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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 · 2017 · Mains Paper III

Q7(a). Complete two carbonyl reactions with mechanism

Question

Complete the following reactions and give their mechanisms. [two reactions, including benzaldehyde with an active methylene compound and a conjugate addition of a thiol to methyl vinyl ketone, given in the paper]

Model answer

The free solution for 2017 answers questions 1, 2, 4, 6, 9 and 10, 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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Coverscarbonyl reactionsMichael additionaldol condensationmechanism

All parts of Question 7