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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.

Indian Forest Service (Mains), Chemistry optional · 2021 · Paper I

Q7(c). Pi donors and acceptors in octahedral complexes

Question

How do π-donor and π-acceptor ligands affect the spectral properties of metal complexes? Explain with MO diagram.

Model answer

The free solution for 2021 answers questions 1, 2, 4, 5 and 6, the ones picked in its time plan. Question 7 is answered in full in the IFoS Chemistry Paper I, 2021 to 2025 book, with every part of every paper.

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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

Coversπ-donor ligandsπ-acceptor ligandsMO diagram octahedral complexcrystal field splitting Δospectrochemical series

All parts of Question 7