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Indian Forest Service (Mains)

Chemistry optional

  • 2 papers
  • 200 marks each
  • 3 h per paper

Paper I covers physical and inorganic chemistry.

Paper I, physical and inorganic chemistry

Previous year questions

Question papers for 2016 to 2025 can be read here and downloaded. Solutions for 2021 to 2025 can be read here, page by page. Each solution here answers the five questions picked in its time plan: Questions 1 and 5 and three more, with at least one from each section.

Cover of UPSC Indian Forest Service (Main) Chemistry Paper I: Model Answers 2021 to 2025
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UPSC Indian Forest Service (Main) Chemistry Paper I: Model Answers 2021 to 2025

  • All eight questions of each paper, with the question printed above its answer
  • Physical chemistry numericals worked with units; inorganic structures drawn
  • Topic-wise weightage and a topic-wise index
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