5 marks
- 1(d)Eighteen-electron counts5 marks
- 1(e)Magic numbers5 marks
- 1(f)Dimethylberyllium bridges5 marks
- 1(g)CFCs and ozone depletion5 marks
- 1(h)Why thorium and uranium are well studied5 marks
- 1(i)Average and individual oxidation states5 marks
- 1(j)Mo and W 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