UPSC Combined Geo-Scientist, Mains · 2018 · Mains Paper I
Q10(a). Diborane from BF₃: structure, bonding, reactions with water and NH₃
Question
State the method of preparation of diborane from BF₃. Draw its structure and discuss its bonding. What happens when diborane is reacted with (i) water (ii) excess ammonia at low temperature?
Model answer
The free solution for 2018 answers questions 1, 3, 4, 6, 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.
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CoversdiboraneBF3 LiAlH43c-2e bonddiammoniate of diborane
All parts of Question 10
- 10(a) Diborane from BF₃: structure, bonding, reactions with water and NH₃15 marks
- 10(b) Ortho-, pyro-, cyclic and chain silicates15 marks