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UPSC Combined Geo-Scientist

Chemist

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

Mains Paper III covers analytical and organic chemistry.

UPSC Combined Geo-Scientist, Mains · 2018 · Mains Paper III

Q7(a). Epoxidation reactivity

Question

Which alkene is most reactive toward mCPBA: ethene, propene, but-2-ene or 2-methylbut-2-ene?

Answer in brief

2-Methylbut-2-ene, the trisubstituted alkene, is most reactive in the stated series.

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The full model answer

As written for the answer booklet: the diagram carries the working, the lines stay short. Read here only; it is not offered as a download.

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CoversEpoxidation reactivityElectrophilic oxygen transfer

All parts of Question 7