UPSC Combined Geo-Scientist, Mains · 2022 · Mains Paper I
Q9(b). Structures and bonding of iron carbonyl clusters
Question
Draw the structures of Fe₂(CO)₉ and Fe₃(CO)₁₂. Explain hybridization and bonding present in them.
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.
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.
Printed copy and Kindle
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
CoversFe2(CO)9 structureFe3(CO)12 structureiron carbonyl clustersbridging COmetal-metal bonding
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