UPSC Combined Geo-Scientist, Mains · 2018 · Mains Paper III
Q8(b). Identify the antiaromatic compound
Question
Identify an anti-aromatic compound from the following. Rationalise your answer. [structures given in the paper]
Model answer
The free solution for 2018 answers questions 1, 4, 5, 6, 7 and 10, 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
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.
CoversantiaromaticityHückel rule4n π electronscyclobutadiene
All parts of Question 8
- 8(a) Increasing stability of carbocations5 marks
- 8(b) Identify the antiaromatic compound5 marks
- 8(c) Reagents for an alkyne-to-alkene transformation5 marks
- 8(d) pKa order of four carbonyl compounds5 marks
- 8(e) Identify A (C₁₀H₁₆O) and B from tests and ozonolysis10 marks