UPSC Combined Geo-Scientist
Chemist
- 3 descriptive papers
- 200 marks each
- 3 h per paper
Mains Paper I covers inorganic chemistry.
All years
Pages 1 and 2 of 28 
Pages 3 and 4 of 28 
Pages 5 and 6 of 28 
Pages 7 and 8 of 28 
Pages 9 and 10 of 28 
Pages 11 and 12 of 28
Pages 13 and 14 of 28 Pages 15 and 16 of 28 Pages 17 and 18 of 28 Pages 19 and 20 of 28 Pages 21 and 22 of 28 Pages 23 and 24 of 28 Pages 25 and 26 of 28 Pages 27 and 28 of 28 
Mains Paper I, inorganic chemistry
Solution, 2022
UPSC Combined Geo-Scientist, Stage II (Mains). 28 pages. Questions 1, 2, 4, 7, 8 and 11 are answered.
Every question of 2022, one page each41 parts in 11 questions, with the question as text and the key points of its answer
Question 1 50 marks
- 1(a)Minerals and framework structures5 marks
- 1(b)Ground terms by L-S coupling5 marks
- 1(c)Square-planar stereoisomers5 marks
- 1(d)Carbonate in carbonic acid5 marks
- 1(e)Chloride from silver chloride5 marks
- 1(f)Iron percentage by permanganate5 marks
- 1(g)Masking copper to determine nickel5 marks
- 1(h)Carbonyl ligand counts5 marks
- 1(i)Carbon-14 dating of wood5 marks
- 1(j)Oxidising power across the series5 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
Part of VKC Basic
Read the full model answer to every question of this paper with VKC Basic
VKC Basic (₹999 for 6 months) opens every solved answer, the notes, the handbook and the daily answer archive. Every Mains test series includes it.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Printed copy and Kindle
UPSC Combined Geo-Scientist (Main) Chemistry Paper I: Model Answers 2021 to 2025
The book has all five years of Paper I in one volume, with all eleven questions of every paper answered, the question printed above each answer, a time plan for each paper, the topic-wise weightage of marks and a topic-wise index.