UPSC Combined Geo-Scientist, Mains · 2022 · Mains Paper I
Q9(c). Substitution in vanadium carbonyls
Question
Which one of the given complexes will undergo ligand substitution faster with PPh₃? Why? [V(CO)₆] and [V(CO)₆]⁻
Model answer
The free solution for 2022 answers questions 1, 2, 4, 7, 8 and 11, the ones picked in its time plan. Question 9 is answered in full in the Geo-Scientist Chemistry Paper I, 2021 to 2025 book, with every part of every paper.
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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
CoversV(CO)617-electron complexligand substitution18-electron rulePPh3 substitution
All parts of Question 9
- 9(a) Electron counts and metal-metal bonds10 marks
- 9(b) Structures and bonding of iron carbonyl clusters15 marks
- 9(c) Substitution in vanadium carbonyls5 marks