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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 · 2026 · Paper II, Chemistry · Q104 of 120

Geo-Scientist Prelims 2026 Chemistry Q104: The major product formed in the following reaction is

QuestionOrganic / iodoetherification

The major product formed in the following reaction is

UPSC Combined Geo-Scientist Prelims 2026 Paper II (Chemistry), Q104: figure printed with the question
UPSC Combined Geo-Scientist Prelims 2026 Paper II (Chemistry), Q104: answer options as printed
  1. (a) Tetrahydrofuran: CH₂I wedge, OH wedge (cis to each other), CH₂CO₂Me hashed
  2. (b) Tetrahydrofuran: CH₂I hashed, OH wedge, CH₂CO₂Me hashed
  3. (c) Tetrahydrofuran: CH₂I wedge, OH wedge, CH₂CO₂Me wedge
  4. (d) Tetrahydrofuran: CH₂I hashed, OH wedge, CH₂CO₂Me wedge

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