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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 · Q107 of 120

Geo-Scientist Prelims 2026 Chemistry Q107: The total number of 1,4-addition reactions involved in the…

QuestionOrganic / Michael addition and Robinson annulation

The total number of 1,4-addition reactions involved in the synthesis of target molecule [X] using the indicated starting material is/are

UPSC Combined Geo-Scientist Prelims 2026 Paper II (Chemistry), Q107: figure printed with the question
  1. (a) One
  2. (b) Two
  3. (c) Three
  4. (d) Four

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