UPSC Combined Geo-Scientist, Mains · 2017 · Mains Paper I
Q6(c). B–F π bonding in BF₃ versus BBr₃
Question
The B–Br bond of BBr₃ is a single bond; however, the B–F bond of BF₃ is between a single and a double bond. Rationalize the observation.
Model answer
The free solution for 2017 answers questions 1, 2, 4, 7, 8 and 11, the ones picked in its time plan. This part is not answered on the site yet. New answers are announced on Telegram.
Part of VKC Basic
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Coversback bondingBF3BBr3pπ-pπ bondingLewis acidity of boron halides
All parts of Question 6
- 6(a) Why B₂ is paramagnetic and C₂ diamagnetic10 marks
- 6(b) Br₂ and HCl with benzene and borazine10 marks
- 6(c) B–F π bonding in BF₃ versus BBr₃10 marks