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 18 
Pages 3 and 4 of 18 
Pages 5 and 6 of 18
Pages 7 and 8 of 18 Pages 9 and 10 of 18 Pages 11 and 12 of 18 Pages 13 and 14 of 18 Pages 15 and 16 of 18 Pages 17 and 18 of 18 
Mains Paper I, inorganic chemistry
Solution, 2019
UPSC Combined Geo-Scientist, Stage II (Mains). 18 pages. Questions 1, 2, 4, 6, 9 and 11 are answered.
Every question of 2019, 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)Permanganate and iron(II)5 marks
- 1(b)Carbon isotopes and stability5 marks
- 1(c)Diagonal relationship5 marks
- 1(d)Conductivity of phosphoric acid5 marks
- 1(e)Oxidation of Fe(II) and Mn(II)5 marks
- 1(f)Melting points of bromine and iodine chloride5 marks
- 1(g)Small dipole moment of CO5 marks
- 1(h)Acidity of concentrated HF5 marks
- 1(i)Temperature and conductivity5 marks
- 1(j)Diborane with excess ammonia5 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.
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.