Q7(a). Oxidative addition and reductive elimination
Explain the terms oxidative addition and reductive elimination in the hydrogenation reactions and how the coordination numbers of the metal atom alter, with an example.
Model answer
The free solution for 2024 answers questions 1, 2, 5, 6, 9 and 11, the ones picked in its time plan. Question 7 is answered in full in the Geo-Scientist Chemistry Paper I, 2021 to 2025 book, with every part of every paper.
Part of VKC Basic
Read the key points and the full model answer 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.
UPSC Combined Geo-Scientist (Main) Chemistry Paper I: Model Answers 2021 to 2025
- All eleven questions of each paper, with the question printed above its answer
- Titration, gravimetric and nuclear numericals worked with units; structures drawn
- Topic-wise weightage and a topic-wise index
Coversoxidative additionreductive eliminationWilkinson's catalysthomogeneous hydrogenationcoordination number change
All parts of Question 7
- 7(a) Oxidative addition and reductive elimination10 marks
- 7(b)(i) Two forms of dicobalt octacarbonyl5 marks
- 7(b)(ii) Tetrahedral Ir₄(CO)₁₂5 marks
- 7(c) Why thick bottle glass looks coloured10 marks