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Indian Forest Service (Mains)

Chemistry optional

  • 2 papers
  • 200 marks each
  • 3 h per paper

Paper II covers organic chemistry and spectroscopy.

Indian Forest Service (Mains), Chemistry optional · 2023 · Paper II

Q4(b). Rates of alkoxide-induced elimination

Question

Rank I ethyl bromide, II tert-butyl bromide, III isopropyl bromide and IV n-propyl bromide in decreasing elimination rate with NaOEt/EtOH at 55 °C.

Model answer

The free solution for 2023 answers questions 1, 2, 5, 6 and 7, 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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Topic notes: elimination reactions (E1, E2, E1cB, Saytzeff and Hofmann, anti-periplanar, Chugaev, Cope), with every Civil Services, IFoS and Geo-Scientist PYQ →

CoversE2 eliminationsodium ethoxidealkyl bromideselimination ratetert-butyl bromide

All parts of Question 4