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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper II covers chemistry.

UPSC Combined Geo-Scientist, Prelims · 2022 · Paper II, Chemistry · Q104 of 120

Geo-Scientist Prelims 2022 Chemistry Q104: The major product formed in the following reaction sequence is

QuestionAlkenes / intramolecular oxymercuration

The major product formed in the following reaction sequence is

UPSC Combined Geo-Scientist Prelims 2022 Paper II (Chemistry), Q104: figure printed with the question
UPSC Combined Geo-Scientist Prelims 2022 Paper II (Chemistry), Q104: answer options as printed
  1. (a) 2,2-Dimethyltetrahydropyran (2,2-dimethyloxane)
  2. (b) 2-Methyloxepane
  3. (c) 5-Methylhexane-1,5-diol (tertiary OH)
  4. (d) 2-Methylhexane-1,6-diol (primary OH at the branch)

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Topic notes: addition to alkenes and alkynes (Markovnikov, stereochemistry, dienes), with every Civil Services, IFoS and Geo-Scientist PYQ →

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